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mf302 - 11 technical manual s1f70000 series technical manual ieee1394 controller s1r77801f00a technical manual s1f70000 series epson electronic devices website electronic devices marketing division first issue november,1990 u revised july,2001 in japan h b 4.5mm technical manual power supply ic s1f70000 series http://www.epson.co.jp/device/ this manual was made with recycle paper, and printed using soy-based inks. .com .com .com 4 .com u datasheet
notice no part of this material may be reproduced or duplicated in any from or by any means without the written permission of seiko epson. seiko epson reserves the right to make changes to this material without notics. seiko epson does not assume any liability of any kind arising out of any inaccuracies contained in this material or due to its application or use in any product or circuit and, further, there is no repersesnation that this material is applicable to products requiring high level reliability, such as, medical products. moreover, no license to any intellectual property rights is granted by implication or otherwise, and there is no representation or warranty that anything made in accordance with this material will be free from any patent or copyright infringement of a third party. this material or portions thereof may contain technology or the subject relating to strategic products under the control of the foreign exchange and foreign trade low of japan and may require an export licenes from the ministry of international trade and industry or other approval from another government agency. hd44103 is a registered trademark of hitachi, ltd. all other product names mentioned herein are trademarks and/or registered trademarks of their respective companies. ?seiko epson corporation 2001, all rights reserved. in pursuit of ?aving?technology , epson electronic devices. our lineup of semiconductors, liquid crystal displays and quartz devices assists in creating the products of our customers?dreams. epson is energy savings. 4.5mm .com .com .com .com 4 .com u datasheet
the information of the product number change starting april 1, 2001 the product number has been changed as listed below. to order, please use the new product number. for further information, please contact epson sales representative. configuration of product number l devices (example : s1f70000d00b100) s1 f 70000 d 00b1 00 packing specification specifications shape (c:dip, d:bare chip, m:sop, y:sot89) model number model name (f:power supply ics) product classification (s1:semiconductors) comparison table between new and previous number previous number new number sci7660m 0b s1f76600m0b0 sci7660c 0b s1f76600c0b0 sci7662m 0a s1f76620m0a0 sci7662d 0a s1f76620d0a0 sci7661m 0b s1f76610m0b0 sci7661m bb s1f76610m2b0 sci7661c 0b s1f76610c0b0 sci7654m 0a s1f76540m0a0 sci7654c 0a s1f76540c0a0 sci7664m 0a s1f76640m0a0 sci7664d 0a s1f76640d0a0 sci7810y * b s1f78100y2 * 0 sci7910y * a s1f79100y1 * 0 sci7631m la s1f76310m1l0 sci7631m ba s1f76310m1b0 sci7631m ka s1f76310m1k0 sci7631m aa s1f76310m1a0 sci7638m ha s1f76380m1h0 sci7638m la s1f76380m1l0 sci7633m ba s1f76330m1b0 sci7110m 0a s1f71100m0a0 sci7120m 0a s1f71200m0a0 sci7120m 0b s1f71200m0b0 sci7530m 0a s1f75300m0a0 previous number new number sci7530m 0b s1f75300m0b0 sci7721y * a s1f77210y1 * 0 sci7721y * b s1f77210y2 * 0 sci7720y * a s1f77200y1 * 0 sci7722y db s1f77220y2d0 .com .com .com .com 4 .com u datasheet
s1f70000 series technical manual .com .com .com .com 4 .com u datasheet
contents s1f70000 series epson i technical manual introduction ................................................................................................................... ....................................................... 1 selection guide ................................................................................................................ .................................................... 2 1. dc/dc converter s1f76600 series description .................................................................................................................... ...................................... 1C1 features ....................................................................................................................... ........................................ 1C1 applications ................................................................................................................... ..................................... 1C1 block diagram .................................................................................................................. .................................. 1C1 pin assignments ................................................................................................................ ................................. 1C1 pin descriptions ............................................................................................................... ................................. 1C1 specifications ................................................................................................................. ................................... 1C2 functional descriptions ........................................................................................................ ....................... 1C7 typical applications ........................................................................................................... ............................. 1C8 s1f76620 series description .................................................................................................................... .................................... 1C10 features ....................................................................................................................... ...................................... 1C10 block diagram .................................................................................................................. ................................ 1C10 pin descriptions ............................................................................................................... ............................... 1C11 functional descriptions ........................................................................................................ ..................... 1C13 electrical characteristics ..................................................................................................... .................. 1C14 example of reference external connection ..................................................................................... 1C 21 measurement circuit ............................................................................................................ ......................... 1C24 mechanical data ................................................................................................................ .............................. 1C25 2. dc/dc converter & voltage regulator s1f76610 series description .................................................................................................................... ...................................... 2C1 features ....................................................................................................................... ........................................ 2C1 applications ................................................................................................................... ..................................... 2C1 block diagram .................................................................................................................. .................................. 2C1 pin assignments ................................................................................................................ ................................. 2C2 pin descriptions ............................................................................................................... ................................. 2C2 specifications ................................................................................................................. ................................... 2C3 functional descriptions ........................................................................................................ ..................... 2C11 typical applications ........................................................................................................... ........................... 2C12 .com .com .com .com 4 .com u datasheet
contents ii epson s1f70000 series technical manual s1f76540 series description .................................................................................................................... .................................... 2C15 features ....................................................................................................................... ...................................... 2C15 applications ................................................................................................................... ................................... 2C15 block diagram .................................................................................................................. ................................ 2C16 pin descriptions ............................................................................................................... ............................... 2C16 electrical characteristics ..................................................................................................... .................. 2C19 functional descriptions ........................................................................................................ ..................... 2C22 characteristics graph .......................................................................................................... ...................... 2C29 application circuit examples ................................................................................................... ................. 2C30 s1f76640 series description .................................................................................................................... .................................... 2C38 features ....................................................................................................................... ...................................... 2C38 block diagram .................................................................................................................. ................................ 2C39 pin assignments ................................................................................................................ ............................... 2C40 pin descriptions ............................................................................................................... ............................... 2C41 chip external shape and pad center coordinates .......................................................................... 2C42 functional descriptions ........................................................................................................ ..................... 2C43 electrical characteristics ..................................................................................................... .................. 2C46 characteristics graph .......................................................................................................... ...................... 2C51 mechanical data ................................................................................................................ .............................. 2C56 application example ............................................................................................................ .......................... 2C57 3. voltage regulator s1f78100y series description .................................................................................................................... ...................................... 3C1 features ....................................................................................................................... ........................................ 3C1 block diagram .................................................................................................................. .................................. 3C1 pin descriptions ............................................................................................................... ................................. 3C2 pin assignments ................................................................................................................ ................................. 3C2 functional descriptions ........................................................................................................ ....................... 3C3 lineup ......................................................................................................................... ............................................ 3C4 absolute maximum ratings ....................................................................................................... ..................... 3C5 recommended operating conditions ............................................................................................... ........ 3C5 electrical characteristics ..................................................................................................... .................... 3C6 examples of reference external connection .................................................................................. 3C14 mechanical data ................................................................................................................ .............................. 3C14 .com .com .com .com 4 .com u datasheet
contents s1f70000 series epson iii technical manual characteristics graph .......................................................................................................... ...................... 3C15 s1f79100y series description .................................................................................................................... .................................... 3C21 features ....................................................................................................................... ...................................... 3C21 applications ................................................................................................................... ................................... 3C21 lineup ......................................................................................................................... .......................................... 3C21 block diagram .................................................................................................................. ................................ 3C21 pin assignments ................................................................................................................ ............................... 3C21 pin descriptions ............................................................................................................... ............................... 3C22 specifications ................................................................................................................. ................................. 3C22 package markings ............................................................................................................... ............................ 3C35 functional descriptions ........................................................................................................ ..................... 3C35 typical applications ........................................................................................................... ........................... 3C36 4. dc/dc switching regulators s1f76300 series s1f76310, s1f76380 series description .................................................................................................................... ............................ 4C1 features ....................................................................................................................... .............................. 4C1 applications ................................................................................................................... ........................... 4C1 lineup ......................................................................................................................... ................................... 4C1 block diagrams ................................................................................................................. ....................... 4C2 pin assignments ................................................................................................................ ....................... 4C3 pin descriptions ............................................................................................................... ........................ 4C3 specifications ................................................................................................................. .......................... 4C4 package markings ............................................................................................................... .................. 4C13 functional descriptions ........................................................................................................ ............ 4C13 typical applications ........................................................................................................... ................. 4C15 s1f76330 series description .................................................................................................................... .......................... 4C22 features ....................................................................................................................... ............................ 4C22 applications ................................................................................................................... ......................... 4C22 lineup ......................................................................................................................... ................................. 4C22 block diagrams ................................................................................................................. ..................... 4C23 pin assignments ................................................................................................................ ..................... 4C23 pin descriptions ............................................................................................................... ...................... 4C23 specifications ................................................................................................................. ........................ 4C24 .com .com .com .com 4 .com u datasheet
contents iv epson s1f70000 series technical manual package markings ............................................................................................................... .................. 4C26 functional descriptions ........................................................................................................ ............ 4C27 typical applications ........................................................................................................... ................. 4C28 s1f71100 series description .................................................................................................................... .................................... 4C34 features ....................................................................................................................... ...................................... 4C34 block diagram .................................................................................................................. ................................ 4C34 pin assignments ................................................................................................................ ............................... 4C35 pin descriptions ............................................................................................................... ............................... 4C35 functional descriptions ........................................................................................................ ..................... 4C36 absolute maximum ratings ....................................................................................................... ................... 4C37 electrical characteristics ..................................................................................................... .................. 4C38 example of external connection of reference circuit ............................................................... 4C39 mechanical data ................................................................................................................ .............................. 4C40 s1f71200 series description .................................................................................................................... .................................... 4C41 features ....................................................................................................................... ...................................... 4C41 block diagram .................................................................................................................. ................................ 4C42 pin assignments ................................................................................................................ ............................... 4C43 pin descriptions ............................................................................................................... ............................... 4C44 functional descriptions ........................................................................................................ ..................... 4C45 absolute maximum ratings ....................................................................................................... ................... 4C47 electrical characteristics ..................................................................................................... .................. 4C48 example of external connection of reference circuit ............................................................... 4C52 mechanical data ................................................................................................................ .............................. 4C54 5. dc/dc switching regulators & voltage follower s1f75300 series description .................................................................................................................... ...................................... 5C1 features ....................................................................................................................... ........................................ 5C1 lineup ......................................................................................................................... ............................................ 5C1 block diagram .................................................................................................................. .................................. 5C2 pin descriptions ............................................................................................................... ................................. 5C3 functional descriptions ........................................................................................................ ....................... 5C4 electrical characteristics ..................................................................................................... .................... 5C9 example of external connection ................................................................................................. ........... 5C13 example of reference circuit ................................................................................................... ............... 5C14 .com .com .com .com 4 .com u datasheet
contents s1f70000 series epson v technical manual 6. voltage detector s1f77200y series description .................................................................................................................... ...................................... 6C1 features ....................................................................................................................... ........................................ 6C1 lineup ......................................................................................................................... ............................................ 6C2 block diagram .................................................................................................................. .................................. 6C3 pin descriptions ............................................................................................................... ................................. 6C4 functional descriptions ........................................................................................................ ....................... 6C4 absolute maximum ratings ....................................................................................................... ..................... 6C5 electric characteristics ....................................................................................................... ...................... 6C6 examples of external connection ................................................................................................ .......... 6C19 sample circuits (s1f77210y series) ............................................................................................. ................. 6C20 sample circuits (s1f77200y series) ............................................................................................. ................. 6C21 precautions .................................................................................................................... .................................. 6C22 7. appendix absolute maximum ratings ....................................................................................................... ..................... 7C1 recommender operating conditions ............................................................................................... ........ 7C1 electrical characteristics ..................................................................................................... .................... 7C1 power dissipation conditions ................................................................................................... .................. 7C1 parameter summary .............................................................................................................. .......................... 7C2 mechanical data ................................................................................................................ ................................ 7C4 emboss carrier taping standard (sot89-3pin) taping information ............................................................................................................. .............................. 7C6 reel specifications ............................................................................................................ .............................. 7C7 device positioning ............................................................................................................. ............................... 7C7 emboss carrier taping standard (sop3-8pin) taping information ............................................................................................................. .............................. 7C8 reel specifications ............................................................................................................ .............................. 7C9 device positioning ............................................................................................................. ............................... 7C9 emboss carrier taping standard (sop5-14pin) taping information ............................................................................................................. ............................ 7C11 reel specifications ............................................................................................................ ............................ 7C12 device positioning ............................................................................................................. ............................. 7C12 .com .com .com .com 4 .com u datasheet
contents vi epson s1f70000 series technical manual emboss carrier taping standard (sop2-24pin) taping information ............................................................................................................. ............................ 7C14 reel specifications ............................................................................................................ ............................ 7C16 device positioning ............................................................................................................. ............................. 7C16 .com .com .com .com 4 .com u datasheet
introduction s1f70000 series epson 1 technical manual this book describes seiko epson's full lineup of power supply ics and includes a complete set of product specifications. also included are sections on quality assurance and packaging. we suggest that you use the selector guide beginning on the following page to choose the ic or ic series that most closely matches your application. then you can use the detailed product descriptions in subsequent sections to confirm device specifications and charac- teristics. please contact your local seiko epson sales representative for further information or assistance on these or other products. .com .com .com .com 4 .com u datasheet
selection guide 2 epson s1f70000 series technical manual product features package ? 6.00v positive output voltage regulator. s1f78100y2a0 ? low operating current (typ. 3.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? 5.00v positive output voltage regulator. s1f78100y2b0 ? low operating current (typ. 3.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? 4.50v positive output voltage regulator. s1f78100y2m0 ? low operating current (typ. 3.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? 4.00v positive output voltage regulator. s1f78100y2p0 ? low operating current (typ. 3.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? 3.90v positive output voltage regulator. s1f78100y2k0 ? low operating current (typ. 3.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? 3.50v positive output voltage regulator. s1f78100y2n0 ? low operating current (typ. 3.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? 3.30v positive output voltage regulator. s1f78100y2t0 ? low operating current (typ. 3.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? 3.20v positive output voltage regulator. s1f78100y2c0 ? low operating current (typ. 3.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). voltage regulator product features package ? supply voltage conversion ic. s1f76600m0b0 ? it effectively converts input voltage v dd into Cv dd or 2v dd sop4-8pin s1f76600c0b0 ? output current : max. 30ma at C5v dip-8pin ? power conversion efficiency: typ. 95% ? supply voltage conversion ic. ? it effectively converts input voltage v dd into Cv dd or 2v dd s1f76620m0a0 ? output current : max. 30ma at 5v sop4-8pin ? power conversion efficiency: typ. 95% dc/dc converter product features package ? onCchip voltage regulator. s1f76610m0b0 ? it effectively converts input voltage v dd into Cv dd /C2v dd or 2v dd /3v dd sop5-14pin s1f76610m2b0 ? output current : max. 20ma at C5v ssop2-16pin s1f76610c0b0 ? power conversion efficiency: typ. 95% dip-14pin ? three temperature gradients for lcd panel power. ? onCchip voltage regulator. s1f76540m0a0 ? it effectively converts input voltage v dd into C2v dd /C3v dd /C4v dd. ssop2-16pin ? low current consumption : typ. 130 m a at C5v, 4Ctime boosting s1f76540c0a0 ? power conversion efficiency: typ. 95% dip-16pin ? three temperature gradients for lcd panel power. ? onCchip voltage regulator. ? it effectively converts input voltage v dd into 2v dd /3v dd /4v dd. s1f76640m0a0 ? output current : max. 20ma at 5v ssop2-16pin ? power conversion efficiency: typ. 95% ? three temperature gradients for lcd panel power. dc/dc converter and voltage regulator .com .com .com .com 4 .com u datasheet
selection guide s1f70000 series epson 3 technical manual product features package ? 3.00v positive output voltage regulator. s1f78100y2d0 ? low operating current (typ. 3.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? 2.80v positive output voltage regulator. s1f78100y2r0 ? low operating current (typ. 3.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? 2.60v positive output voltage regulator. s1f78100y2l0 ? low operating current (typ. 3.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? 2.20v positive output voltage regulator. s1f78100y2f0 ? low operating current (typ. 3.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? 1.80v positive output voltage regulator. s1f78100y2g0 ? low operating current (typ. 3.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? 1.50v positive output voltage regulator. s1f78100y2h0 ? low operating current (typ. 3.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? C5.00v negative output voltage regulator. s1f79100y1b0 ? low operating current (typ. 4.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? C4.00v negative output voltage regulator. s1f79100y1p0 ? low operating current (typ. 4.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? C3.00v negative output voltage regulator. s1f79100y1d0 ? low operating current (typ. 4.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? C1.80v negative output voltage regulator. s1f79100y1g0 ? low operating current (typ. 4.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). ? C1.50v negative output voltage regulator. s1f79100y1h0 ? low operating current (typ. 4.0 m a). sot89-3pin ? input voltage stability (typ. 0.1%/v). product features package ? step-up switching regulator (from 1.5v to 5.0v). ? low operating voltage (min. 0.9v). s1f76310m1a0 ? low operating current (typ. 10 m a). sop3-8pin ? high precision voltage detection function and battery backup function. ? built-in cr oscillator circuit. ? power-on clear function. ? step-up switching regulator (from 1.5v to 3.5v). ? low operating voltage (min. 0.9v). s1f76310m1k0 ? low operating current (typ. 8 m a). sop3-8pin ? high precision voltage detection function and battery backup function. ? built-in cr oscillator circuit. ? power-on clear function. ? step-up switching regulator (from 1.5v to 3.0v). ? low operating voltage (min. 0.9v). s1f76310m1b0 ? low operating current (typ. 8 m a). sop3-8pin ? high precision voltage detection function and battery backup function. ? built-in cr oscillator circuit. ? power-on clear function. dc/dc switching regulator .com .com .com .com 4 .com u datasheet
selection guide 4 epson s1f70000 series technical manual product features package ? voltage detection (typ. 5.00v). s1f77210y1l0 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 6.0v). ? voltage detection (typ. 4.80v). s1f77210y1k0 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 5.0v). voltage detector product features package ? step-up switching regulator (from 1.5v to 2.4v). ? low operating voltage (min. 0.9v). s1f76310m1l0 ? low operating current (typ. 7 m a). sop3-8pin ? high precision voltage detection function and battery backup function. ? built-in cr oscillator circuit. ? power-on clear function. ? step-up switching regulator (from 1.5v to 2.2v). ? low operating voltage (min. 0.9v). ? low operating current. (typ. 7 m a). s1f76380m1h0 ? built-in cr oscillator circuit. sop3-8pin ? high precision voltage detection. ? output voltage response compensation. ? temperature characteristics of output voltage for lcd panel (-4.5mv/c). ? step-up switching regulator (from 1.5v to 2.4v). ? low operating voltage (min. 0.9v). ? low operating current. (typ. 7 m a). s1f76380m1l0 ? built-in cr oscillator circuit. sop3-8pin ? high precision voltage detection. ? output voltage response compensation. ? temperature characteristics of output voltage for lcd panel (-4.0mv/c). ? step-up switching regulator (from 1.5v to 3.0v). ? low operating voltage (min. 0.9v). s1f76330m1b0 ? low operating current. (typ. 5 m a). sop3-8pin ? built-in crystal oscillator circuit. ? equipped with crystal oscillator output pin. ? step-down switching regulator (from 3.3v ~ 12.0v to 3.3v). ? power off current : 1 m a s1f71100m0a0 ? frequency fixing (200khz) pwm. sop4-8pin ? soft start function. ? overcurrent protection function, low-voltage protection function. ? step-up/down switching regulator (from 2.5v ~ 12.0v to 5.0v). ? power off current : 1 m a s1f71200m0a0 ? frequency fixing (200khz) pwm. ssop2-16pin ? soft start function. ? overcurrent protection function. ? step-up/down switching regulator (from 2.5v ~ 12.0v to 3.3v). ? power off current : 1 m a s1f71100m0b0 ? frequency fixing (200khz) pwm. ssop2-16pin ? soft start function. ? overcurrent protection function. product features package ? step-up switching regulator with built-in voltage follower s1f75300m0a0 (from 2.7v ~ 5.5v to 27v). ssop1-20pin ? boosting efficiency (90%). ? low current consumption : typ. 200 m a without load s1f75300m0b0 ? step-up output voltage : max. 30v ssop1-20pin ? adjustable output voltage with the electronic volume. dc/dc switching regulators & voltage follower .com .com .com .com 4 .com u datasheet
selection guide s1f70000 series epson 5 technical manual product features package ? voltage detection (typ. 4.60v). s1f77210y120 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 5.0v). ? voltage detection (typ. 4.40v). s1f77210y1j0 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 5.0v). ? voltage detection (typ. 4.20v). s1f77210y1m0 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 5.0v). ? voltage detection (typ. 4.00v). s1f77210y1t0 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 5.0v). ? voltage detection (typ. 3.50v). s1f77210y130 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 4.0v). ? voltage detection (typ. 3.20v). s1f77210y1h0 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 4.0v). ? voltage detection (typ. 3.00v). s1f77210y1g0 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 4.0v). ? voltage detection (typ. 2.80v). s1f77210y1r0 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 3.0v). ? voltage detection (typ. 2.65v). s1f77210y1f0 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 3.0v). ? voltage detection (typ. 2.55v). s1f77210y1e0 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 3.0v). ? voltage detection (typ. 2.35v). s1f77210y1s0 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 3.0v). ? voltage detection (typ. 2.25v). s1f77210y1p0 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 3.0v). ? voltage detection (typ. 2.15v). s1f77210y1c0 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 3.0v). ? voltage detection (typ. 2.65v). s1f77210y2f0 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 3.0v). ? voltage detection (typ. 2.15v). s1f77210y2c0 ? output format: coms. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 3.0v). ? voltage detection (typ. 4.00v). s1f77200y1t0 ? output format: n-ch open drain. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 5.0v). ? voltage detection (typ. 2.65v). s1f77200y1f0 ? output format: n-ch open drain. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 3.0v). ? voltage detection (typ. 2.15v). s1f77200y1c0 ? output format: n-ch open drain. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 3.0v). ? voltage detection (typ. 1.90v). s1f77200y1n0 ? output format: n-ch open drain. sop89-3pin ? low operating power (typ. 2.0 m a, v dd = 3.0v). .com .com .com .com 4 .com u datasheet
selection guide 6 epson s1f70000 series technical manual product features package ? voltage detection (typ. 1.15v). s1f77200y1b0 ? output format: n-ch open drain. sop89-3pin ? low operating power (typ. 1.5 m a, v dd = 1.5v). ? voltage detection (typ. 1.10v). s1f77200y1y0 ? output format: n-ch open drain. sop89-3pin ? low operating power (typ. 1.5 m a, v dd = 1.5v). ? voltage detection (typ. 1.05v). s1f77200y1a0 ? output format: n-ch open drain. sop89-3pin ? low operating power (typ. 1.5 m a, v dd = 1.5v). ? voltage detection (typ. 0.95v). s1f77200y1v0 ? output format: n-ch open drain. sop89-3pin ? low operating power (typ. 1.5 m a, v dd = 1.5v). ? voltage detection (typ. 1.25v). s1f77220y2d0 ? output format: p-ch open drain. sop89-3pin ? low operating power (typ. 1.5 m a, v dd = 1.5v). .com .com .com .com 4 .com u datasheet
1. dc/dc converter .com .com .com .com 4 .com u datasheet
s1f76600 series s1f70000 series epson 1C1 technical manual s1f76600 series description the s1f76600 series is a highly efficient cmos dc/ dc converter for doubling an input voltage (from C1.5v to C8v). this power-saving ic allows portable computers and similar hand-held equipment to operate from a single power supply, even when they incorporate lsis that operate at voltages different from those of logic circuits, for example, lcd drivers and analog lsis. the s1f76600c0b0 is available in 8-pin plastic dips, and the s1f76600m0b0, in 8-pin plastic sops. features ? 95% (typ.) conversion efficiency ? two output voltages, v o , relative to v dd and v i ? 30ma maximum output current at 5v ? connecting-in-series configuration obtains a higher output voltage (v 1 =C5v, v 0 =C15v at two-in-series). ? low operating voltage ? on-chip cr oscillator ? 8-pin plastic dip and 8-pin plastic sop applications ? fixed-voltage power supplies for battery-operated equipment ? power supplies for pagers, memory cards, calculators and similar hand-held equipment ? fixed-voltage power supplies for medical equipment ? fixed-voltage power supplies for communications equipment ? uninterruptable power supplies block diagram pin assignments pin descriptions v dd osc2 v i cap1 v o cap1+ voltage converter cr oscillator osc1 pin no. pin name description 1 nc no connection 2 osc2 resistor connection. open when using external clock 3 osc1 resistor connection. clock input when using external clock 4v dd positive supply (system v cc ) 5 cap1+ positive charge-pump connection 6 cap1C negative charge-pump connection 7v o 2 multiplier output 8v i negative supply (system ground) s1f76600 series cmos dc/dc converter (voltage doubler) 1 2 3 4 s1f76600m0b0 /c0b0 nc osc2 osc1 v dd v i v o cap1 cap1+ 8 7 6 5 .com .com .com .com 4 .com u datasheet
s1f76600 series 1C2 epson s1f70000 series technical manual parameter symbol rating unit input voltage range v i C10.0 to 0.5 v output voltage range v o min. C20.0 v power dissipation p d 300 (dip) mw 150 (sop) operating temperature range t opr C40 to +85 ?c storage temperature range t stg C65 to +150 ?c soldering temperature(for 10s). see note. t sol 260 ?c specifications absolute maximum ratings note: temperatures during reflow soldering must remain within the limits set out in lsi device precautions. never use solder dip to mount s1f70000 series power supply devices. recommended operating conditions v dd = 0v, ta = C40 to +85?c unless otherwise noted parameter symbol condition rating unit min. typ. max. r osc = 1m w , c 1 /c 2 1/20, c 2 3 10 m f, C1.5 oscillator startup voltage v sta ta = C20 to +85?c v see note 1. r osc = 1m w C2.2 oscillator shutdown voltage v stp r osc = 1m w C1.5 v load resistance r l r l min w see note 2. output current i o 30.0 ma clock frequency f osc 10.0 30.0 khz cr oscillator network r osc 680 2,000 k w resistance capacitance c 1 , c 2 3.3 m f notes: 1. the recommended circuit configuration for low-voltage operation (when v i is between C1.2v and C2.2v) is shown in the following figure. note that diode d1 should have a maximum forward voltage of 0.6v with 1.0ma forward current. 2. r l min can be varied depending on the input voltage. .com .com .com .com 4 .com u datasheet
s1f76600 series s1f70000 series epson 1C3 technical manual s1f76600 series v dd = 0v, ta = C40 to +85?c unless otherwise noted parameter symbol condition rating unit min. typ. max. input voltage v i C8.0 C1.5 v output voltage v o C16.0 v multiplier current i opr r l = , r osc = 1m w 2030 m a v i = C5v quiescent current i q r l = , v i = C8v 2.0 m a clock frequency f osc r osc = 1m w , v i = C5v 16 20 24 khz output impedance r o i o = 10ma, v i = C5v 75 100 w multiplication efficiency peff i o = 5ma, v i = C5v 90 95 % osc1 input leakage current i lki v i = C8v 2.0 m a 3. r l min is a function of v i . electrical characteristics battery c l d1 c2 22 f c1 10 f r l 1m + + 8 7 6 5 1 2 3 4 1.0 5 4 3 2 1 0 1.5 2.0 input voltage (v) minimum load resistance (k ) 3.0 v sta2 v sta1 4.0 5.0 6.0 .com .com .com .com 4 .com u datasheet
s1f76600 series 1C4 epson s1f70000 series technical manual typical performance characteristics 1000 100 10 1 10 100 1000 10000 f osc [khz] r osc [k w ] v i = ?v v i = ?v v i = ?v ta = 25 c 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 ?0 ?0 0 20 40 ta [ c] f osc [khz] 60 80 100 v i = e5.0v v i = e3.0v v i = e2.0v (1) clock frequency vs. external resistance (2) clock frequency vs. ambient temperature 50 45 40 35 30 25 20 15 10 5 0 ? ? ? ? ? ? ? 0 l opr [ a ] v i [v] ta = 25 c f osc = 40khz f osc = 20khz f osc = 10khz 0 ? ?0 ?5 0 1020304050 v o [v] i o [ma] ta = 25?c v i = ?.0v (3) multiplier current vs. input voltage (4) output voltage vs. output current .com .com .com .com 4 .com u datasheet
s1f76600 series s1f70000 series epson 1C5 technical manual s1f76600 series 0 C5 C10 0102030 v o [v] i o [ma] ta = 25 c v i = e3.0v 0 e1 e2 e3 e4 e5 e6 0 2345678910 1 v o [v] i o [ma] ta = 25 c v i = e2.0v (5) output voltage vs. output current (6) output voltage vs. output current 300 200 100 0 C7 C6 C5 C4 C3 C2 C1 0 r o [ w ] v i [v] ta = 25 c i o = 7ma 300 200 100 0 ? ? ? ? ? ? ? 0 r o [ w ] v i [v] ta = 25 c i o = 10ma (7) output impedance vs. input voltage (8) output impedance vs. input voltage .com .com .com .com 4 .com u datasheet
s1f76600 series 1C6 epson s1f70000 series technical manual 100 90 80 70 60 50 40 30 20 10 0 1 10 100 1000 peff [%] f osc [khz] i o = 2ma i o = 5ma i o = 10ma i o = 20ma i o = 30ma v i = C5.0v 100 90 80 70 60 50 40 30 20 10 0 1 10 100 1000 peff [%] f osc [khz] i o = 0.5ma i o = 1.0ma i o = 2.0ma i o = 4.0ma v i = C3.0v (9) multiplication efficiency vs. (10) multiplication efficiency vs. clock frequency clock frequency 100 90 80 70 60 50 40 30 20 10 0 100 90 80 70 60 50 40 30 20 10 0 0 10 20 30 40 50 peff [%] i i [ma] i o [ma] ta = 25 c v i = e5.0v i i peff 100 90 80 70 60 50 40 30 20 10 0 100 90 80 70 60 50 40 30 20 10 0 0 5 10 15 20 25 30 peff [%] i i [ma] i o [ma] ta = 25 c v i = e3.0v i i peff (11) multiplication efficiency/input current (12) multiplication efficiency/input current vs. output current vs. output current .com .com .com .com 4 .com u datasheet
s1f76600 series s1f70000 series epson 1C7 technical manual s1f76600 series functional descriptions cr oscillator s1f76600 has a built-in cr oscillator as the internal os- cillator, and an external oscillation resistor r osc is con- nected between the pins osc1 and osc2 before opera- tion. osc1 osc2 r osc (note 1) note 1 since the oscillation frequency varies with wiring ca- pacitance, make the cables between the terminals osc1 and osc2 and r osc as short as possible. when setting the external resistor r osc , find r osc suit- able for f osc that brings about the maximum efficiency from characteristics graph (9) and (10). the relations between r osc and f osc in characteristics graph (1) are expressed approximately with the following formula as 100 90 80 70 60 50 40 30 20 10 0 40 36 32 28 24 20 16 12 8 4 0 012345678910 peff [%] i i [ma] i o [ma] ta = 25 c v i = e2.0v i i peff (13) multiplication efficiency/input current vs. output current voltage multiplier the voltage multiplier uses the clock signal from the oscillator to double the input voltage. this requires two external capacitorsa charge-pump capacitor, c1, be- tween cap1+ and cap1C, and a smoothing capacitor, c2, between v i and v o . 5 v c1 10 f c2 10 f v o1 = e10v (2v i ) v dd = 0 v v i = e5 v 1m + + 8 7 6 5 1 2 3 4 doubled potential levels v cc (+5v) (C5v) gnd v o = (2v i ) = C10 v v i = C5 v v dd = 0 v far as the straight portion (500k w < r osc < 2m w ) is concerned: r osc = a ? (1/f osc ) (a : constant, when gnd is 0v and v dd is 5v, a is approximately 2.0 10 10 (i/f).) so, the r osc value can be obtained from this formula. (recommended oscillation frequency : 10khz to 30khz (r osc : 2m w to 680k w )) when the external clock operates, make the pin osc2 open as shown below and input the 50% duty of the ex- ternal clock from the pin osc1. osc1 osc2 external clock open .com .com .com .com 4 .com u datasheet
s1f76600 series 1C8 epson s1f70000 series technical manual typical applications parallel connection connecting two or more chips in parallel reduces the output impedance by 1/ n , where n is the number of de- vices used. 5 v c1 10 f c2 10 f v dd = 0 v v i = e5 v v o = e10 v 1m + + 8 7 6 5 1 2 3 4 c1 10 f 1m + 8 7 6 5 1 2 3 4 serial connection connecting two or more chips in series obtains a higher output voltage than can be obtained using a parallel connection, however, this also raises the output imped- ance. potential levels 5 v c1 10 f c2 10 f v dd = 0 v v i = e5 v v o ' = e15 v v o = e10 v = v i ' v dd ' = v i = e5 1m + + 8 7 6 5 1 2 3 4 c1 10 f c2 10 f 1m + + 8 7 6 5 1 2 3 4 v dd (0 v) v i (e5 v) v o (e10 v) primary stage secondary stage v dd ' v i ' v o ' (e15 v) .com .com .com .com 4 .com u datasheet
s1f76600 series s1f70000 series epson 1C9 technical manual s1f76600 series positive voltage conversion diodes can be added to a circuit connected in parallel to make a negative voltage positive. 5 v c2 10 f v dd = 0 v v o ' = 3.8 v v i = ? v 1m + c1 10 f + 8 7 6 5 1 2 3 4 simultaneous voltage conversion combining a multiplier circuit with a positive voltage conversion circuit generates both C10 and 3.8 v outputs from a single input. potential levels 5 v c2 10 f v dd = 0 v v o2 = 3.8 v v o1 = ?0 v v i = ? v 1m + + c3 c4 10 f 10 f + 8 7 6 5 1 2 3 4 c1 10 f + v o2 = 3.8 v v o1 = ?0 v v dd = 0 v v i = ? v .com .com .com .com 4 .com u datasheet
s1f76620 series 1C10 epson s1f70000 series technical manual description s1f76620 is a high efficiency and low power consump- tion cmos dc/dc converter. it enables to obtain 2 times step-up output (3.0 to 16v) from input voltage (1.5 to 8v). also, s1f76620 enable to drive ics (liquid crystal driver, analog ic, etc.), which require another power supply in addition to logic main power supply, with a single power supply, and it is suitable for micro power ic of hand-held computers, handy devices, etc. due to its small power consumption. features (1) high efficiency and low power consumption cmos dc/dc converter (2) easy voltage conversion from input voltage v dd (5v) to positive potential side or negative potential side ? input v dd (5v) to output Cv dd (C5v), 2v dd (10v) (3) output current : max. 30ma (v dd = 5v) (4) power conversion efficiency : typ. 95% (5) possibility of series connection (in 2-piece use, v dd = 5v, v o = 15v) (6) low voltage operation : suitable for battery drive (7) built-in cr oscillator (8) sop4-8pin s1f76620m0a0 bare chip s1f76620d0a0 block diagram v dd v o cap1+ cap1 osc1 osc2 p off gnd voltage conversion circuit cr oscillator s1f76620 series cmos dc/dc converter (voltage doubler) .com .com .com .com 4 .com u datasheet
s1f76620 series s1f70000 series epson 1C11 technical manual s1f76620 series pin descriptions pin assignments p off gnd osc1 osc2 1 2 3 4 8 7 6 5 v o cap1+ cap1 v dd pin assignments of sop4-8pin pin descriptions description input pin for power off control. power pin. (minus side, system gnd) oscillation resistor connection pin. works as the clock input pin when the external clock operates. oscillation resistor connection pin. opens when the external clock operates. power pin. (plus side, system v cc ) pump up capacitor minus side connection pin for 2 times step-up. pump up capacitor plus side connection pin for 2 times step-up. output pin at the time of 2 times step-up. pin name p off gnd (v ss ) osc1 osc2 v dd cap1C cap1+ v o pin no. 1 2 3 4 5 6 7 8 .com .com .com .com 4 .com u datasheet
s1f76620 series 1C12 epson s1f70000 series technical manual pad center coordinates (s1f76620d0a0) chip external shape y x + (0,0) 2.60mm 2.30mm pad assignment pad aperture : 100 m m 100 m m chip thickness : 400 m m note do not bond the nc pad. pad no. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 pad name (nc) (nc) p off (nc) (nc) (nc) gnd (v ss ) osc1 osc2 v dd cap1C cap1+ (nc) v o (nc) (nc) (nc) pad center coordinates x ( m m) C984 984 pad center coordinates y ( m m) 1096 788 580 390 96 C218 C510 C802 C1094 C1134 C892 C514 182 372 750 942 1134 description input pin for power off control power input pin (minus side) oscillation resistor connection pin oscillation resistor connection pin power input pin (plus side) pump up capacitor minus side connection pin for 2 times step-up pump up capacitor plus side connection pin for 2 times step-up 2 times step-up output pin .com .com .com .com 4 .com u datasheet
s1f76620 series s1f70000 series epson 1C13 technical manual s1f76620 series functional descriptions cr oscillator s1f76620 has a built-in cr oscillator as the internal os- cillator, and an external oscillation resistor r osc is con- nected between the pins osc1 and osc2 before opera- tion. osc1 osc2 r osc (note 1) note 1 since the oscillation frequency varies with wiring ca- pacitance, make the cables between the terminals osc1 and osc2 and r osc as short as possible. when setting the external resistor r osc , find r osc suit- able for f osc that brings about the maximum efficiency from characteristics graph (9) and (10). the relations between r osc and f osc in characteristics graph (1) are expressed approximately with the following formula as far as the straight portion (500k w < r osc < 2m w ) is concerned: r osc = a ? (1/f osc ) (a : constant, when gnd is 0v and v dd is 5v, a is approximately 2.0 10 10 (i/f).) so, the r osc value can be obtained from this formula. (recommended oscillation frequency : 10khz to 30khz (r osc : 2m w to 680k w )) when the external clock operates, make the pin osc2 open as shown below and input the 50% duty of the ex- ternal clock from the pin osc1. osc1 osc2 external clock open voltage conversion circuit the voltage conversion circuit uses clocks generated in the cr oscillator to double the input supply voltage v dd . in case of 2 times step-up, 2 times voltage (2v dd ) of the input voltage is obtained from the v o pin when a pump up capacitor is connected between cap1+ and cap2C and a smoothing capacitor is connected be- tween v dd and v o outside. when gnd is 0 and v dd is 5, the relations between input/output and voltage are as shown below: cap1=2v dd =10v v dd =5v g nd =0v .com .com .com .com 4 .com u datasheet
s1f76620 series 1C14 epson s1f70000 series technical manual electrical characteristics absolute maximum ratings (ta = C40 to +85 c) note 1 under the conditions exceeding the above absolute maximum ratings, the ic may result in a permanent destruction. an operation for a long period under the conditions of the above absolute maximum ratings may deteriorate the reliability remarkably. note 2 all voltage values are based on gnd being 0v. max. 10.0 v dd + 0.5 20 v dd + 0.5 v o + 0.5 300 150 85 150 min. C0.5 C0.5 C0.5 C0.5 C40 C65 parameter input supply voltage input pin voltage output voltage output supply voltage output pin voltage allowable loss operating temperature storage temperature symbol v in v i v o v cap+ v capC p d topr tstg unit v v v v v mw c c remarks osc1, osc2 cap+ capC dip-8pin sop-8pin rating .com .com .com .com 4 .com u datasheet
s1f76620 series s1f70000 series epson 1C15 technical manual s1f76620 series recommended operating conditions (ta = C40 to +85 c) note 1 all voltages are based on the gnd being 0v. note 2 the figure below shows the recommended circuit for operation with low voltages (v dd = 1.5 to 2.2v): p off r l c l * d 1 c 1 + + c 2 gnd osc1 osc2 * (di (vf (if=1ma) is recommended to be not more than 0.6v.) v o cap1+ cap1 v dd 1 2 3 4 8 7 6 5 recommended circuit note 3 r lmin varies with input voltage. see characteristics graph (15). max. 1.5 30 30 2000 parameter step-up start operation step-up stop voltage output load resistance output load current oscillation frequency external resistor for oscillation step-up capacitor symbol v sta1 v sta2 v stp r l i o f osc r osc c 1 , c 2 rating min. 1.5 2.2 r lmin see note 3. 10 680 3.3 unit v v v w ma khz k w m f remarks r osc = 1m w c 2 3 10 m f c l /c 2 3 1/20 see note 2. r osc = 1m w r osc = 1m w .com .com .com .com 4 .com u datasheet
s1f76620 series 1C16 epson s1f70000 series technical manual electrical characteristics (v dd = 5v, ta = C40 to +85 c) parameter input supply voltage output voltage step-up circuit current consumption static current oscillation frequency output impedance step-up power conver- sion efficiency input leak current symbol v dd v o i opr i q f osc r o p eff i lki rating min. 1.8 16 90 typ. 35 20 85 95 max. 8.0 16.0 50 1.0 24 130 1.0 unit v v m a m a khz w % m a remarks r osc = 1m w r osc = 1m w i o = 10ma i o = 5ma osc1 pin note 1 all voltage values are based on gnd being 0v. .com .com .com .com 4 .com u datasheet
s1f76620 series s1f70000 series epson 1C17 technical manual s1f76620 series characteristics graph (1) oscillation frequency vs. external resistance for oscillation (2) oscillation frequency vs. temperature (3) step-up circuit current consumption vs. input current (4) output voltage (v o ) vs. output current 1 ?0 ?0 0 20 40 60 80 100 30 28 26 24 22 20 18 16 14 12 10 f osc [khz] ta [ c] v dd =5v v dd =2v v dd =3v 10 100 1000 10000 ta=25 c v dd =5v v dd =3v v dd =2v r osc [k w ] f osc [khz] 1000 100 10 1 0 5 10 15 20 25 30 10 9 8 7 6 5 4 3 2 1 0 v o [v] i o [ma] ta=25 c v dd =5v c 1 =c 2 =10 f 0123456 100 80 60 40 20 0 i opr1 [ a] v dd [v] ta=25 c c 1 =c 2 =10 f f osc =40khz f osc =20khz f osc =10khz .com .com .com .com 4 .com u datasheet
s1f76620 series 1C18 epson s1f70000 series technical manual (5) output voltage (v o ) vs. output current 2 (6) output voltage (v o ) vs. output current 3 (7) output impedance vs. input current 1 (8) output impedance vs. input voltage 2 4 3 2 1 0 6 5 4 3 2 1 0 012345678910 0 5 10 15 20 v o [v] i o [ma] i o [ma] v o [v] ta=25 c v dd =3v c 1 =c 2 =10 f ta=25 c v dd =2v c 1 =c 2 =10 f 300 250 200 150 100 50 0 0123456 v dd [v] r o [ w ] ta=25 c i o =10ma 300 250 200 150 100 50 0 0123456 v dd [v] r o [ w ] ta=25 c i o =5ma .com .com .com .com 4 .com u datasheet
s1f76620 series s1f70000 series epson 1C19 technical manual s1f76620 series (9) step-up power conversion efficiency vs. output current 1 input current vs. output current 1 (11) step-up power conversion efficiency vs. output current 3 input current vs. output current 3 . (12) step-up power conversion efficiency vs. oscillation frequency 1 100 90 80 70 60 50 40 30 20 10 0 100 90 80 70 60 50 40 30 20 10 0 0 5 10 15 20 i o [ma] peff[%] i dd [ma] ta=25 c v dd =3v c 1 =c 2 =10 f 100 90 80 70 60 50 40 30 20 10 0 150 120 90 60 30 0 0 102030 i o [ma] peff[%] i dd [ma] ta=25 c v dd =5v c 1 =c 2 =10 f 100 90 80 70 60 50 40 30 20 10 0 100 90 80 70 60 50 50 40 30 20 10 0 1 10 100 1000 012345678910 i o =5ma i o =2ma i o =20ma i o =10ma focs[khz] i o [ma] peff[%] peff[%] i dd [ma] ta=25 c v dd =5v c 1 =c 2 =10 f ta=25 c v dd =5v c1=c2=10 f (10) step-up power conversion efficiency vs. output current 2 input current vs. output current 2 .com .com .com .com 4 .com u datasheet
s1f76620 series 1C20 epson s1f70000 series technical manual (13) step-up power conversion efficiency vs. oscillation frequency 2 (14) step-up power conversion efficiency vs. oscillation frequency 3 (15) step-up start voltage (1) vs. load resistance 100 90 80 70 60 50 1 10 100 1000 i o =0.5ma i o =1ma i o =5ma i o =2ma focs[khz] peff[%] ta=25 c v dd =2v c 1 =c 2 =10 f 100 90 80 70 60 50 1 10 100 1000 focs[khz] peff[%] i o =1ma i o =2ma i o =10ma i o =5ma ta=25 c v dd =3v c 1 =c 2 =10 f 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 100 1000 10000 100000 r l [ w ] v sta1 [v] ta=25 c c 1 =c 2 =10 f r osc =1m w .com .com .com .com 4 .com u datasheet
s1f76620 series s1f70000 series epson 1C21 technical manual s1f76620 series example of reference external connection 2 times step-up 2 times step-up output of v o (2 v dd ) is obtained from the circuit shown in figure 1. p off 2 v i v i + + gnd osc1 osc2 v o cap1+ cap1 v dd 1 2 3 4 8 7 6 5 figure 1 2 time step-up operation parallel connection it is possible to make the output impedance (r o ) small when several pieces of the circuit shown in figure 1 are connected. parallel connection of n circuits reduces r o to 1/n approximately. one piece of the smoothing capacitor c 2 can be commonly used. p off v i + _ + _ gnd osc1 osc2 v o cap1+ cap1 v dd 1 2 3 4 8 7 + _ 6 5 p off gnd osc1 osc2 v o cap1+ cap1 v dd 1 2 3 4 8 7 6 5 figure 2 parallel connection .com .com .com .com 4 .com u datasheet
s1f76620 series 1C22 epson s1f70000 series technical manual series connection when s1f76620 is connected in series (v dd and v o in the previous stage are connected to gnd and v dd in the next stage respectively), the output voltage can be increased more. but the series connection makes the output impedance high. figure 3 shows an example of the series connection to get v o = 15v from v dd = 5v. p off v i + + gnd osc1 osc2 v o cap1+ cap1 v dd 1 2 3 4 8 7 + + 6 5 p off gnd osc1 osc2 v o vo'=3 v i vo=2 v i cap1+ cap1 v dd 1 2 3 4 6 5 8 7 figure 3 series connection v dd ' v o =10v v o '=15v v dd (5v) gnd(0v) gnd' first stage next stage figure 4 power supply relations in series connection (1) note when the input voltage in the next stage is as per the specification (v dd -gnd 8v) in a series connection, the output in the first stage (v o -v dd ) can be used as the input in the next stage (v dd -gnd). (see figure 5.) v dd ' v o =4v v o '=8v v dd (2v) gnd(0v) gnd' first stage next stage figure 5 power supply relations in series connection (2) .com .com .com .com 4 .com u datasheet
s1f76620 series s1f70000 series epson 1C23 technical manual s1f76620 series negative voltage conversion s1f76620 can boost input voltage to twice on the positive potential side by using the circuit shown in figure 6. but the output voltage drops by the forward voltage v f of the diode. when gnd is 0v, v dd is 5v and v f is 0.6v as shown in figure 6 for example, v o is calculated as follows: v o = C5v + 2 0.6v = C3.8v. p off v o ' + gnd osc1 osc2 v o cap1+ cap1 v dd 1 2 3 4 8 7 5 + 6 figure 6 negative voltage conversion negative voltage conversion + positive voltage conversion when the 3 times step-up operation shown in figure 1 and the positive voltage conversion in figure 6 are combined, the circuit shown in figure 7 can be formed and 10v and C3.8v can be obtained from the input 5v. however, the output impedance is higher than in case of connection of either one only (the negative voltage conversion or the positive voltage conversion). p off v o2 v o1 gnd osc1 osc2 v o v dd 2 v i v ss ? i +2 v f v o2 v i cap1+ cap1 v dd 1 2 3 4 8 7 5 6 + + potential relations diagram figure 7 negative voltage conversion + positive voltage conversion .com .com .com .com 4 .com u datasheet
s1f76620 series 1C24 epson s1f70000 series technical manual measurement circuit p off v i + + gnd osc1 c 2 v o i o r l c 1 r osc i opr osc2 v o cap1+ cap1 v dd 1 2 3 a a 4 8 7 6 5 v v .com .com .com .com 4 .com u datasheet
s1f76620 series s1f70000 series epson 1C25 technical manual s1f76620 series mechanical data s1f76620m0a0 sop4-8pin 85 14 index d e he q e b a 1 a 2 a q 3 q 2 l c r r 1 l 1 l 2 * for reference symbol e d 1 a a 1 a 2 e b c q l l 1 l 2 h e d q 2 q 3 r r 1 dimension in milimeters min. 4.8 0.25 0.05 6.4 4.8 nom. 5 1.75 0.15 1.6 1.27 0.35 0.15 0.55 6.8 5 max. 5.2 0.45 0.25 7.2 5.2 dimension in inches * min. (0.189) (0.010) (0.002) (0.252) (0.189) nom. (0.197) (0.069) (0.006) (0.063) (0.050) (0.014) (0.006) (0.022) (0.268) (0.197) max. (0.204) (0.017) (0.009) (0.283) (0.204) reference note this drawing is subject to change without notice for improvement. .com .com .com .com 4 .com u datasheet
2. dc/dc converter & voltage regulator .com .com .com .com 4 .com u datasheet
s1f76610 series s1f70000 series epson 2C1 technical manual s1f76610 series description the s1f76610 series is a highly effecient cmos dc/ dc converter for doubling or tripling an input voltage. it incorporates an on-chip voltage regulator to ensure stable output at the specified voltage. the s1f76610 series offers a choice of three, optional temperature gradients for applications such as lcd panel power supplies. the s1f76610c0b0 is available in 14-pin plastic dips, the s1f76610m0b0, in 14-pin plastic sops, and the s1f76610m2b0 in 16-pin plastic ssops. features ? 95% (typ.) conversion efficiency ? up to four output voltages, v o , relative to the input voltage, v i ? on-chip voltage regulator ? 20ma maximum output current at v i = C5v ? three temperature gradients : C0.1, C0.4 and C0.6%/ c v dd voltage multiplier (1) voltage multiplier (2) cr oscilator reference voltge generator temperature gradient selector voltage regulator tc1 tc2 rv p off v reg v o v i osc2 osc1 cap1+ cap1 cap2+ cap2 multiplication stage stabilization stage block diagram s1f76610 series cmos dc/dc converter (voltage doubler / tripler) & voltage regulator ? external shut-down control ?2 m a maximum output current when shut-down ? two-in-series configuration doubles negative output voltage. ? on-chip rc oscillator ? s1f76610c0b0 ...... plastic dip-14 pin s1f76610m0b0 ...... plastic sop5-14 pin s1f76610m2b0 ...... plastic ssop2-16 pin applications ? power supplies for lcd panels ? fixed-voltage power supplies for battery-operated equipment ? power supplies for pagers, memory cards, calculators and similar hand-held equipment ? fixed-voltage power supplies for medical equipment ? fixed-voltage power supplies for communications equipment ? power supplies for microcomputers ? uninterruptable power supplies .com .com .com .com 4 .com u datasheet
s1f76610 series 2C2 epson s1f70000 series technical manual pin assignments pin descriptions s1f76610c0b0/m0b0 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 cap+ cap cap2+ cap2 tc1 tc2 v i 14 13 12 11 10 9 8 v dd osc1 osc2 p off rv v reg v o cap+ cap nc cap2+ cap2 tc1 tc2 v i v dd osc1 nc osc2 p off rv v reg v o 16 15 14 13 12 11 10 9 s1f76610m2b0 s1f76610c0b0/m0b0 description positive charge-pump connection for 2 multiplier negative charge-pump connection for 2 multiplier positive charge-pump connection for 3 multiplier negative charge-pump connection for 3 multiplier or 2 multiplier output pin no. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 pin name cap1+ cap1C cap2+ cap2C tc1 tc2 v i v o v reg r v p off osc2 osc1 v dd temperature gradient selects negative supply (system ground) 3 multiplier output voltage regulator output voltage regulator output adjust voltage regulator output on/off control resistor connection. open when using external clock resistor connection. clock input when using external clock positive supply (system v cc ) .com .com .com .com 4 .com u datasheet
s1f76610 series s1f70000 series epson 2C3 technical manual s1f76610 series specifications absolute maximum ratings notes 1. using the ic under conditions exceeding the aforementioned absolute maximum ratings may lead to permanent destruction of the ic. also, if an ic is operated at the absolute maximum ratings for a longer period of time, its functional reliability may be substantially deteriorated. 2. all the voltage ratings are based on v dd = 0v. 3. the output terminals (v o ,v reg ) are meant to output boosted voltage or stabilized boosted voltage. they, therefore, are not the terminals to apply an external voltage. in case the using specifications unavoidably call for application of an external voltag e, keep such voltage below the voltage ratings given above. reconmmended operating conditions v dd = 0v, ta = C40 to +85?c unless otherwise noted notes 1. the recommended circuit configuration for low-valtage operation (when v i is between C1.2v and C2.2v) is shown in the following figure. note that diode d1 should have a maximum forward voltage of 0.6v with 1.0ma forward current. 2. r l min can be varied depending on the input voltage. rating parameter symbol conditions oscillator startup voltage oscillator shutdown voltage load resistance output current clock frequency cr oscillator network resistance capacitance stabilization voltage sensing resis- tance v sta v stp r l i o f osc r osc c 1 , c 2 , c 3 r rv r osc =1m w c 3 = 10 m f, c l /c 3 1/20, ta = C20 to +85?c. see note 1. r osc = 1m w r osc = 1m w min. C1.8 r lmin. see note 2. 10.0 680 3.3 100 typ. max. C1.8 C2.2 20.0 30.0 2,000 1,000 unit v v w ma khz k w m f k w n = 2: boosting to a double voltage n = 3: boosting to a triple voltage osc1, osc2, p off tc1, tc2, rv v o note 3) v reg note 3) plastic package at leads parameter codes ratings units remarks input supply voltage input terminal voltage output voltage allowable dissipation working temperature storage temperature soldering temperature and time v i C v dd v i C v dd v o C v dd p d topr tstg tsol C20/n to v dd + 0.3 v i C 0.3 to v dd + 0.3 v o C 0.3 to v dd + 0.3 C20 to v dd + 0.3 v o to v dd + 0.3 max. 300 C40 to +85 C55 to +150 260 ? 10 v v v v v mw c c c ? s .com .com .com .com 4 .com u datasheet
s1f76610 series 2C4 epson s1f70000 series technical manual 3. r lmin is a function of v 1 electrical characteristics v dd = 0v, v 1 = C5v, ta = C40 to +85 c unless otherwise noted c1 10 f c2 10 f 1 2 3 4 5 6 7 14 13 12 11 10 9 8 r osc c l r l 1m c3 22 f d1 + + + 5 4 3 2 1 0 1 input voltage (v) minimum load resistance (k ) 6 5 4 3 2 1.5 v sta2 v sta1 voltage tripler voltage doubler symbol parameter conditions input voltage output voltage regulator voltage stabilization circuit operating voltage multiplier current stabilization current quiescent current clock frequency v i v o v reg v o i opr1 i opr2 i q f osc r l = , r rv = 1m w , v o = C18v r l = , r osc = 1m w r l = , r rv = 1m w , v o = C15v tc2 = tc1 = v o , r l = r osc = 1m w rating min. C6.0 C18.0 C18.0 C18.0 16.0 typ. 40 5.0 20.0 max. C1.8 C2.6 C3.2 80 12.0 2.0 24.0 unit v v v v m a m a m a khz .com .com .com .com 4 .com u datasheet
s1f76610 series s1f70000 series epson 2C5 technical manual s1f76610 series unit w % %/v w w v %/?c m a parameter output impedance multiplication efficiency stabilization output voltage differential stabilization output load differential stabilization output saturation resistance reference voltage temperature gradient p off , tc1, tc2, osc1, and rv input leakage current symbol r o peff r sat v rv c t i lki d v reg d i o conditions i o = 10ma i o = 5ma d v reg d v o v reg v o = C18 to C8v, v reg = C8v, r l = , ta = 25?c v o = C15v, v reg = C8v, ta = 25?c, i o = 0 to 10 m a, tc1 = v dd , tc2 = v o r sat = d (v reg C v o )/ d i o , i o = 0 to 10 m a, r v = v dd , ta = 25?c tc2 = tc1 = v o , ta = 25?c tc2 = v dd , tc1 = v o , ta = 25?c see note. rating min. 90.0 C2.3 C1.7 C1.1 C0.25 C0.5 C0.7 typ. 150 95.0 0.2 5.0 8.0 C1.5 C1.3 C0.9 C0.1 C0.4 C0.6 max. 200 C1.0 C1.1 C0.8 C0.01 C0.3 C0.5 2.0 rc2 = v o , tc1 = v dd , ta = 25?c note |v reg (50 c)| C |v reg (0 c)| 50 c C 0 c 100 |v reg (25 c)| c t = .com .com .com .com 4 .com u datasheet
s1f76610 series 2C6 epson s1f70000 series technical manual typical performance characteristics 1000 100 10 1 10 100 1000 10000 r osc [k w ] f osc [khz] v i = ?v v i = ?v v i = ?v ta = 25 c 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 ?0 ?0 0 20 40 60 80 100 ta [ c] f osc [khz] v i = ?.0v v i = ?.0v v i = ?.0v (1) clock frequency vs. external resistance (2) clock frequency vs. ambient temperature 150 100 50 0 ? ? ? ? ? ? ? 0 v i [v] i opr [ a] f osc = 40khz f osc = 20khz f osc = 10khz ta = 25 c 0 ? ?0 ?5 0 10203040 i o [ma] v o [v] ta = 25 c v i = ?.0v 2 multiplier 3 multiplier (3) multiplier current vs. input voltage (4) output voltage vs. output current .com .com .com .com 4 .com u datasheet
s1f76610 series s1f70000 series epson 2C7 technical manual s1f76610 series 0 ? ?0 ?5 0 102030 i o [ma] vo [v] 2 multiplier 3 multiplier ta = 25 c v i = ?.0v i o [ma] v o [v] 0 012345678910 ? ? ? ? ? ? ta = 25 c v i = ?.0v 2 multiplier 3 multiplier (5) output voltage vs. output current (6) output voltage vs. output current 100 90 80 70 60 50 40 30 20 10 0 100 90 80 70 60 50 40 30 20 10 0 0 1020304050 i o [ma] i i [ma] peff [%] 3 multiplier i i ta = 25 c v i = ?.0v 2 multiplier peff 3 multiplier peff 2 multiplier i i 0 5 10 15 20 25 30 i o [ma] 60 54 48 42 36 30 24 18 12 6 0 i i [ma] 100 90 80 70 60 50 40 30 20 10 0 peff [%] ta = 25 c v i = ?.0v 3 multiplier i i 3 multiplier peff 2 multiplier peff 2 multiplier i i (7) multiplication efficiency/input current (8) multiplication efficiency/input current vs. output current vs. output current .com .com .com .com 4 .com u datasheet
s1f76610 series 2C8 epson s1f70000 series technical manual 012345678910 i o [ma] i i [ma] 100 90 80 70 60 50 40 30 20 10 0 40 36 32 28 24 20 16 12 8 4 0 peff [%] ta = 25 c v i = ?.0v 2 multiplier peff 3 multiplier peff 3 multiplier i i 2 multiplier i i 500 400 300 200 100 0 ? ? ? ? ? ? ? 0 v i [v] r o [ w ] ta = 25 c i o = 6ma 3 multiplier 2 multiplier (9) multiplication efficiency/input current (10) output impedance vs. input voltage vs. output current ? ? ? ? ? ? ? 0 v i [v] 500 400 300 200 100 0 r o [ w ] 3 multiplier ta = 25 c i o = 10ma 2 multiplier 100 90 80 70 60 50 1 10 100 1000 f osc [khz] peff [%] i o = 2ma i o = 5ma i o = 10ma i o = 20ma i o = 30ma ta = 25 c v i = ?.0v (11) output impedance vs. input voltage (12) multiplication efficiency vs. clock frequency .com .com .com .com 4 .com u datasheet
s1f76610 series s1f70000 series epson 2C9 technical manual s1f76610 series 1 10 100 1000 f osc [khz] 100 90 80 70 60 50 peff [%] i o = 0.5ma i o = 1.0ma i o = 2.0ma i o = 4.0ma ta = 25 c v i = ?3.0v v o = ?5v ?.850 ?.900 ?.950 ?.000 0.0001 0.0010 0.0100 0.1000 ta = 25 c v reg [v] i o [v] (13) multiplication efficiency vs. clock frequency (14) output voltage vs. output current ?.850 ?.900 ?.950 ?.000 0.0001 0.0010 0.0100 0.1000 v reg [v] i o [v] v o = ?v ta = 25 c ?.850 ?.900 ?.950 ?.000 v reg [v] 0.0001 0.0010 0.0100 0.1000 i o [v] v o = ?v ta = 25 c (15) output voltage vs. output current (16) output voltage vs. output current .com .com .com .com 4 .com u datasheet
s1f76610 series 2C10 epson s1f70000 series technical manual 0 5 10 15 20 0.30 0.25 0.20 0.15 0.10 0.05 0.00 ta = 25 c v o = ?v v o = ?0v v o = ?5v i o [ma] |v reg -v o | [v] 50 0 ?0 ?0 ?0 0 20 40 60 80 100 ct0 ta [ c] 100 |v reg ( c)|-|v reg (25 c)|/|v reg (25 c)| [%] ct1 ct2 (17) regulator voltage vs. output current (18) regulator output stability ratio vs. ambient temperature temperature gradient control the s1f7661c0b0 offers a choice of three temperature gradients which can be used to adjust the voltage regu- lator output in applications such as power supplies for driving lcds. notes 1. the definition of low for p off differs from that for tc1 and tc2. 2. the temperature gradient affects the voltage between v dd and v reg . p off 1 (v dd ) 1 (v dd ) 1 (v dd ) 1 (v dd ) 0 (v i ) 0 (v i ) 0 (v i ) 0 (v i ) tc2 see note 1. low (v o ) low (v o ) high (v dd ) high (v dd ) low (v o ) low (v o ) high (v dd ) high (v dd ) tc1 low (v o ) high (v dd ) low (v o ) high (v dd ) low (v o ) high (v dd ) low (v o ) high (v dd ) C0.4 C0.1 C0.6 C0.6 temperature gradient (%/?c) see note 2. voltage regulator output cr osciliator remarks on on on on off (high impedance) off (high impedance) off (high impedance) off (high impedance) on on on off off off off off serial connection multiplier operational .com .com .com .com 4 .com u datasheet
s1f76610 series s1f70000 series epson 2C11 technical manual s1f76610 series functional descriptions cr oscillator the on-chip cr oscillator network frequency is deter- mined by the external resistor, r osc , connected be- tween osc1 and osc2. this oscillator can be disabled in favor of an external clock by leaving osc2 open and applying an external clock signal to osc1. osc1 oscillator external clock external clock signal r osc osc2 osc1 osc2 reference volatge generator and voltage regulator the reference voltage generator supplies a reference voltage to the voltage regulator to control the output. this voltage can be switched on and off. v dd v reg r rv = 100 k to 1 m rv p off control signal voltage multiplier the voltage multiplier uses the clock signal from the oscillator to double or triple the input voltage. this re- quires three external capacitorsCtwo charge-pump ca- pacitors between cap1+ and cap1C and cap2+ and cap2C, respectively, and a smoothing capacitor be- tween v i and v o . c4 r1 r2 + 10 f v reg = ? v v i = ? v r rv 100 k to 1 m r osc 1 m c1 + 10 f c2 5 v + 10 f c3 + 10 f v o = ?5 v v dd = 0 v 14 13 12 11 10 9 8 1 2 3 4 5 6 7 double voltage potential levels v cc (+5v) gnd (?v) v dd = 0 v v i = ? v v cap2 ?= 2v i = ?0 v tripled voltage potential levels v dd = 0 v v i = ? v v o = 3v i = ?5 v .com .com .com .com 4 .com u datasheet
s1f76610 series 2C12 epson s1f70000 series technical manual typical applications voltage tripler with regulator the following figure shows the circuit required to triple the input voltage, regulate the result and add a tempera- ture gradient of C0.4%/ c. note that the high input im- pedance of rv requires appropriate noise countermea- sures. c4 r1 r2 + 10 f v reg = ? v =v rv v i = ? v r rv 100 k to 1 m r osc 1 m c1 + 10 f c2 5 v + 10 f c3 + 10 f v o = ?5 v v dd = 0 v 14 13 12 11 10 9 8 1 2 3 4 5 6 7 r rv r 1 converting a voltage tripler to a voltage doubler to convert this curcuit to a voltage doubler, remove ca- pacitor c2 and short circuit cap2C to v o . v i = ? v r osc 1 m c1 + 10 f c2 5 v + 10 f c3 + 10 f v o = ?5 v v dd = 0 v 14 13 12 11 10 9 8 1 2 3 4 5 6 7 parallel connection connecting two or more chips in parallel reduces the output impedance by 1/ n , where n is the number of de- vices used. only the single output smoothing capacitor, c3, is re- v dd = 0 v v i = ? v v o = ?5 v v reg = ?0 v 5 v c1 10 f r osc 1 m r osc 1 m + c2 10 f + c1 10 f + c2 10 f + c4 10 f r rv 100 k to 1 m + c3 10 f + 1 2 3 4 5 6 7 14 13 12 11 10 9 8 1 2 3 4 5 6 7 14 13 12 11 10 9 8 quired when any number of devices are connected in parallel. also, the voltage regulator in one chip is suffi- cient to regulate the combined output. .com .com .com .com 4 .com u datasheet
s1f76610 series s1f70000 series epson 2C13 technical manual s1f76610 series serial connection connecting two or more chips in series obtains a higher output voltage than can be obtained using a parallel in case of series connections, when connecting loads between the first stage v dd (or other potential of the second stage v dd or up) and the second stage v reg as shown in fig. 2-13, be cautions about the following point. * when normal output is not occurring at the v reg ter- minal such as at times of starting up or when turning the v reg off by p off signals, if current flows into the second stage v reg terminal through the load from connection, however, this also raises the output imped- ance. the first stage v dd (or other potential of the second stage v dd or up) to cause a voltage exceeding the absolute maximum rating for the second stage v dd at the v reg terminal, normal operation of the ic may be hampered. consequently, when making a series connection, insert a diode d1 between the second stage v i and v reg as shown in fig. 2-13 so that a voltage exceeding the second stage v dd or up may not be applied to the v reg terminal. positive voltage conversion adding diodes converts a negative voltage to a positive one. to convert the voltage tripler shown earlier to a voltage doubler, remove c2 and d2, and short circuit d3. small schottky diodes are recommended for all these diodes. the resulting voltage is lowered by v f , the voltage drop in the forward direction for each diode used. for ex- ample, if v dd = 0v, v i = C5v, and v f = 0.6v, the re- sulting voltages would be as follows. ? for a voltage tripler, v o = 10 C (3 0.6) = 8.2v ? for a voltage doubler, v o = 5 C (2 0.6) = 3.8v 10 f 1m 10 f 10 f + + v dd = 0v v o = ?0v v reg ' = ?5v v dd ' = v i = ?v d1 v i = ?v 5v + 10 f + + 1 2 3 4 5 6 7 14 13 12 11 10 9 8 1 2 3 4 5 6 7 14 13 12 11 10 9 8 10 f + 10 f 100k 1m to load v o = ?0v= v i v i = ? v v dd = 0 v v o = 8.2 v c3 10 f + c2 10 f + c1 10 f + r osc 1 m d1 d2 5 v d3 1 2 3 4 5 6 7 14 13 12 11 10 9 8 .com .com .com .com 4 .com u datasheet
s1f76610 series 2C14 epson s1f70000 series technical manual simultaneous voltage conversion combining a standard voltage tripler circuit with one for positive voltage conversion generates both C15 and 8.2v outputs from a single input, however, it also raises the output impedance. a voltage doubler generates C10 and 3.8v outputs. potential levels v dd = 0 v v i = ? v v o1 = ?5 v v o2 = 8.2v using an external gradient the s1f7661c0b0/m0b0 offers three built-in tem- perature gradients C0.1, C0.4 and C0.6%/ c. to set the gradient externally, place a thermistor, r t , in series with the variable resistor, r rv , used to adjust the output voltage. r t v reg r rv r1 10 f v dd r p + 1 2 3 4 5 6 7 14 13 12 11 10 9 8 v dd = 0 v v i = ? v v o2 = 8.2 v v o1 = ?5 v + + 10 f 10 f 10 f 10 f 10 f 10 f + r osc 1 m d1 d2 5 v d3 + + + 1 2 3 4 5 6 7 14 13 12 11 10 9 8 .com .com .com .com 4 .com u datasheet
s1f76540 series s1f70000 series epson 2C15 technical manual s1f76540 series description the s1f76540c0a0/m0a0 is a cmos process, charge-pumping dc/dc converter and voltage regula- tor featuring the very high efficiency but low power consumption. an addition of four, three, or two exter- nal capacitors can generate four-, three- or two-time output voltage in negative direction than the input volt- age. also, the built-in voltage regulator can set any out- put voltage of dc/dc converter and can output the regulated voltage using two external resistances. as the regulator output can have a negative temperature gradi- ent that is required for lcd panels, it is optimum for the lcd panel power supply. features ? charge-pumping, dc-to-dc converter (four-, three- or two-time negative boosting) ? built-in voltage regulator (regulated voltage output circuit) ? high power conversion efficiency : 95% ? low current consumption : 130 m a (v i = C5.0 v during four-time boosting, typ.) ? high output capacity : 20 ma (max.) ? input voltages : C2.4 to C5.5 v (during four-time boosting) : 2.4 to C7.3 v (during three-time boosting) : 2.4 to C11 v (during two-time boosting) ? dc/dc converter output voltage : |input voltage| 4 (max.) ? built-in reference voltage for high-precision regulator : 1.5 0.05 v (at c t0 ) ? temperature gradient function of regulator output voltages : C 0.04, C 0.15, C 0.35, C 0.55 (%/ c) ? low standby current (during power-off) : 5.0 m a ? power-off by the external signal ? full built-in oscillator circuit ? lineup : s1f76540m0a0, 16-pin ssop : s1f76540c0a0, 16-pin dip applications ? power supply of medium- and small-capacity lcd panels ? regulated power supply of battery driven devices s1f76540 series charge pumping dc/dc converter & voltage regulator .com .com .com .com 4 .com u datasheet
s1f76540 series 2C16 epson s1f70000 series technical manual block diagram pin descriptions v dd power-off control circuit voltage converter circuit clock generator circuit booster control circuit voltage regulation circuit reference voltage circuit c1p c2n c2p c3n c1n fc v i p off1 p off2 tc1 tc2 v o v ri rv v reg 1 2 3 4 5 6 7 8 v o v ri v reg rv v dd fc tc1 tc2 16 15 14 13 12 11 10 9 c2p c2n c3n c1n c1p v i p off1 p off2 figure 2.1 block diagram figure 2.2 s1f76540m0a0/c0a0 pin assignments .com .com .com .com 4 .com u datasheet
s1f76540 series s1f70000 series epson 2C17 technical manual s1f76540 series table 2.1 pin descriptions pin name pin no. pad no. description v o 1 18 four-time booster output v ri 2 19 regulator input v reg 3 20 regulator output r v 4 21 regulator output voltage adjustment input v dd 5 22, 23 power pin (positive) fc 6 24 internal clock frequency input, and clock input in serial/parallel connection tc1 7 3 regulator output temperature gradient setup input (1) tc2 8 4 regulator output temperature gradient setup input (2) p off2 9 5 power-off control input (2) p off1 10 6 power-off control input (1) v i 11 11, 12 power voltage (negative) c1p 12 13 two- or four-time booster capacitor positive pin c1n 13 14 two-time booster capacitor negative pin c3n 14 15 four-time booster capacitor negative pin c2n 15 16 three-time booster capacitor negative pin c2p 16 17 three-time booster capacitor positive pin .com .com .com .com 4 .com u datasheet
s1f76540 series 2C18 epson s1f70000 series technical manual table 2.2 absolute maximum ratings v dd reference parameter symbol rating unit remarks min. max. input power voltage v i C26.0/n v dd + 0.3 v n = boost time v i pin input pin voltage v 1 v i C 0.3 v dd + 0.3 v p off1 , p off2 , tc1, tc2 and fc pins output pin voltage 1 v oc1 v i C 0.3 v dd + 0.3 v c1p and c2p pins output pin voltage 2 v oc2 2 v i C 0.3 v i + 0.3 v c1n pin output pin voltage 3 v oc3 3 v i C 0.3 2 v i + 0.3 v c2n pin output pin voltage 4 v oc4 4 v i C 0.3 3 v i + 0.3 v c3n pin regulator input power v ri n v i C 0.3 v dd + 0.3 v n = boost time, v ri pin voltage regulator input pin voltage v rv n v i C 0.3 v dd + 0.3 v n = boost time, rv pin output voltage v o n v i C 0.3 v dd + 0.3 v n = boost time v o and v reg pins input current i i 80 ma v i pin output current i o n 4: 20 ma n = boost time n > 4: 80/n v o and v reg pins allowable loss p d 210 mw ta 25 c operating temperature topr C30 85 c storage temperature tstg C55 150 c soldering temperature tsol 260 ? 10 c ? s at leads and time notes: 1. an operation exceeding the above absolute maximum ratings may cause a malfunction or permanent damage of devices. the device reliability may drop excessively even if the devices temporarily operate normally. 2. electrical potential to peripheral systems: the s1f76540 common power supply has the highest potential (v dd ). the electrical poten- tial given by this specification is based on v dd = 0 v. take care to avoid a potential problem during connection to a peripheral system. .com .com .com .com 4 .com u datasheet
s1f76540 series s1f70000 series epson 2C19 technical manual s1f76540 series electrical characteristics table 2.3 dc characteristics (1) parameter symbol characteristics min. typ. max. unit n = boost time if ct0 is selected C22/n C2.4 v input power voltage v i n = boost time if ct1 is selected C22/n C2.4 v n = boost time if ct2 is selected C22/n C2.4 v n = boost time if ct3 is selected C22/n C2.4 v boost start input power v sta n = boost time, fc = v dd during C22/n C2.4 v voltage no loading boost output voltage v o C22 v regulator input voltage v ri C22 C2.4 v regulator output voltage v reg i reg = 0, v ri = C22 v C2.4 v r rv = 1m w figure 2.3 potential relationship ta = C30 c to +85 c, v dd = 0 v, v i = C5.0 v unless otherwise noted v cc (+5 v) gnd (0 v) v dd (0 v) v i (? v) 5 v system s1f76540 10 v two-time boosting three-time boosting four-time boosting 15 v 20 v ?0 v ?5 v ?0 v .com .com .com .com 4 .com u datasheet
s1f76540 series 2C20 epson s1f70000 series technical manual parameter symbol characteristics min. typ. max. unit i o = 10 ma, v i = C5.0 v during 4-time boosting 200 300 w boost output impedance r o c1, c2, c3, c o = 10 m f (tantalum) i o = 10 ma, v i = C3.0 v, ta = 25 c during 4-time boosting 250 300 w c1, c2, c3, c o = 10 m f (tantalum) i o = 2 ma, v i = C5.0 v during 4-time boosting 95 % boost power conversion peff c1, c2, c3, c o = 10 m f (tantalum) efficiency i o = 2 ma, v i = C3.0 v, ta = 25 c during 4-time boosting 94 % c1, c2, c3, c o = 10 m f (tantalum) fc = v dd , p off1 = v i , p off2 = v dd , v i = C5.0 v during no loading 130 220 m a booster operation current i opr1 c1, c2, c3, c o = 10 m f (tantalum) consumption 1 fc = v dd , p off1 = v i , p off2 = v dd , v i = C3.0 v, ta = 25 c during no loading 100 150 m a c1, c2, c3, c o = 10 m f (tantalum) fc = v i , p off1 = v i , p off2 = v dd , v i = C5.0 v during no loading 520 880 m a booster operation current i opr2 c1, c2, c3, c o = 10 m f (tantalum) consumption 2 fc = v i , p off1 = v i , p off2 = v dd , v i = C3.0 v, ta = 25 c during no loading 400 600 m a c1, c2, c3, c o = 10 m f (tantalum) regulator operation i opvr v ri = C20 v, r rv = 1 m w during 10 15 m a current consumption no loading static current i q p off1 = v i , p off2 = v i 5.0 m a fc = v dd input leakage current i lki pins used: p off1 , p off2 , fc, 0.5 m a tc1, tc2 regulated output 0 < i reg < 20 ma saturation resistance r sat ( * 1) r v = v dd 10 20 w ta = 25 c regulated output C20 v < v ri < C10 v, i reg = 1 ma voltage stability d v r ( * 2) v reg = C9 v 0.2 %/v ta = 25 c table 2.3 dc characteristics (2) ta = C30 c to +85 c, v dd = 0 v, v i = C5.0 v unless otherwise noted .com .com .com .com 4 .com u datasheet
s1f76540 series s1f70000 series epson 2C21 technical manual s1f76540 series parameter symbol characteristics min. typ. max. unit regulated output load v ri = C20 v, v reg = C15 v, variation d v o ( * 3) ta = 25 c setup 30 50 mv 0 < i reg < 20 ma v ref0 tc1 = v dd , tc2 = v dd C1.55 C1.50 C1.45 v reference voltage v ref1 tc1 = v dd , tc2 = v i C1.70 C1.50 C1.30 v (ta = 25 c) v ref2 tc1 = v i , tc2 = v dd C1.90 C1.50 C1.10 v v ref3 tc1 = v i , tc2 = v i C2.15 C1.50 C0.85 v reference voltage c t0 tc1 = v dd , tc2 = v dd , ssop product C0.07 C0.04 0 %/ c temperature coefficient c t1 tc1 = v dd , tc2 = v i , ssop product C0.25 C0.15 C0.07 %/ c ( * 4, * 5) c t2 tc1 = v i , tc2 = v dd , ssop product C0.45 C0.35 C0.20 %/ c c t3 tc1 = v i , tc2 = v i , ssop product C0.75 C0.55 C0.30 %/ c v i = C2.4 to C5.5 v v ih pins used: p off1 , p off2 , fc, 0.2 v i v input voltage level tc1, tc2 v i = C2.4 to C5.5 v v il pins used: p off1 , p off2 , fc, 0.8 v i v tc1, tc2 booster capacitance cmax capacitors used: c1, c2 and c3 47 m f table 2.3 dc characteristics (3) ta = C30 c to +85 c, v dd = 0 v, v i = C5.0 v unless otherwise noted *1 r sat = d (v reg C v ri ) d i reg *2 d v r = v reg (v ri = C20 v) C v reg (v ri = C10 v) d v ri ? v reg (v ri = C10 v) *3 d v o = v reg (i reg = 20 ma) C v reg (i reg = 0 ma) d i reg *4 c t = | v ref (50 c) | C | v ref (0 c) | 100 50 c C 0 c| v ref (25 c) | *5 the reference voltage and temperature coefficient of the chip products may vary depending on the mold- ings used on each chip. use these chips only after the temperature test. .com .com .com .com 4 .com u datasheet
s1f76540 series 2C22 epson s1f70000 series technical manual table 2.4 ac characteristics v dd = 0 v and v i = C5.0 v unless otherwise noted parameter symbol conditions min. typ. max. unit fc = v dd , ta = 25 c 3.0 4.0 6.0 khz internal clock frequency 1 f cl1 p off1 = v i p off2 = v dd ta = C30 c 2.0 4.0 7.0 khz pin used: c1p to +85 c fc = v i , ta = 25 c 12.0 16.0 24.0 khz internal clock frequency 2 f cl2 p off1 = v i p off2 = v dd ta = C30 c 8.0 16.0 28.0 khz pin used: c1p to +85 c functional descriptions clock generator circuit as the s1f76540 has a built-in clock generator circuit, no more parts are required for voltage boost control. the clock frequency changes according to the fc pin voltage level as defined on table 2.5. low output mode or high output mode is selectable. this allows fre- quency selection according to the used capacitance and load current as the boost output impedance changes de- pending on the clock frequency and external booster ca- pacitance. however, the high output mode has the current consumption approximately four times larger than the low output mode. table 2.5 fc pin setup characteristics fc pin mode clock frequency current output ripple output capacitance consumption impedance high (v dd ) low output 4.0 khz (typ.) i op (*1) v rr (*2) see figure a1. see figure a1. low (v i ) high output 16.0 khz (typ.) i op approx. 4 v ri approx. 1/4 see figure a1. see figure a1. *1 see the dc characteristics table for current consumption. *2 see section page 2-32 for the output ripple definition and calculation. .com .com .com .com 4 .com u datasheet
s1f76540 series s1f70000 series epson 2C23 technical manual s1f76540 series figure a1 characteristic chart: capacitance vs. output impedance when 4x pressure is applied note: this characteristic chart simply indicates an approximate trend in the characteristics, which may vary depending on evaluation environment, parts used, and other factors. 550 500 450 400 350 300 250 200 150 110 v i = ?.0v fc = high v i = ?.0v fc = high v i = ?.0v fc = low v i = ?.0v fc = low c [ f] output impedance [ w ] 100 capacitance vs. output impedance characteristic when 4x pressure is applied load current = 10 ma, ta = 25 c, c1 = c2 = c 0 capacitor used: tantalum electrolytic capacitor .com .com .com .com 4 .com u datasheet
s1f76540 series 2C24 epson s1f70000 series technical manual voltage converter the voltage converter, consisting of a boost control cir- cuit and a voltage converter circuit, receives clocks from the clock generator circuit and boosts the input power voltage (v i ) four, three or two times. during four-time boosting, however, the three-time and two- time boost outputs cannot be obtained simultaneously. figure 2.4 gives the potential relationship during four-, three- and two-time boosting. the c2p pin is also used as the master clock output during parallel connection. figure 2.4 electrical potentials during boosting (at C5v input) caution: ? when connecting a capacitor to the c1p, c2p, c1n, c2n, c3n, or v o pin for voltage conversion, close the capacitor to the ic package as much as possible to minimize the wiring length. v dd (0 v) v i (C5 v) 10 v 15 v 20 v C10 v C15 v C20 v two-time boosting three-time boosting four-time boosting .com .com .com .com 4 .com u datasheet
s1f76540 series s1f70000 series epson 2C25 technical manual s1f76540 series reference voltage circuit the s1f76540 has a built-in reference voltage circuit for voltage regulation. the regulated voltage (ex- plained in the next voltage regulator circuit section) is set depending on the division ratio between this refer- ence voltage and the external resistance. the reference voltage can be used to change the temperature coeffi- cient at pins tc1 and tc2. one of four states can be selected as listed on table 2.6. table 2.6 setup of reference voltage and temperature coefficient tc1 tc2 reference voltage, temperature coefficient, (high = v dd ) (high = v dd )v ref (v) c t (%/ c) mode (low = v i ) (low = v i ) min. typ. max. min. typ. max. c t0 high high C1.55 C1.5 C1.45 C0.07 C0.04 0 c t1 high low C1.70 C1.5 C1.30 C0.25 C0.15 C0.07 c t2 low high C1.90 C1.5 C1.10 C0.45 C0.35 C0.20 c t3 low low C2.15 C1.5 C0.85 C0.75 C0.55 C0.30 notes: 1. the reference voltage is given at ta = 25 c. 2. the reference voltage and temperature coefficient of the chip products may vary depending on the moldings used on each chip. use these chips only after the temperature test. the temperature coefficient (c t ) is defined by the following equation. the negative sign of the temperature coeffi- cient (c t ) means that the |v ref | value decreases when the temperature rises. c t = | v ref (50 c) | C | v ref (0 c) | 100 50 c C 0 c| v ref (25 c) | notes on tc1 and tc2 pin replacement: ? when replacing the tc1 and tc2 pins after power-on, always select the power-off mode (p off1 = p off2 = v i ) and replace them by each other. voltage regulator circuit the voltage regulator circuit regulates a voltage entered in the v ri pin and can output any voltage. it uses the series voltage regulation. as shown in figure 2.5, the v ri and v o pins must be short-circuited by a jumper as short as possible except for larger time boosting by us- ing external diodes. as shown by equation (1), any output voltage can be set by the ratio of external division resistors r1 and r2. the sum of division resistance is recommended to be small as possible to avoid an external noise interfer- ence. as the current consumed by division resistors (equation (2)) flows, the 100 w to 1m w are recom- mended to use. the temperature coefficient of the regulated voltage is equal to the temperature coefficient of the reference voltage that is explained in the reference voltage cir- cuit section. .com .com .com .com 4 .com u datasheet
s1f76540 series 2C26 epson s1f70000 series technical manual setup: ? relationship between v reg and reference voltage v reg = r1 + r2 (reference voltage) ? ? ? ? equation (1) r1 ? current consumption of division resistors i reg = | v reg | ? ? ? ? equation (2) r1 + r2 setup example: ? to output v reg = C18 v by four-time boosting if v i = C5 v and v o = C20 v first, determine the total resistance of division resistors r1 and r2. if the current consumption is assumed to be 20 m a, the total resistance can be obtained from equation (2) as follows: r1 + r2 = 12v ? 20 m a = 900 k w if the reference voltage is -1.5 v, the division resistance ratio can be obtained from equation (1) as follows: (r1 + r2) / r2 = (C18 v) ? (C1.5 v) = 12 therefore, r1 and r2 are: r1 = 75 k w r2 = 825 k w figure 2.5 v reg setup and mounting notes r1 v o v ri v reg rv v dd fc tc1 tc2 c2p c2n c3n c1n c1p v i p off1 p off2 r2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 .com .com .com .com 4 .com u datasheet
s1f76540 series s1f70000 series epson 2C27 technical manual s1f76540 series changing the temperature coefficient: ? the temperature coefficient of the regulated voltage depends on the temperature coefficient of the reference voltage (if the division ratio of setup resistors does not depend on the temperature). it is necessary to change the temperature coefficient using thermistors, resistors or others to set any other temperature coefficient of the regulated voltage. the following explains how to calculate the v reg voltage in temperature t. v reg (t) = 1 + c tr2 r2 (t 0 ) 1+ (t C t 0 ) c t ? ? ? ? equation (3) c tr1 r1 (t 0 ) 100 t 0 :25 c c tr1 : temperature coefficient of resistor r1 (ratio to the value at 25 c) c tr2 : temperature coefficient of resistor r2 (ratio to the value at 25 c) c t : temperature coefficient of internal reference voltage (%/ c) r1 (t 0 ) : r1 value ( w ) at 25 c r2 (t 0 ) : r2 value ( w ) at 25 c v ref (t 0 ) : internal reference voltage (v) at 25 c if the temperature coefficient of r1 and r2 is identical in equation (3), the v reg voltage depends on the tem- perature coefficient of internal reference voltage only. application notes on voltage regulator circuit: ? to satisfy the absolute maximum ratings of the s1f76540, the setup resistor(s) must be inserted between v dd and v reg pins of the s1f76540 that uses the voltage regulator. the s1f76540 ic itself may be degraded or destroyed if the r1 resistor is connected to pin v dd of s1f76540 that does not use the regulator during serial connection. ? the regulation voltage adjustment input (pin rv) has the very high input impedance, and its noise insertion can drop the regulator stability. as shown in figure 2.5, shield the cable between the division resistor and rv pin or use a cable as short as possible between them. {} ] [ .com .com .com .com 4 .com u datasheet
s1f76540 series 2C28 epson s1f70000 series technical manual p off1 p off2 functions (high = v dd ) (high = v dd ) oscillator booster regulator applications mode (low = v i ) (low = v i ) circuit circuit ps1 high low on on on all circuits are turned on. ps2 low low off off ( * 1) off ( * 2) all circuits are turned off. ps3 high high off on on slave unit side of parallel connection (booster and regulator) ps4 low high on on off master unit side of parallel connection (booster only) power-off control function the s1f76540 has the power-off function and turns on or off each circuit function when control signals are en- tered in the p off1 and p off2 pins from an external sys- tem (such as microprocessor) as defined on table 2.7. this power-off function can also cut the reactive current in parallel connection and other application circuits. to use the dual-state, power-off control (all on and all off states) only, connect pin p off2 to pin v i and use only pin p off1 for power-off control. * 1 when the booster circuit is off, approximately v i + 0.6 v voltage appears at v o pin. * 2 when the regulator is off, the v reg pin becomes high-impedance state. application notes on power-off function: ? when using external system signals for power-on control, start to control the power only when v i voltage becomes stable after power-on. unstable v i voltage may destroy the ic permanently during on/off control. figure 2.6 start timing of power-off control table 2.7 available combination of power-off control v i p off1 p off2 v i p off1 p off2 .com .com .com .com 4 .com u datasheet
s1f76540 series s1f70000 series epson 2C29 technical manual s1f76540 series characteristics graph 200 180 160 140 120 100 80 60 40 booster current consumption [ a] booster output impedance [ ] 0 300 280 260 240 220 200 180 160 140 120 100 1234567 5 47 3 input voltage [v] input voltage (v i ) vs. booster circuit current consumption (i opr ) input voltage [v] input voltage (v i ) vs. booster output impedance (r o ) 6 2 1 v o (v) p eff (%) v o (v) p eff (%) v i = ? v, four-times booster v i = ? v, four-times booster ?2.00 0 0 ?0.00 0 50.00 100.0 0 20.00 i o (ma) i o (ma) 20.00 50.00 100.0 p eff v o p eff v o power conversion efficiency (peff) vs. output voltage (v o ) input current (i o ) vs. output voltage (v o ) power conversion efficiency (peff) vs. output voltage (v o ) input current (i o ) vs. output voltage (v o ) figure 2.7 characteristics graphs .com .com .com .com 4 .com u datasheet
s1f76540 series 2C30 epson s1f70000 series technical manual application circuit examples four-time booster and regulator figure 2.8 gives a wiring example of four-time booster and regulator that is the typical s1f76540 application. this example boosts the input voltage (v i ) four times in negative direction, and outputs the regulated voltage at v reg pin. setup conditions of figure 2.8 ? internal clock : on (low output mode) ? booster circuit : on ? regulator : on (if c t = C0.04%/ c) power-off procedure ? set the p off1 pin to logical low (v i ) to turn off all circuits. regulator ? for the regulator setup and notes, see the voltage regulator circuit section. application in other setup conditions 1 when used in the high output mode ? connect the fc pin to the v i pin. 2 when changing the temperature coefficient (c t ) ? change the tc1 and tc2 pin setup by following the definition of table 2.7. r1 v o v ri v reg rv v dd fc tc1 tc2 c2p c2n c3n c1n c1p v i p off1 p off2 r2 c2 c1 c3 1 2 3 4 5 6 7 8 c i v i v dd v reg c o c reg + + + + 16 15 14 13 12 11 10 9 + + figure 2.8 wiring example of 4-time booster and regulator .com .com .com .com 4 .com u datasheet
s1f76540 series s1f70000 series epson 2C31 technical manual s1f76540 series setup conditions of figure 2.9 ? internal clock : on (low output mode) ? booster circuit : on ? regulator : off power-off procedure ? set the p off2 pin to low (v i ) to turn off all circuits. ripple voltage ? as the output at v o pin is unstable, it can contain ripple components as shown in figure 2.10. the ripple voltage (v rp ) increases according to the load current, and it can roughly be calculated by equation (4). figure 2.9 wiring example of 4-time booster v o v ri v reg rv v dd fc tc1 tc2 c2p c2n c3n c1n c1p v i p off1 p off2 c2 c1 c3 1 2 3 4 5 6 7 8 c i v i v dd v o c o + + + 16 15 14 13 12 11 10 9 + + 4-time booster only the booster circuit operates, and it boosts the input voltage (v i ) four times in negative direction and outputs it at the v o pin. as the regulator is not used, the voltage appearing at the v o pin may contain ripple components. figure 2.9 gives a wiring example. .com .com .com .com 4 .com u datasheet
s1f76540 series 2C32 epson s1f70000 series technical manual parallel connection (for increased boosting) the parallel connection is useful for reduction of booster output impedance or reduction of ripple volt- age. in the parallel connection of n lines, the booster output impedance can be reduced to approximately 1/ n". only the smoothing capacitor (c o ) for booster out- put can be used commonly in the parallel connection. when using the regulator, use only one of n s1f76540 chips which are in parallel connection. (if multiple regulators are operated in parallel mode, the reactive current consumption occurs.) figure 2.11 gives a wiring example of 4-time booster and regulator where two s1f76540s are parallelly connected. v rp = i o + i o ? r cout ? ? ? ? equation (4) 2 ? f cl ? c o where, i o : load current (a) f cl : clock frequency (hz) r cout : serial equivalent resistance ( w ) of output capacitor c o figure 2.10 ripple waveforms application in other setup conditions 1 when used in the high output mode connect the fc pin to the v i pin. figure 2.11 parallel connection example v rp + c2 + + c3 c1 1 2 3 4 5 6 7 8 v o v ri v reg rv v dd fc tc1 tc2 c2p c2n c3n c1n c1p v i p off1 p off2 16 15 14 13 12 11 10 9 + c2 + r2 c reg v reg r1 + + c3 c o v dd v i c i c1 1 2 3 4 5 6 7 8 v o v ri v reg rv v dd fc tc1 tc2 c2p c2n c3n c1n c1p v i p off1 p off2 16 15 14 13 12 11 10 9 + + .com .com .com .com 4 .com u datasheet
s1f76540 series s1f70000 series epson 2C33 technical manual s1f76540 series setup conditions of figure 2.11 first stage second stage ? internal clock : on (low output mode) ? internal clock : off ? booster circuit : on ? booster circuit : on ? regulator : off ? regulator : on (if c t = C0.04%/ c) power-off procedure ? in figure 2.11, when the p off2 pin of the first-stage s1f76540 is set to low (v i ), voltage boosting is stopped at the first and second stages. however, the regulator at the second stage does not stop. therefore, the voltage that is approximately v i appears at v reg pin during |v reg | > |v i | setup. ? to set the v reg pin to high-impedance state, set both p off1 and p off2 pins to low at the first and second stages. application in other setup conditions 1 when used in the high output mode ? connect the fc pin of the first-stage s1f76540 to the v i pin. 2 when changing the temperature coefficient (c t ) ? change the tc1 and tc2 pin setup by following the definition of table 2.7. larger time boosting using diodes the s1f76540 can be configured to have the five-time or larger voltage boosting and regulation by adding ex- ternal diodes. as the booster output impedance in- creases due to the diode forward voltage drop (v f ), the diodes having a smaller v f are recommended to use. figure 2.12 gives a wiring example of 6-time booster and regulator that use two diodes. the wiring between v o and v ri must be minimal. figure 2.13 provides the potential relationship. figure 2.12 wiring example for 6-time boosting using diodes + + c2 c4 + ++ + c3 c5 d2 d1 c o v o ' c1 1 2 3 4 5 6 7 8 v o v ri v reg rv v dd fc tc1 tc2 c2p c2n c3n c1n c1p v i p off1 p off2 16 15 14 13 12 11 10 9 + r2 c reg r1 + c i v i v dd v reg .com .com .com .com 4 .com u datasheet
s1f76540 series 2C34 epson s1f70000 series technical manual setup conditions of figure 2.12 ? internal clock : on (low output mode) ? booster circuit : on ? regulator : on (if c t = C0.04%/ c) power-off procedure ? set the p off1 pin to low (v i ) to turn off all circuits. output voltages ? when diodes are used for voltage boosting, the characteristics of diodes directly affect on the voltage boosting characteristics. the forward voltage drop (v f ) of diodes can reduce the booster output voltage. as the example of figure 2.12 uses two diodes, the drop of v f voltage multiplied by two occurs as shown in figure 2.13. the booster output voltage is expressed by equation (5). to increase the |v o '| value, use the diodes having a smaller v f . | v o ' | = 6 | v i | C 2 v f ? ? ? ? equation (5) notes 1 input and output current conditions to satisfy the input and output current ratings, limit the total current does not exceed the rated input current. the total current means the total boost time multiplied by the output load current. the example of figure 2.12 has the maximum load current of 13.3 ma ( = 80 ma divided by 6). 2 input and output voltage conditions to satisfy the input and output voltage ratings, take care not to violate the electric potential relationship of higher time boosting using diodes. the example of figure 2.12 must have the v i that can satisfy the input voltage conditions during 6-time boosting (see table 2.3). application in other setup conditions 1 when used in the high output mode connect the fc pin to the v i pin. 2 when changing the temperature coefficient (c t ) change the tc1 and tc2 pin setup by following the definition of table 2.7. v dd v i v i 4v i 6v i 6v i C (2 * v f ) v o ' 2 * v f v o figure 2.13 potential relationship during 6-time boosting using diodes .com .com .com .com 4 .com u datasheet
s1f76540 series s1f70000 series epson 2C35 technical manual s1f76540 series positive voltage conversion the s1f76540 can also boost up a voltage to the posi- tive potential using external diodes. in such case, how- ever, the regulator function is unavailable. figure 2.14 gives a wiring example for three-time positive boosting, and figure 2.15 provides its electrical potential rela- tionship. figure 2.14 wiring example of positive voltage conversion (3-time boosting) setup conditions of figure 2.14 ? internal clock : on (low output mode) ? booster circuit : on ? regulator : off power-off procedure ? set the p off2 pin to low (v i ) to turn off all circuits. two-time boosting ? to boost up a voltage two times, remove capacitor c1 and diode d1 of figure 2.14, and connect the anode of diode d2 to the v dd pin. v dd v o v ri v reg rv v dd fc tc1 tc2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 c2p c2n c3n c1n c1p v i p off1 p off2 d1 v i c i + c1 + c2 c o v o ' + + d2 d3 v dd v i v i 3v i 3v i ?(3 * v f ) 3 * v f v o' figure 2.15 potential relationship during positive voltage conversion (3-time boosting) .com .com .com .com 4 .com u datasheet
s1f76540 series 2C36 epson s1f70000 series technical manual output voltages ? when diodes are used for voltage boosting, the characteristics of diodes directly affect on the voltage boosting characteristics. the forward voltage drop (v f ) of diodes can reduce the booster output voltage. as the example of figure 2.14 uses three diodes, the drop of v f voltage multiplied by three occurs. the booster output voltage is expressed by equation (5). to increase the |v o '| value, use the diodes having a smaller v f . | v o ' | = 3 | v i | C (3 v f ) ? ? ? ? equation (6) notes 1 input and output current conditions to satisfy the input and output current ratings, take care to limit the input current below the ratings. 2 input and output voltage conditions during forward voltage conversion, the input voltage ratings are the same as two-time negative voltage boost- ing (see table 2.3). application in other setup conditions when used in the high output mode, connect the fc pin to the v i pin. wiring example when changing the regulator temperature coefficient the temperature coefficient of the regulator depends on the temperature coefficient of the internal reference figure 2.16 wiring example when changing the regulator temperature coefficient v reg c o c reg rp rt v dd v i c i r1 r2 c2 c3 c1 + + + + + + v o v ri v reg rv v dd fc tc1 tc2 c2p c2n c3n c1n c1p v i p off1 p off2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 voltage. to set another temperature coefficient, use a thermistor resistor or others as shown in figure 2.16. .com .com .com .com 4 .com u datasheet
s1f76540 series s1f70000 series epson 2C37 technical manual s1f76540 series setup conditions of figure 2.16 ? internal clock : on (low output mode) ? booster circuit : on ? regulator : on ? thermistor resistor : rt power-off procedure ? set the p off1 pin to low (v i ) to turn off all circuits. regulator temperature coefficient ? for the regulator setup and notes, see the voltage regulator circuit section of the function. ? the thermistor resistor (rt) has the non-linear temperature characteristics. to correct them to the linear char- acteristics, insert the rp as shown figure 2.16. application in other setup conditions ? when used in the high output mode, connect the fc pin to the v i pin. .com .com .com .com 4 .com u datasheet
s1f76640 series 2C38 epson s1f70000 series technical manual description s1f76640 is a high efficiency and low power con- sumption cmos dc/dc converter. it is roughly di- vided into two portions, step-up circuit and stabilization circuit. the step-up circuit can provide 2 times step-up outputs (3.6 to 11v), 3 times step-up outputs (5.4 to 16.5v) or 4 times step-up outputs (7.2 to 22v) of input voltages (1.8 to 5.5v). if external parts (diode, capaci- tor) are attached to it, it can realize step-up operations of higher magnifications. the stabilization circuit enables to set outputs to any voltages. since the stabilization circuit can provide three kinds of minus temperature gradients to stabilized outputs, it is optimum as a power supply for liquid crys- tal display (lcd). also, s1f76640 enable to drive ics (liquid crystal driver, analog ic, etc.), which requires another power supply in addition to logic main power supply, with a single power supply. also, its small power consump- tion makes it suitable as a micro power supply for handy devices like hand-held computer. features ? high efficiency and low power consumption cmos dc/dc converter ? easy three kinds voltage conversions to positive po- tential side from input voltage v dd (+3.3v) . from input voltage v dd (+3.3v) to outputs 2 v dd (+6.6v), 3 v dd (+9.9v) and 4 v dd (+13.2v). ? attachment of external parts (diode, capacitor) makes step-up operations of higher magnifications possible. ? built-in output voltage stabilization circuit external resistor enables to set any output voltages. ? output current : max. 20ma(v dd =+5v) ? power conversion efficiency : typ. 95% ? 3 kinds of reference voltages with negative tempera- ture gradient characteristic suitable for lcd drive power supply can be selected. ? power off operation by external signal static current at power off time : max. 2 m a ? possibility of high magnification step-up operation by series connection ? low voltage operation .... optimum for battery drive ? built-in cr oscillator ? ssop2-16pin .......... s1f76640m0a0 bare chip ................ s1f76640d0a0 ? radiation-resistant design has not been provided for this specification. s1f76640 series cmos dc/dc converter & voltage regulator .com .com .com .com 4 .com u datasheet
s1f76640 series s1f70000 series epson 2C39 technical manual s1f76640 series block diagram figure 3-1 block diagram cap3+ v o vri v reg rv p off tc1 tc2 cap2 cap2+ cap1 cap1+ v dd osc2 gnd osc1 voltage conversion circuit cr oscillator reference voltage generator voltage stabilization circuit temperature gradient selection circuit step-up circuit stabilization circuit .com .com .com .com 4 .com u datasheet
s1f76640 series 2C40 epson s1f70000 series technical manual pin assignments ssop2-16pin figure 4-2 pin assignments of ssop2-16pin rv v reg tc1 tc2 p off (gnd)v ss osc1 osc2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 v ri v o cap3+ cap2+ cap2 cap1+ cap1 v dd .com .com .com .com 4 .com u datasheet
s1f76640 series s1f70000 series epson 2C41 technical manual s1f76640 series pin no. pin name description 1 rv stabilization voltage regulation pin. when the intermediate tap of the external volume (3-pin resistor) connected between the v dd pin and the v reg pin is connected to the rv pin, v reg output voltage can be adjusted. 2v reg stabilized voltage output pin 3 tc1 temperature gradient selection pin 4 tc2 temperature gradient selection pin 5p off v reg output on/off control pin. when control signal from the system side is input to this pin, the power off (v reg output power off) control of s1f76640 becomes available. 6 gnd power supply pin (minus side, system gnd) 7 osc1 oscillation resistor connection pin. this pin becomes the clock input pin when an external clock operates. 8 osc2 oscillation resistor connection pin. this pin is released when an external clock operates. 9v dd power supply pin (plus side, system v cc ) 10 cap1C pump up capacitor minus side connection pin for 2 times step-up. next stage clock at series connection time. 11 cap1+ pump up capacitor plus side connection pin for 2 times step-up 12 cap2C pump up capacitor minus side connection pin for 3 times step-up. output pin at 2 time step-up time (to be short-circuited to v o ). 13 cap2+ pump up capacitor plus side connection pin for 3 times step-up 14 cap3+ pump up capacitor plus side connection pin for 4 times step-up. output pin at 3 times step-up time (to be short-circuited to v o ). 15 v o output pin at 3 times step-up time 16 v ri stabilization circuit input pin pin descriptions .com .com .com .com 4 .com u datasheet
s1f76640 series 2C42 epson s1f70000 series technical manual chip external shape figure 4-4 pad assignments (x) (y) (t) chip size : 2.30mm 2.60mm 0.30mm pad aperture : 100 m m 100 m m die number : f76640d0a0 pad center coordinates s1f7664d0a0 pad pad center coordinates no. name x[ m m] y[ m m] 1 rv C984.0 1096.0 2v reg 788.0 3 (testout) 580.0 4 tc1 390.0 5 tc2 96.0 6p off C218.0 7 gnd C510.0 8 osc1 C802.0 9 osc2 984.0 C1094.0 10 v dd C1134.0 11 cap1C C892.0 12 cap1+ C514.0 13 cap2C 182.0 14 cap2+ 372.0 15 cap3+ 750.0 16 v o 942.0 17 v ri 1134.0 + (0,0) y x 2.30mm 2.60mm chip external shape and pad center coordinates .com .com .com .com 4 .com u datasheet
s1f76640 series s1f70000 series epson 2C43 technical manual s1f76640 series functional descriptions cr oscillator s1f76640 has a built-in cr oscillator as the internal oscillator, and an external oscillation resistor r osc is connected between the pins osc1 and osc2 before operation. (figure 5.1) figure 5-1 cr oscillator figure 5-2 external clock operation note 1 : since the oscillation frequency varies with wiring capacitance, make the cables between the terminals osc1 and osc2 and r osc as short as possible. when setting the external resistor r osc , find the oscillation frequency f osc that brings about the maximum effi- ciency from figures 6.5.12 and 6.5.13 and find r osc suitable for the f osc from figure 6.5.1 the relations between r osc and f osc in figure 6.5.1 are expressed approximately with the following formula as far as the straight portion (500k w < r osc < 2m w ) is concerned: r osc = a 1 f osc so, the r osc value can be obtained from this formula. (recommended oscillation frequency : 10khz to 30khz (r osc : 2m w to 680k w ) when the external clock operates, make the pin osc2 open as shown in figure 5.2 and input the 50% duty of the external clock from the pin osc1. voltage conversion circuits (i) and (ii) the voltage conversion circuits (i) and (ii) doubles and triples the input voltage v dd respectively by using clock generated in the cr oscillator. in case of 2 times step-up, 2 times step-up output of the input voltage is obtained from the v o pin when a pump up capacitor is connected between cap1+ and cap1C, cap2+ and cap3+ are short-circuited to v o and a smoothing capacitor is connected between v dd and v o outside. in case of 3 times step-up, 3 v dd is output from the v o pin when a pump up capacitor is connected between cap1+ and cap1C and between cap2+ and cap2C respectively and a smoothing capacitor is connected between the v dd and v o pins outside. in case of 4 times step-up, 4 v dd is output from the v o pin when a pump up capacitor is connected between cap1+ and cap1C, between cap2+ and cap2C and between cap1+ and cap3C respectively and a smoothing capacitor is connected between the v dd and v o pins outside. when gnd is 0 and v dd is 5, the relations between the input voltage and the output voltage are as shown in figures 5-3, 5-4 and 5-5. osc1 osc2 osc1 osc2 open external clock (note 1) r osc a : constant, when gnd is 0v and v dd is 5v, a is 2.0 10 10 (1/f).) [ ] .com .com .com .com 4 .com u datasheet
s1f76640 series 2C44 epson s1f70000 series technical manual note 1 : at the 3 times step-up time, 2 times step-up output (C10v) cannot be taken out from the cap2C pin. note 2 : at the 4 times step-up time, 2 times step-up output (C10v) cannot be taken out from the cap2C pin. note 3 : at the 4 times step-up time, 3 times step-up output (C15v) cannot be taken out from the cap3C pin. reference voltage generator, voltage stabilization circuit the reference voltage generator generates reference voltage necessary for operation of the voltage stabilization circuit and adds temperature gradient to reference voltage. three temperature gradients are available, and signal from the temperature gradient selection circuit select one of them. the voltage stabilization circuit stabilizes the step-up output voltage v o and outputs optional voltages. when an external resistor r rv is connected as shown in figure 5-5 and the potential of the intermediate tap is changed, v reg output voltage can be set to optional voltages between the reference voltage v rv and v o . figure 5-6 voltage stabilization circuit the voltage stabilization circuit has power off function and can control on/off of v reg output according to signals from the system side (microprocessor, etc.) when p off is high (v dd ), v reg output is turned on, and when p off is low (gnd), it is turned off. when the control is not necessary, p off is fixed to high (v dd ). cap1+=2v dd =10v v dd =5v gnd=0v v dd =5v gnd=0v v dd =5v gnd=0v cap2+=3v dd =15v note 1 note 3 note 2 cap3+=4v dd =20v figure 5-3 example of 2 times step-up potential relations figure 5-4 example of 3 times step-up potential relations figure 5-5 example of 4 times step-up potential relations v ss p off rv v reg r 1 r rv =100k to 1m control signal v reg = r rv r 1 ?v rv .com .com .com .com 4 .com u datasheet
s1f76640 series s1f70000 series epson 2C45 technical manual s1f76640 series p off tc2 tc1 temperature v reg cr remarks (note 1) (note 1) (note 1) gradient c t (note 2) output oscillator 1(v dd ) low(v ss ) low(v ss ) C0.40%/ ?c on on 1(v dd ) low(v ss ) high(v o ) C0.25%/ ?c on on 1(v dd ) high(v o ) low(v ss ) C0.55%/ ?c on on 1(v dd ) high(v o ) high(v o ) C0.55%/ ?c on off series connection (note 4) 0(v ss ) low(v ss ) low(v ss ) off(hi-z)(note 3) off 0(v ss ) low(v ss ) high(v o ) off(hi-z)(note 3) off 0(v ss ) high(v o ) low(v ss ) off(hi-z)(note 3) off 0(v ss ) high(v o ) high(v o ) off(hi-z) on boosting only (note 5) note 1 : please note that potentials on the high side are different between the p off pin and tc2/tc1 pin. note 2 : the formula below is used to define temperature gradient c t : c t = v reg (50?c) C v reg (0?c) 1 100 (%/?c) 50?cC0?c v reg (25?c) example :when c t =C0.6%/?c is selected, when ta is 25?c, the v reg output becomes C8v at 25?c. d v reg / d t=c t v reg (25?c) =C0.6 10 C2 8=C48mv/?c when the temperature rises 1 ?c, the v reg value reduces by 48mv. when v reg is C10v at 25?c, the formula below is formed: d v reg d t=C60mv/?c note 3 : at power off time (v reg output : off, cr oscillator : off), the potential of the v o output is about v dd +0.5v. note 4 : when this mode is selected at a series connection, the first stage clock can drive the next stage ic and this mode is effective for reducing the power consumption of the next stage ic. (see figure 8.4) note 5 : select this mode for boosting only. and the current consumption can be reduced. temperature gradient selection circuit s1f76640 can provide three kinds of temperature gradients suitable for driving lcd to v reg output as shown table 5-1. table 5-1 temperature gradient adaptation table .com .com .com .com 4 .com u datasheet
s1f76640 series 2C46 epson s1f70000 series technical manual electrical characteristics absolute maximum ratings parameter symbol rating unit remarks min. max. input supply voltage v dd gnd-0.3 24/n v v dd n = 2 : 2 times step-up n = 3 : 3 times step-up n = 4 : 4 times step-up input pin voltage v i gndC0.3 v dd -0.3 v osc1,p off gndC0.3 v o -0.3 v tc1,tc2, rv output voltage v o gndC0.3 22 v v o note 3 gndC0.3 v o vv reg note 3 output pin voltage 1 voc1 gndC0.3 v dd C0.3 v cap1+,cap2+ osc2 output pin voltage 2 voc2 gndC0.3 2 v dd C0.3 v cap1C output pin voltage 3 voc3 gndC0.3 3 v dd C0.3 v cap2C output pin voltage 4 voc4 gndC0.3 4 v dd C0.3 v cap3C allowable loss p d 210 mw ssop-16pin operating temperature topr C40 85 ?c storage temperature tstg C55 150 ?c soldering tsol 260 10 ?c s at leads temperature and time note 1 : under the conditions exceeding the above absolute maximum ratings, the ic may result in a permanent destruction. an operation for a long period under the conditions of the above absolute maximum ratings may deteriorate the reliability remarkably. note 2 : all voltage values are based on gnd. note 3 : the output pins (v o and v reg ) are for stabilizing and outputting boosted voltages. so, they are not used to apply voltage from outside. when voltage is applied from outside for unavoidable reasons, limit the voltage to the rated voltage mentioned above or less. .com .com .com .com 4 .com u datasheet
s1f76640 series s1f70000 series epson 2C47 technical manual s1f76640 series recommended operating conditions note 1 : all voltages are based on the gnd being 0v. note 2 : the figure below shows the recommended circuit for operation with low voltages (v dd =1.8 to 2.2v): figure 6-2-1 recommended circuit diagram for low voltage operation (example of 4 times step-up circuit) note 3 : r l min varies with input voltage. see characteristics graph (15). parameter symbol rating unit remarks min. max. step-up start voltage v sta1 1.8 v r osc =1m w , c 4 3 10 m f c l /c 4 1/20 note 2 v sta2 2.2 v r osc =1m w step-up stop voltage v stp 1.8 v r osc =1m w output load resistance r l r l min note 3) w output load current i o 20ma oscillation frequency f osc 10 30 khz external resistor r osc 680 2000 k w for oscillation step-up capacitor c 1 ,c 2 ,c 3 ,c 4 3.3 m f stabilization output r rv 100 1000 k w regulation resistance 1 2 3 4 5 6 7 8 rv v reg tc1 tc2 p off v ss osc1 osc2 v ri v o cap3+ cap2+ cap2 cap1+ cap1 v dd 16 15 14 13 12 11 10 9 v i c 2 c 4 c 1 c 3 + + + d 1 r l c l (d1(vf(1f=1ma) is recommended to be not more than 0.6v.) .com .com .com .com 4 .com u datasheet
s1f76640 series 2C48 epson s1f70000 series technical manual electrical characteristics unless otherwise specified, ta=C40?c to +85?c gnd=0v, v dd =5v parameter symbol specification value unit conditions measurement min. typ. max. circuit input supply voltage v dd 1.8 5.5 v output voltage v o 22 v v reg v rv 22 v r= , r rv =1m w , v o =22v 2 stabilization circuit v o v rv +2.1 22 v operating voltage step-up circuit current i opr1 60 100 m ar l = , r osc =1m w 1 consumption (v dd system) step-up circuit current i opr2 1225 m ar l = , r osc =1m w , 2 consumption (vri system) v o =20v static current i q 2 m a tc2=tc1=v o ,ri= 1 oscillation frequency f osc 16 20 24 khz r osc =1m w 1 output impedance r o 250 350 w i o =10ma 1 step-up power conversion peff 90 95 % i o =5ma 1 efficiency (note 2) stabilized output d v reg 0.2 %/v 10v s1f76640 series s1f70000 series epson 2C49 technical manual s1f76640 series measurement circuit (described on s1f76640m0a0) step-up circuit characteristic measurement circuit stabilization circuit characteristic measurement circuit note 1 : all voltage values are based on gnd being 0v. note 2 : the value shown here is the step-up circuit conversion efficiency, and (v o -v reg )i out is lost when the stabilization circuit operates. so, it is recommended to operate this so that (v o -v reg ) becomes as small as possible. when (v o -v reg ) i o is large, the ic temperature rises and the characteristics of the stabilization circuit change. note 3 : see figures 6-5-14, 6-5-15 and 6-5-16. note 4 : r sat means inclination in fig. 6-5-17, and v o - d (v o -v reg ) indicates the lower limit voltage of the v reg output. note 5 : the calculation formula of c t is as follows: c t = v reg (50?c) C v reg (0?c) 1 100 (%/?c) 50?c C 0?c v reg (25?c) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 a a v i opr1 r osc c 2 c 1 c 3 r l i o v o c 4 + + ++ 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 a v a r l v o r 1 r 2 v i (r rv =r 1 +r 2 ) i o .com .com .com .com 4 .com u datasheet
s1f76640 series 2C50 epson s1f70000 series technical manual input leak current measurement circuit 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 a connection to each measurement pin .com .com .com .com 4 .com u datasheet
s1f76640 series s1f70000 series epson 2C51 technical manual s1f76640 series 1000 100 10 1 10 100 1000 10000 30 28 26 24 22 20 18 16 14 12 10 -40 -20 0 20 40 60 80 100 fosc[khz] ta[?c] fosc[kh z ] rosc[k w ] ta=25?c v dd =5v v dd =3v v dd =2v v dd =2v v dd =3v v dd =5v 200 150 100 50 0 20 18 16 14 12 10 8 6 4 2 0 0 1 2 3 4 5 6 0 10 20 30 i opr1 [ m a ] v o [v] v dd [v] i o [ma] f osc =10khz f osc =20khz f osc =40khz ta=25?c c1=c2=2.2 m f c3=10 m f ta=25?c v dd =5v c1 to c4=10 m f 3 times step-up 4 times step-up 2 times step-up characteristics graph (1) oscillation frequency vs. external resistance for oscillation (2) oscillation frequency vs. temperature (3) step-up circuit current consumption vs. input voltage (4) output voltage (v o ) vs. output current 1 .com .com .com .com 4 .com u datasheet
s1f76640 series 2C52 epson s1f70000 series technical manual 12 10 8 6 4 2 0 v o [v] 8 7 6 5 4 3 2 1 0 v o [v] i o [ma] 0 5 10 20 15 i o [ma] 012345678910 ta=25?c v dd =3v c 1 to c 4 =10 m f ta=25?c v dd =3v c 1 to c 4 =10 m f 4 times step-up 3 times step-up 2 times step-up 4 times step-up 3 times step-up 2 times step-up 700 600 500 400 300 200 100 0 r o [ w ] v dd [v] 0 1 2 3456 700 600 500 400 300 200 100 0 r o [ w ] v dd [v] 0 1 2 3456 ta=25?c i o =5ma ta=25?c i o =10ma 4 times step-up 3 times step-up 2 times step-up 3 times step-up 4 times step-up 2 times step-up (5) output voltage (v o ) vs. output current 2 (6) output voltage (v o ) vs. output current 3 (7) output impedance vs. input voltage 1 (8) output impedance vs. input voltage 2 .com .com .com .com 4 .com u datasheet
s1f76640 series s1f70000 series epson 2C53 technical manual s1f76640 series 100 90 80 70 60 50 40 30 20 10 0 peff[%] 150 120 90 60 30 0 i dd [ma] i dd [ma] 100 90 80 70 60 50 40 30 20 10 0 100 90 80 70 60 50 40 30 20 10 0 peff[%] i o [ma] 0102030 i o [ma] 0 5 10 15 20 ta=25?c v dd =5v c 1 to c 4 =10 m f ta=25?c v dd =3v c 1 to c 4 =10 m f 2 times step-up peff 4 times step-up peff 3 times step-up peff 2 times step-up i dd 3 times step-up i dd 4 times step-up i dd 2 times step-up peff 4 times step-up peff 3 times step-up peff 2 times step-up i dd 3 times step-up i dd 4 times step-up i dd 100 90 80 70 60 50 40 30 20 10 0 peff[%] 100 90 80 70 60 50 40 30 20 10 0 peff[%] 50 40 30 20 10 0 i dd [ma] i o [ma] f osc [khz] 01234567 8 10 9 10 1000 100 1 ta=25?c v dd =2v c 1 to c 4 =10 m f ta=25?c v dd =5v c 1 to c 4 =10 m f i o =2ma i o =5ma i o =10ma i o =20ma 2 times step-up peff 4 times step-up peff 3 times step-up peff 3 times step-up i dd 2 times step-up i dd 4 times step-up i dd (9) step-up power conversion efficiency vs. output current 1 input current vs. output current 1 (10) step-up power conversion efficiency vs. output current 2 input current vs. output current 2 (11) step-up power conversion efficiency vs. output current 3 input current vs. output current 3 (12) step-up power conversion efficiency - os vs.illation frequency 1 .com .com .com .com 4 .com u datasheet
s1f76640 series 2C54 epson s1f70000 series technical manual (13) step-up power conversion (14) step-up power conversion efficiency vs. oscillation frequency 2 efficiency vs. oscillation frequency 3 (15) step-up start voltage (1) vs. load resistance (16) stabilization output saturation resistance vs. load current 100 90 80 70 60 50 40 30 20 10 0 peff[%] 10 1 100 1000 fosc[khz] 100 90 80 70 60 50 40 30 20 10 0 peff[%] 10 1 100 1000 fosc[khz] ta=25?c v dd =3v c 1 to c 4 =10 m f i o =10ma i o =2ma i o =5ma ta=25?c v dd =2v c 1 to c 4 =10 m f i o =5ma i o =2ma i o =1ma i o =0.5ma i o =1ma 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 v sta1 [v] 0.5 0.4 0.3 0.2 0.1 0 v reg ? o [v] 100 1000 10000 100000 r l [ w ] i o [ma] 0 5 10 15 20 25 30 ta=25?c c 1 to c 4 =10 f r osc =1m v o =8v v o =12v v o =20v ta=25?c c 1 to c 4 =10 m f .com .com .com .com 4 .com u datasheet
s1f76640 series s1f70000 series epson 2C55 technical manual s1f76640 series (17) output voltage (v reg ) vs. output current 1 (18) output voltage (v reg ) vs. output current 2 (19) output voltage (v reg ) vs. output current 3 (20) reference voltage vs. temperature 8.00 7.95 7.90 7.85 v reg [v] i reg [ma] 0.1 1.0 10.0 100.0 6.00 5.95 5.90 5.85 v reg [v] i reg [ma] 0.1 1.0 10.0 100.0 ta=25?c v o =20v ta=25?c v o =12v 4.00 3.95 3.90 3.85 v reg [v] 50 40 30 20 10 0 ?0 ?0 ?0 ?0 ?0 v reg (ta)? reg (25?c) ? 100[v] v reg (25?c) i reg [ma] 0.1 1.0 10.0 100.0 ?0 ?0 0 20 40 60 80 100 ta[?c] c t0 c t2 c t1 ta=25?c v o =8v .com .com .com .com 4 .com u datasheet
s1f76640 series 2C56 epson s1f70000 series technical manual mechanical data plastic ssop2-16pin unit : mm +0.007 ?.008 (0.002) 0.05 (0.016) 0.4 (0.014 0.36 0.1 +0.004 ?.003 ) (0.059 0.003) 1.5 0.1 (0.066max.) 1.7max. (0.173 4.4 0.2 ?.007 +0.008 ) (0.244 0.011) 6.2 0.3 (0.275max.) 7max. ) (0.260 6.6 0.2 (0.006 0.15 0.05 0.5 0.2 0.9(0.035) +0.003 ?.002 ) (0.02 +0.007 ?.008 ) index 0? 10? 16 1 9 8 0.8 (0.031) reference note : this dimensional drawing is subject to change without notice for improvement. .com .com .com .com 4 .com u datasheet
s1f76640 series s1f70000 series epson 2C57 technical manual s1f76640 series application example 2 times step-up, 3 times step-up and 4 times step-up figure 8.1 shows the connection for getting 4 times step-up output of an input voltage by operating the step-up circuit only. in case of 3 times step-up, the capacitor c 3 is removed and cap3+ (pin no. 14) is short-circuited to v o (pin no. 15), and 3 times step-up voltage is obtained from v o (cap3+). in case of 2 times step-up, the capacitor c 2 is also removed and cap2+ (pin no. 13) is short-circuited to v o (pin no. 15), and 2 times step-up voltage (10v) is obtained from v o (cap2+). figure 8-1 4 times step-up circuit 4 times step-up + stabilization circuit figure 8-2 shows an application example for stabilizing step-up outputs obtained in 8-(1) through the stabilization circuit and for providing temperature gradient to v reg output by means of the temperature gradient selection cir- cuit. in this application example, both outputs from v o and v reg can be indicated at the same time. also, operation of 3 times step-up + stabilization circuit is possible by using the 3 times step-up operation mentioned in 8- (1), and operation of 2 times step-up + stabilization circuit is possible by using the 2 times step-up operation. figure 8-2 operation of 4 times step-up + stabilization circuit (temperature gradient ct1 is selected.) note 1 : since input impedance at the rv pin (no. 1) is high, it is necessary to use a shielded wire as a measure against noise in case of a long connection. it is also effective to make the r rv value small for reducing noise influence. (in this case, however, more current comes to be consumed at r rv .) c 1 v i c 2 c 3 c 4 4v i + + + + rv v reg tc1 tc2 p off v ss osc1 osc2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 v ri v o cap3+ cap2+ cap2 cap1+ cap1 v dd rv v reg tc1 tc2 p off v ss osc1 osc2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 v ri v o cap3+ cap2+ cap2 cap1+ cap1 v dd c 2 c 5 + c 1 + c 3 + c 4 v i r 1 r 1 r 1 +r 2 r 2 + + note 1 v reg = ? rv v reg (r rv =r 1 +r 2 ) note 2 .com .com .com .com 4 .com u datasheet
s1f76640 series 2C58 epson s1f70000 series technical manual parallel connection it is possible to make the output impedance r o small when several pieces of the circuit shown in figure 8.1 are connected. parallel connection of n circuits reduces r o to 1/n approximately. one piece of the smoothing capaci- tor c 4 can be commonly used in the same way. to get stabilized outputs after parallel connection, include 1 pieces of the circuit shown in figure 8.2 in the parallel connection of n circuits as shown in figure 8.3. figure 8.3 parallel connection series connection when s1f76640 is connected in series (v dd and v o in the previous stage are connected to gnd and v dd in the next stage respectively), the output voltage can be increased more. but the series connection makes the output impedance high. figure 8.4 shows an example of the series connection to get v o =25v from v dd =5v and to stabilize it. figure 8.4 series connection rv v reg tc1 tc2 p off v ss osc1 osc2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 v ri v o cap3+ cap2+ cap2 cap1+ cap1 v dd rv v reg tc1 tc2 p off v ss osc1 osc2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 v ri v o cap3+ cap2+ cap2 cap1+ cap1 v dd c 3 c 2 c 2 c 1 c 1 c 4 c 3 + + + + + + + v reg r rv (100k w =1m w ) + + + + + + rv v reg tc1 tc2 p off v ss osc1 osc2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 v ri v o cap3+ cap2+ cap2 cap1+ cap1 v dd rv v reg tc1 tc2 p off v ss osc1 osc2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 v ri v o cap3+ cap2+ cap2 cap1+ cap1 v dd c 1 d 1 load .com .com .com .com 4 .com u datasheet
s1f76640 series s1f70000 series epson 2C59 technical manual s1f76640 series note 1 : precautions on load connection when a load is connected between gnd in the first stage (or potential below gnd in the second stage other than that) and v reg in the second stage as shown in figure 8.4, pay attention to the following. when a normal output is not available at the v reg pin at the starting time or when the p off signal turns off v reg , current may flows from gnd in the first stage (or potential below gnd in the second stage other than that) to the v reg pin in the second stage through the load and a voltage higher than the absolute maximum rating below gnd in the second stage may be generated at the v reg pin. as a result, the ic may not work normally. for series connection, connect the diode d1 between v dd and v reg in the second stage as shown in figure 8.4, so that no potential below gnd in the second stage is added to the v reg pin. note 2 : figure 8.4 shows 3 times step-up in the first stage and 4 times step-up in the next stage, but 4 times step- up is possible both in the first stage and in the next stage unless the input voltage v dd -gnd exceeds the specification value (6.0v). this means that each ic in this series connection is requested t satisfy the specification values (v dd -gnd 6, 0v, v o -gnd 24v). (see figure 8.5.) figure 8.5 power supply system in series connection note 3 : 2 times step-up in the first stage allows using the cap- output in the first stage as the next stage clock, but 3 times step-up does not. attach an external r osc as the next stage clock for internal oscillation. also, since the next stage external clock can operate according the cap- output in the previous stage as shown in table 4.1 only when the temperature gradient c t is -0.6%/?c, use the internal oscillator in the same way when other temperature gradients are necessary. note 4 : in case of series connection, the voltage v dd -v reg (v reg -v dd in figure 8.5) of the ic, for which the stabilization circuit operates, has temperature gradient. this means that v reg changes at the following rate as temperature changes: d v reg = c t (v reg (25?c) C gnd) d t v dd g nd v o max. 6.0v v dd ' g nd ' v o ' v reg ' first stage next stage .com .com .com .com 4 .com u datasheet
s1f76640 series 2C60 epson s1f70000 series technical manual negative voltage conversion s1f76640 can boost input voltage to negative power on the negative potential side by using the circuit shown in figure 8.6. (in case of 3 times step-up, remove the capacitor c 3 and the diode d 4 and short-circuit the both ends of d 4 . in case of 2 times step-up, remove the capacitor c 2 and the diode d 3 and short-circuit the both ends of d 3 .) but the output voltage drops by the forward voltage v f of the diode. when gnd is 0v, v dd is 5v and vf is 0.6v as shown in figure 8.6 for example, v o is calculated as follows: v o = C15vC4 0.6v = C12.6v(in case of 3 times step-up, v o is calculated to C10vC3 0.6v = C8.2v, and in case of 2 times step-up, v o is calculated to C5vC2 0.6v = C3.8v.) figure 8.6 negative voltage conversion (example of 3 times step-up circuit) negative voltage conversion + positive voltage conversion when the 3 times step-up operation shown in figure 8.1 and the positive voltage conversion in figure 8.6 are combined, the circuit shown in figure 8.7 can be formed and 20v and C12.6v can be obtained from the input 5v. however, the output impedance is higher than in case of connection of either one only (the negative voltage conver- sion or the positive voltage conversion). figure 8.7 negative voltage conversion + positive voltage conversion rv v reg tc1 tc2 p off v ss osc1 osc2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 v ri v o cap3+ cap2+ cap2 cap1+ cap1 v dd d 3 d 2 d 1 v o ' c 0 c 1 c 2 + + + rv v reg tc1 tc2 p off v ss osc1 osc2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 v ri v o cap3+ cap2+ cap2 cap1+ cap1 v dd v o ' v o ' + + + + + + .com .com .com .com 4 .com u datasheet
s1f76640 series s1f70000 series epson 2C61 technical manual s1f76640 series example of temperature gradient change by external temperature sensor (ther- mistor) s1f76640 has a temperature gradient selection circuit inside the stabilization circuit, and three kinds of tempera- ture gradients, C0.20%/?c, C0.40%/?c and C0.60%/?c, can be selected as the v reg output. when other temperature gradients are necessary, a thermistor is connected in series to the resistor r rv for output voltage regulation as shown in figure 8.8, and temperature gradients can be changed to any values. figure 8.8 example of temperature gradient change (pins other than the above pins 1, 2 and 6 are connected as per figure 5.2. for pins 3 and 4, smaller temperature gradients than those to be changed are selected from table 4.1 and are set.) note 1 : relations among the thermistor, rt and v reg are expressed as follows: v reg = r rv + r t v rv r 1 when a thermistor is used for rt, it can make the temperature gradient of v reg larger.. note 2 : the thermistor temperature characteristics are non-linear but can be corrected to linear ones when the resistor rp is connected to the thermistor in parallel. 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 rv v reg v ss r p r 1 r t v reg r rv .com .com .com .com 4 .com u datasheet
s1f76640 series 2C62 epson s1f70000 series technical manual configuration example of voltage stabilized output (v reg ) electronic volume circuit figure 8.9 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 v ri (74hc4051) 13 14 15 12 1 5 2 4 11 10 9 6 16 78 3 ctrl0 xpof (v dd /v ss ) ctrl1 v ss or v o v ss or v o negative voltage input voltage stabilized output (v reg ) positive voltage input ctrl2 v o cap3+ cap2+ cap2 cap1+ cap1 v dd rv v reg tc1 tc2 p off v ss osc1 osc2 + + + + in0 in1 in2 in3 in4 in5 in6 in7 v cc v ee v ss com inh a b c .com .com .com .com 4 .com u datasheet
s1f76640 series s1f70000 series epson 2C63 technical manual s1f76640 series configuration example of high magnification step-up circuit with diode s1f76640, if an external diode is attached, can realize 5 times or more step-up operation and voltage stabilized output. since the forward voltage drop v f of the diode makes the output impedance of the step-up output higher, it is recommended to use a diode of small v f . figure 8.10 shows a configuration example of a circuit with 2 diodes, which realizes 6 times step-up operation and voltage stabilized output. make the wire between v o and v ri as short as possible. figure 8.11 shows the potential relations diagram by the way, use the voltage applied to the v ri pin below the absolute maximum rated voltage. figure 8.10 configuration example of 6 times step-up circuit with diode figure 8.11 potential relations diagram of 6 times step-up circuit with diode 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 v ri v o cap3+ cap2+ cap2 cap1+ cap1 v dd rv v reg v ss or v o v ss or v o c 2 c 1 + + + + + + c 3 c 4 c 5 c 6 tc1 tc2 p off v ss osc1 osc2 v dd v ss v i 2 ?v f 4 ?v i 6 ?v 1 6 ?v i ? ?v f v o ' v o .com .com .com .com 4 .com u datasheet
3. voltage regulator .com .com .com .com 4 .com u datasheet
s1f78100y series s1f70000 series epson 3C1 technical manual s1f78100y series description sci78100y series is a fixed type positive voltage regu- lator developed by using the cmos silicon gate process and is composed of a low current consumption refer- ence voltage circuit, a differential amplifier, an output control transistor and a voltage setting resistor. the output voltage is fixed inside the ic, and various standard voltage parts are available. the package is a sot89-3pin plastic package. v dd (2pin) v ss (1pin) v o (3pin) v ref + features ? ample lineup : 12 kinds are available in the range from 2v to 6v. ? low current consumption : typ. 3.0 m a (v dd =5.0v) ? small difference between input and output voltages : typ. 0.25v (i o = C10ma, v o =5.0v) ? built-in highly stable reference voltage source : typ. 1.0v ? small output voltage temperature coefficient : typ. +100ppm/?c ? wide operating voltage range : 15v max. block diagram s1f78100y series cmos positive voltage regulators .com .com .com .com 4 .com u datasheet
s1f78100y series 3C2 epson s1f70000 series technical manual pin descriptions pin no. pin name description 1v ss input voltage pin (minus side) 2v dd input voltage pin (plus side) 3v o output voltage pin pin assignments 12 sot89-3pin 3 .com .com .com .com 4 .com u datasheet
s1f78100y series s1f70000 series epson 3C3 technical manual s1f78100y series functional descriptions s1f78100y series is a fixed positive output type volt- age regulator of series regulator system and is fitted with an output control mos transistor between the in- put and output pins as shown in the figure below. the voltage regulator feeds back voltages (v reg ) divided with the built-in resistors r 1 and r 2 connected between v dd (2pin) v ss (1pin) v o (3pin) r2 r1 v ref + (v reg ) (output control transistor) (operational amplifier) the output pin (v o pin) and the v ss pin to compare them with the reference voltage (v ref ) and outputs the stable output voltage (v 0 ) not depending on input volt- age by controlling the gate voltage of the output control transistor. the output voltage is fixed inside and is de- cided with the following formula: v o = r 1 +r 2 v ref r 1 .com .com .com .com 4 .com u datasheet
s1f78100y series 3C4 epson s1f70000 series technical manual product output voltage min. typ. max. s1f78100y2a0 5.75 6.00 6.25 s1f78100y2b0 4.90 5.00 5.10 s1f78100y2m0 4.40 4.50 4.60 s1f78100y2p0 3.90 4.00 4.10 s1f78100y2k0 3.80 3.90 4.00 s1f78100y2n0 3.43 3.50 3.57 s1f78100y2t0 3.23 3.30 3.37 s1f78100y2c0 3.13 3.20 3.27 s1f78100y2d0 2.93 3.00 3.07 s1f78100y2r0 2.73 2.80 2.87 s1f78100y2l0 2.53 2.60 2.67 s1f78100y2f0 2.15 2.20 2.25 s1f78100y2g0 1.75 1.80 1.85 s1f78100y2h0 1.45 1.50 1.55 lineup note : other output voltages than those listed in the above table are also applicable. .com .com .com .com 4 .com u datasheet
s1f78100y series s1f70000 series epson 3C5 technical manual s1f78100y series recommended operating conditions parameter symbol min. typ. max. unit input voltage v dd Cv ss CC15 v output current i o 0.01 C C ma parameter symbol rating unit input voltage v dd Cv ss 21 v output voltage v o v dd +0.3 to v ss -0.3 output current i o 100 ma allowable loss p d 200 mw operating temperature topr C40 to +85 ?c storage ambient tstg C65 to +150 temperature soldering temperature tsol 260 ? 10 ?c ? s and time (at leads) absolute maximum ratings .com .com .com .com 4 .com u datasheet
s1f78100y series 3C6 epson s1f70000 series technical manual electrical characteristics s1f78100y2a0 (unless otherwise specified, ta ranges from C40?c to +85?c.) parameter symbol conditions (v ss =0.0v) min. typ. max. unit input voltage v i 15v output voltage v o v dd =8.0v, i o =C10ma 5.75 6.00 6.25 v ta=25?c current consumption i opr v dd =6.0v to 15.0v, no load 3.0 8.0 m a difference between input v i Cv o v o =6.0v, i o =C10ma 0.24 0.38 v and output voltages output voltage d v o 0 +100 +200 ppm/?c temperature characteristic v o ta= C30?c to +85?c input stability d v o (same temperature condition) 0.1 %/v d v i v o v dd =7.0v to 15.0v i o =C10ma ta= C30?c to +85?c load stability d v o (same temperature condition) 50mv v dd =8.0v i o =C1ma to C50ma supply voltage rejection p srr v dd =8.0v, fin=40khz C40 db ratio c l =10 m f, i o =C5ma s1f78100y2b0 (unless otherwise specified, ta ranges from C40?c to +85?c.) parameter symbol conditions (v ss =0.0v) min. typ. max. unit input voltage v i 15v output voltage v o v dd =7.0v, i o =C10ma 4.90 5.00 5.10 v ta=25?c current consumption i opr v dd =5.0v to 15.0v, no load 3.0 8.0 m a difference between input v i Cv o v o =5.0v, i o =C10ma 0.25 0.40 v and output voltages output voltage d v o 0 +100 +200 ppm/?c temperature characteristic v o ta=C30?c to +85?c input stability d v o (same temperature condition) 0.1 %/v d v i v o v dd =6.0v to 15.0v i o =C10ma ta= C30?c to +85?c load stability d v o (same temperature condition) 50mv v dd =7.0v i o =C1ma to C50ma supply voltage rejection p srr v dd =7.0v, fin=40khz C40 db ratio c l =10 m f, i o =C5ma .com .com .com .com 4 .com u datasheet
s1f78100y series s1f70000 series epson 3C7 technical manual s1f78100y series s1f78100y2m0 (unless otherwise specified, ta ranges from C40?c to +85?c.) parameter symbol conditions (v ss =0.0v) min. typ. max. unit input voltage v i 15 v output voltage v o v dd =6.0v, i o = C10ma 4.40 4.50 4.60 v ta=25?c current consumption i opr v dd =4.5v to 15.0v, no load 3.0 8.0 m a difference between input v i Cv o v o =4.5v, i o = C10ma 0.26 0.42 v and output voltages output voltage d v o 0 +100 +200 ppm/?c temperature characteristic v o ta= C30?c to +85?c input stability d v o (same temperature condition) 0.1 %/v d v i v o v dd =6.0v to 15.0v i o = C10ma ta= C30?c to +85?c load stability d v o (same temperature condition) 40mv v dd =6.0v i o = C1ma to C40ma supply voltage rejection p srr v dd =6.0v, fin=40khz C40 db ratio c l =10 m f, i o = C5ma parameter symbol conditions (v ss =0.0v) min. typ. max. unit input voltage v i 15 v output voltage v o v dd =6.0v, i o = C10ma 3.90 4.00 4.10 v ta=25?c current consumption i opr v dd =4.0v to 15.0v, no load 3.0 8.0 m a difference between input v i Cv o v o =4.0v, i o = C10ma 0.27 0.44 v and output voltages output voltage d v o 0 +100 +200 ppm/?c temperature characteristic v o ta= C30?c to +85?c input stability d v o (same temperature condition) 0.1 %/v d v i v o v dd =5.0v to 15.0v i o =C10ma ta= C30?c to +85?c load stability d v o (same temperature condition) 40mv v dd =6.0v i o = C1ma to C40ma supply voltage rejection p srr v dd =6.0v, fin=40khz C40 db ratio c l =10 m f, i o = C5ma s1f78100y2p0 (unless otherwise specified, ta ranges from C40?c to +85?c.) .com .com .com .com 4 .com u datasheet
s1f78100y series 3C8 epson s1f70000 series technical manual s1f78100y2k0 (unless otherwise specified, ta ranges from C40?c to +85?c.) parameter symbol conditions (v ss =0.0v) min. typ. max. unit input voltage v i 15v output voltage v o v dd =6.0v, i o =C10ma 3.80 3.90 4.00 v ta=25?c current consumption i opr v dd =3.9v to 15.0v, no load 3.0 8.0 m a difference between input v i Cv o v o =3.9v, i o =C10ma 0.27 0.44 v and output voltages output voltage d v o 0 +100 +200 ppm/?c temperature characteristic v o ta= C30?c to +85?c input stability d v o (same temperature condition) 0.1 %/v d v i v o v dd =5.0v to 15.0v i o =C10ma ta= C30?c to +85?c load stability d v o (same temperature condition) 40mv v dd =6.0v i o =C1ma to C40ma supply voltage rejection p srr v dd =6.0v, fin=40khz C40 db ratio c l =10 m f, i o =C5ma s1f78100y2n0 (unless otherwise specified, ta ranges from C40?c to +85?c.) parameter symbol conditions (v ss =0.0v) min. typ. max. unit input voltage v i 15v output voltage v o v dd =5.0v, i o =C10ma 3.43 3.50 3.57 v ta=25?c current consumption i opr v dd =3.5v to 15.0v, no load 3.0 8.0 m a difference between input v i Cv o v o =3.5v, i o = C10ma 0.29 0.48 v and output voltages output voltage d v o 0 +100 +200 ppm/?c temperature characteristic v o ta= C30?c to +85?c input stability d v o (same temperature condition) 0.1 %/v d v i v o v dd =5.0v to 15.0v i o =C10ma ta= C30?c to +85?c load stability d v o (same temperature condition) 30mv v dd =5.0v i o =C1ma to C30ma supply voltage rejection p srr v dd =5.0v, fin=40khz C40 db ratio c l =10 m f, i o =C5ma .com .com .com .com 4 .com u datasheet
s1f78100y series s1f70000 series epson 3C9 technical manual s1f78100y series s1f78100y2t0 (unless otherwise specified, ta ranges from C40?c to +85?c.) parameter symbol conditions (v ss =0.0v) min. typ. max. unit input voltage v i 15 v output voltage v o v dd =5.0v, i o = C10ma 3.23 3.30 3.37 v ta=25?c current consumption i opr v dd =3.3v to 15.0v, no load 3.0 8.0 m a difference between input v i Cv o v o =3.3v, i o = C10ma 0.30 0.50 v and output voltages output voltage d v o 0 +100 +200 ppm/?c temperature characteristic v o ta= C30?c to +85?c input stability d v o (same temperature condition) 0.1 C %/v d v i v o v dd =4.0v to 15.0v i o = C10ma ta= C30?c to +85?c load stability d v o (same temperature condition) 30 Cmv v dd =5.0v i o = C1ma to C30ma supply voltage rejection p srr v dd =5.0v, fin=40khz C40 db ratio c l =10 m f, i o = C5ma s1f78100y2c0 (unless otherwise specified, ta ranges from C40?c to +85?c.) parameter symbol conditions (v ss =0.0v) min. typ. max. unit input voltage v i 15 v output voltage v o v dd =5.0v, i o = C10ma 3.13 3.20 3.27 v ta=25?c current consumption i opr v dd =3.2v to 15.0v, no load 3.0 8.0 m a difference between input v i Cv o v o =3.2v, i o = C10ma 0.30 0.50 v and output voltages output voltage d v o 0 +100 +200 ppm/?c temperature characteristic v o ta=C30?c to +85?c input stability d v o (same temperature condition) 0.1 %/v d v i v o v dd =4.0v to 15.0v i o = C10ma ta= C30?c to +85?c load stability d v o (same temperature condition) 30mv v dd =5.0v i o = C1ma to C30ma supply voltage rejection p srr v dd =5.0v, fin=40khz C40 db ratio c l =10 m f, i o = C5ma .com .com .com .com 4 .com u datasheet
s1f78100y series 3C10 epson s1f70000 series technical manual s1f78100y2d0 (unless otherwise specified, ta ranges from C40?c to +85?c.) parameter symbol conditions (v ss =0.0v) min. typ. max. unit input voltage v i 15v output voltage v o v dd =5.0v, i o =C10ma 2.93 3.00 3.07 v ta=25?c current consumption i opr v dd =3.0v to 15.0v, no load 3.0 8.0 m a difference between input v i Cv o v o =3.0v, i o =C10ma 0.31 0.52 v and output voltages output voltage d v o 0 +100 +200 ppm/?c temperature characteristic v o ta= C30?c to +85?c input stability d v o (same temperature condition) 0.1 %/v d v i v o v dd =4.0v to 15.0v i o =C10ma ta= C30?c to +85?c load stability d v o (same temperature condition) 30mv v dd =5.0v i o =C1ma to C30ma supply voltage rejection p srr v dd =5.0v, fin=40khz C40 db ratio c l =10 m f, i o =C5ma s1f78100y2r0 (unless otherwise specified, ta ranges from C40?c to +85?c.) parameter symbol conditions (v ss =0.0v) min. typ. max. unit input voltage v i 15v output voltage v o v dd =5.0v, i o =C10ma 2.73 2.80 2.87 v ta=25?c current consumption i opr v dd =2.8v to 15.0v, no load 3.0 8.0 m a difference between input v i Cv o v o =2.8v, i o =C10ma 0.32 0.54 v and output voltages output voltage d v o 0 +100 +200 ppm/?c temperature characteristic v o ta= C30?c to +85?c input stability d v o (same temperature condition) 0.1 %/v d v i v o v dd =4.0v to 15.0v i o =C10ma ta= C30?c to +85?c load stability d v o (same temperature condition) 30mv v dd =5.0v i o =C1ma to C30ma supply voltage rejection p srr v dd =5.0v, fin=40khz C40 db ratio c l =10 m f, i o =C5ma .com .com .com .com 4 .com u datasheet
s1f78100y series s1f70000 series epson 3C11 technical manual s1f78100y series s1f78100y2l0 (unless otherwise specified, ta ranges from C40?c to +85?c.) parameter symbol conditions (v ss =0.0v) min. typ. max. unit input voltage v i 15 v output voltage v o v dd =5.0v, i o = C10ma 2.53 2.60 2.67 v ta=25?c current consumption i opr v dd =2.6v to 15.0v, no load 3.0 8.0 m a difference between input v i Cv o v o =2.6v, i o = C10ma 0.33 0.56 v and output voltages output voltage d v o 0 +100 +200 ppm/?c temperature characteristic v o ta= C30?c to +85?c input stability d v o (same temperature condition) 0.1 %/v d v i v o v dd =4.0v to 15.0v i o = C10ma ta= C30?c to +85?c load stability d v o (same temperature condition) 30mv v dd =5.0v i o = C1ma to C40ma supply voltage rejection p srr v dd =5.0v, fin=40khz C40 db ratio c l =10 m f, i o = C5ma s1f78100y2f0 (unless otherwise specified, ta ranges from C40?c to +85?c.) parameter symbol conditions (v ss =0.0v) min. typ. max. unit input voltage v i 15v output voltage v o v dd =3.0v, i o =C10ma 2.15 2.20 2.25 v ta=25?c current consumption i opr v dd =2.2v to 15.0v, no load 3.0 8.0 m a difference between input v i Cv o v o =2.2v, i o = C5ma 0.36 0.62 v and output voltages output voltage d v o 0 +100 +200 ppm/?c temperature characteristic v o ta=C30?c to +85?c input stability d v o (same temperature condition) 0.1 %/v d v i v o v dd =3.0v to 15.0v i o =C10ma ta= C30?c to +85?c load stability d v o (same temperature condition) 20mv v dd =3.0v i o =C1ma to C10ma supply voltage rejection p srr v dd =3.0v, fin=40khz C 40 db ratio c l =10 m f, i o =C5ma .com .com .com .com 4 .com u datasheet
s1f78100y series 3C12 epson s1f70000 series technical manual s1f78100y2g0 (unless otherwise specified, ta ranges from C40?c to +85?c.) parameter symbol conditions (v ss =0.0v) min. typ. max. unit input voltage v i 15v output voltage v o v dd =3.0v, i o =C1ma 1.75 1.80 1.85 v ta=25?c current consumption i opr v dd =2.2v to 15.0v, no load 3.0 8.0 m a difference between input v i Cv o v o =1.8v, i o =C1ma 0.075 0.18 v and output voltages output voltage d v o 0 +100 +200 ppm/?c temperature characteristic v o ta= C30?c to +85?c input stability d v o (same temperature condition) 0.1 %/v d v i v o v dd =3.0v to 15.0v i o =C10ma ta= C30?c to +85?c load stability d v o (same temperature condition) 20mv v dd =3.0v i o =C1ma to C10ma supply voltage rejection p srr v dd =3.0v, fin=40khz C40 db ratio c l =10 m f, i o =C5ma s1f78100y2h0 (unless otherwise specified, ta ranges from C40?c to +85?c.) parameter symbol conditions (v ss =0.0v) min. typ. max. unit input voltage v i 15v output voltage v o v dd =3.0v, i o =C1ma 1.45 1.50 1.55 v ta=25?c current consumption i opr v dd =2.2v to 15.0v, no load 3.0 8.0 m a difference between input v i Cv o v o =1.5v, i o =C1ma 0.18 0.5 v and output voltages output voltage d v o 0 +100 +200 ppm/?c temperature characteristic v o ta= C30?c to +85?c input stability d v o (same temperature condition) 0.1 %/v d v i v o v dd =3.0v to 15.0v i o =C10ma ta= C30?c to +85?c load stability d v o (same temperature condition) 20mv v dd =3.0v i o =C1ma to C10ma supply voltage rejection p srr v dd =3.0v, fin=40khz C40 db ratio c l =10 m f, i o =C5ma .com .com .com .com 4 .com u datasheet
s1f78100y series s1f70000 series epson 3C13 technical manual s1f78100y series note : circuit diagram for measuring supply voltage rejection ratio characteristic f in =50khz v dd v dd v ss v o c l i l c l =10 fi l =10ma s1f78100y series .com .com .com .com 4 .com u datasheet
s1f78100y series 3C14 epson s1f70000 series technical manual example of reference external connection mechanical data s1f78100y sot89-3pin (2pin) (3pin) s1f78100y series v dd v o v ss (1pin) c in c out input voltage output voltage 12 1.5 0.48max. 0.48max. 0.53max. 1.5 3 1.8max. 4.5 0.1 4.25max. 2.5 0.1 1.5 0.1 0.4 0.8min. 0.44max. 0.44max. (unit : mm) reference .com .com .com .com 4 .com u datasheet
s1f78100y series s1f70000 series epson 3C15 technical manual s1f78100y series characteristics graph s1f78100y2b0 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 i opr ?a i opr [ a] (v o ? i )[a] 6.0 5.0 4.0 3.0 2.0 1.0 0.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 i opr [ a] ta [?c] v i [v] i opr ? i v dd =7v ?0 0 5 10 15 ?0 0 20 40 60 ?0 ?0 ?0 ?0 ?0 ?0 0 ?0 0 20 40 60 80 100 80 100 ta=25?c i o =0ma ta [?c] v dd =4.9v i o = ?0ma i o = ?0ma 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 (v i ? o )? o (v o ? i )?a (v i ? o )[v] i o [ma] ta=25?c v dd =4.9v .com .com .com .com 4 .com u datasheet
s1f78100y series 3C16 epson s1f70000 series technical manual 5.5 5.0 4.5 v o [v] 6.0 5.0 4.0 3.0 2.0 1.0 0.0 v o [v] v i [v] v o ? i 0 5 10 15 ?0 ?0 0 20 40 60 80 100 i o =?0ma i o = ?0ma ta=25?c ta [?c] v dd =7v v o ?a ?0 ?0 ?0 ?0 ?0 0 5.5 5.3 5.1 4.9 4.7 4.5 v o ? o v o [v] i o [ma] ta=25?c v dd =7v 40 30 20 10 0 ? v o [mv] ?0 ?0 0 20 40 60 80 100 ta [?c] ? v o ?a v dd =7v ?0ma i o ?ma .com .com .com .com 4 .com u datasheet
s1f78100y series s1f70000 series epson 3C17 technical manual s1f78100y series s1f78100y2g0 (v o ? i )[v] i opr [ a] 6.0 5.0 4.0 3.0 2.0 1.0 0.0 i opr [ a] v i [v] i opr ? i i opr ?a 0 5 10 15 ?0 ?0 0 20 40 60 80 100 ta [?c] v dd =1.75v i o = ?ma i o = ?ma (v i ? o )?a ?0 ? ? ? ? 0 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 (v i ? o )? o (v i ? o )[v] i o [ma] ta=25?c v dd =1.75v 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 ?0 ?0 0 20 40 60 80 100 ta [?c] v dd =3v ta=25?c i o =0ma .com .com .com .com 4 .com u datasheet
s1f78100y series 3C18 epson s1f70000 series technical manual ?0 ? ? ? ? 0 2.5 2.0 1.5 v o ? o v o [v] i o [ma] ta=25?c v dd =3v 5 4 3 2 1 0 ? v o [mv] ?0 ?0 0 20 40 60 80 100 ta [?c] v dd =3v ?0ma 10 ?ma ? v o ?a ?0 ?0 0 20 40 60 80 100 2.0 1.5 v o [v] ta [?c] v o ?a v dd =3v 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 v o [v] v i [v] v o ? i 0 5 10 15 i o = ?0ma i o = ?0ma i o =?ma ta=25?c .com .com .com .com 4 .com u datasheet
s1f78100y series s1f70000 series epson 3C19 technical manual s1f78100y series s1f78100y2h0 i opr [ a] 6.0 5.0 4.0 3.0 2.0 1.0 0.0 i opr [ a] v i [v] i opr ? i i opr ?a 0 5 10 15 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 ?0 ?0 0 20 40 60 80 100 ta [?c] v dd =3v ta=25?c i o =0ma (v o ? i )[v] 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 (v i ? o )[v] i o [ma] (v o ? i )? o (v o ? i )?a ? ? ? ? ? 0 1.2 1.0 0.8 0.6 0.4 0.2 0.0 ?0 ?0 0 20 40 60 80 100 ta [?c] v dd =1.45v i o =?mv i o = ?mv ta=25?c v dd =1.45v .com .com .com .com 4 .com u datasheet
s1f78100y series 3C20 epson s1f70000 series technical manual 2.0 1.5 1.0 v o [v] ?0 ?0 0 20 40 60 80 100 ta [?c] v dd =3v v o ?a ? v o [mv] ?0 ?0 0 20 40 60 80 100 ta [?c] v dd =3v 1ma i o 30ma ? v o ?a 5 4 3 2 1 0 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 v o [v] v i [v] v o ? i 0 5 10 15 i o = ?0ma i o = ?0ma i o =?ma ta=25?c ?0 ? ? ? ? 0 2.0 1.8 1.6 1.4 1.2 1.0 v o ? o v o [ v] i o [ma] ta=25?c v dd =3v .com .com .com .com 4 .com u datasheet
s1f79100y series s1f70000 series epson 3C21 technical manual s1f79100y series description s1f79100y series voltage regulators provide step- down and stabilization for an input voltage to a speci- fied fixed voltage. the four devices in the series incor- porate a precision, power-saving reference voltage gen- erator, a transistorized differential amplifier and resis- tors for determining the output voltage. the s1f79100y series is available in 3-pin plastic sot89s. features ? ample lineup : 5 kinds are available in the range from C1.5v to C5v. ? small difference between input and output voltage : typ. 0.17v (i o =10ma, v o =C5.0v) applications ? fixed-voltage power supplies for battery-operated equipment such as portable video cassette recorders, video cameras and radios ? fixed-voltage power supplies for communications equipment ? high-stability reference voltage generators s1f79100y series cmos negative voltage regulators lineup block diagram v ref gnd (2 pin) v o (3 pin) v i (1 pin) + pin assignments 1 v i 2 gnd s1f79100y series 3 v o product voltage (v) current consumption operating temperature input output ( m a) ( c) s1f79100y1h0 C1.5 4.0 s1f79100y1g0 C1.8 4.0 s1f79100y1d0 C15 C3.0 4.0 C40 to +85 s1f79100y1p0 C4.0 4.0 s1f79100y1b0 C5.0 4.0 ? built-in highly stable reference voltage source : typ. C1.0v ? small output voltage temperature coefficient : typ. C 100ppm/?c ? wide operating voltage range : 15v max. .com .com .com .com 4 .com u datasheet
s1f79100y series 3C22 epson s1f70000 series technical manual pin descriptions specifications absolute maximum ratings electrical characteristics s1f79100y1h0 pin no. pin name description 1v i input voltage 2 gnd ground 3v o output voltage parameter symbol rating unit input voltage v i Cgnd C21 v output voltage v o gnd + 0.3 to v i C 0.3 v output current i o 100 ma power dissipation p d 200 mw operating temperature range topr C40 to +85 c storage temperature range tstg C65 to +150 c soldering temperature (for 10 s). see note. tsol 260 c note temperatures during reflow soldering must remain within the limits set out in lsi device precautions. never use solder dip to mount s1f70000 series power supply devices. (ta = C40 c to +85 c) parameter symbol conditions (gnd = 0.0v) rating unit min. typ. max. input voltage v i C15.0 v output voltage v o v i = C3.0v, i o = 10ma C1.57 C1.50 C1.43 v ta = 25 c operating current i opr v i = C1.5v to C15v 4.0 18.0 m a input/output voltage |v i C v o |v i = C1.5v, i o = 5ma 0.25 0.60 v differential input voltage stabilization d v o v i = C3.0v to C15.0v, 0.10 %/v ratio d v i ? v o i o = 5ma output voltage drift d v o v i = C3.0v, 20.0 mv i o = 1ma to 5ma .com .com .com .com 4 .com u datasheet
s1f79100y series s1f70000 series epson 3C23 technical manual s1f79100y series s1f79100y1g0 s1f79100y1d0 (v dd = 0v, ta = C40 c to +85 c unless otherwise noted) parameter symbol conditions rating unit min. typ. max. input voltage v i C15.0 v output voltage v o v i = C5.0v, i o = 10ma C3.07 C3.00 C2.93 v ta = 25 c operating current i opr v i = C3.0v to C15.0v 4.0 18.0 m a input/output voltage |v i C v o |v i = C3.0v, i o = 10ma 0.23 0.46 v differential input voltage stabilization d v o v i = C4.0v to C15.0v, 0.10 %/v ratio d v i ? v o i o = 10ma, isothermal output voltage drift d v o v i = C5.0v, 30.0 mv i o = 1ma to 30ma (v dd = 0v, ta = C40 c to +85 c unless otherwise noted) parameter symbol conditions rating unit min. typ. max. input voltage v i C15.0 v output voltage v o v i = C3.0v, i o = 10ma C1.87 C1.80 C1.73 v ta = 25 c operating current i opr v i = C1.8v to C15.0v 4.0 18.0 m a input/output voltage |v i C v o |v i = C1.8v, i o = 10ma 0.35 0.70 v differential input voltage stabilization d v o v i = C3.0v to C15.0v, 0.10 %/v ratio d v i ? v o i o = 10ma, isothermal output voltage drift d v o v i = C3.0v, 20.0 mv i o = 1ma to 10ma, isothermal .com .com .com .com 4 .com u datasheet
s1f79100y series 3C24 epson s1f70000 series technical manual s1f79100y1p0 (v dd = 0v, ta = C40 c to +85 c unless otherwise noted) parameter symbol conditions rating unit min. typ. max. input voltage v i C15.0 v output voltage v o v i = C6.0v, i o = 10ma C4.10 C4.00 C3.90 v ta = 25 c operating current i opr v i = C4.0v to C15.0v 4.0 18.0 m a input/output voltage |v i C v o |v i = C4.0v, i o = 10ma 0.19 0.38 v differential input voltage stabilization d v o v i = C5.0v to C15v, 0.10 %/v ratio d v i ? v o i o = 10ma, isothermal output voltage drift d v o v i = C7v, 40.0 mv i o = 1ma to 30ma s1f79100y1b0 (v dd = 0v, ta = C40 c to +85 c unless otherwise noted) parameter symbol conditions rating unit min. typ. max. input voltage v i C15.0 v output voltage v o v i = C7.0v, i o = 10ma C5.10 C5.00 C4.90 v ta = 25 c operating current i opr v i = C5.0v to C15.0v 4.0 18.0 m a input/output voltage |v i C v o |v i = C5.0v, i o = 10ma 0.17 0.34 v differential input voltage stabilization d v o v i = C6.0v to C15.0v, 0.10 %/v ratio d v i ? v o i o = 10ma, isothermal output voltage drift d v o v i = C7.0v, 50.0 mv i o = 1ma to 50ma .com .com .com .com 4 .com u datasheet
s1f79100y series s1f70000 series epson 3C25 technical manual s1f79100y series typical performance characteristics s1f79100y1b0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 ?0 ?0 0 20 40 60 80 100 ta [?c] i opr [ m a] v i = 7v 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 ?5 ?0 ? v i [v] i opr [ m a] ta = 25?c i o = 0ma i opr vs. ta i opr vs. v i 1.2 1.0 0.8 0.6 0.4 0.2 0.0 ?0 ?0 0 20 40 60 80 100 ta [?c] |v o ? i | [v] v i = 4.9v i o = 50ma i o = 10ma 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 0 1020304050 i o [ma] |v i ? o | [v] ta = 25?c v i = ?.9v |v o C v i | vs. ta |v i C v o | vs. i o .com .com .com .com 4 .com u datasheet
s1f79100y series 3C26 epson s1f70000 series technical manual ?.5 ?.0 ?.5 ?0 ?0 0 20 40 60 80 100 ta [?c] v o [v] v i = ?v i o = 10ma ?.0 ?.0 ?.0 ?.0 ?.0 ?.0 0.0 0 5 ?0 ?5 v i [v] v o [v] i o = 10ma i o = 50ma ta = 25?c v o vs. ta v o vs. v i 40 30 20 10 0 ?0 ?0 0 20 40 60 80 100 ta [?c] ? v o [mv] v i = ?v 1ma i o 50ma ?.5 ?.0 ?.5 020 10 30 40 50 i o [ma] v o [v] ta = 25?c v i = ?v d v o vs. ta v o vs. i o .com .com .com .com 4 .com u datasheet
s1f79100y series s1f70000 series epson 3C27 technical manual s1f79100y series s1f79100y1p0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 ?0 ?0 0 20 40 60 80 100 ta [?c] i opr [ m a] v i = ?v 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 ?5 ?0 ? v i [v] i opr [ m a] ta = 25?c i o = 0ma i opr vs. ta i opr vs. v i 1.2 1.0 0.8 0.6 0.4 0.2 0.0 ?0 ?0 0 20 40 60 80 100 ta [?c] |v o ? i | [v] v i = ?.9v i o = 30ma i o = 10ma 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 0 8 16 24 32 40 i o [ma] |v i ? o | [v] ta = 25?c v i = ?.9v |v o C v i | vs. ta |v i C v o | vs. i o .com .com .com .com 4 .com u datasheet
s1f79100y series 3C28 epson s1f70000 series technical manual ?.5 ?.0 ?.5 ?0 ?0 0 20 40 60 80 100 ta [?c] v o [v] v i = ?v i o = 10ma ?.0 ?.0 ?.0 ?.0 ?.0 ?.0 0.0 0 5 ?0 ?5 v i [v] v o [v] i o = 10ma i o = 50ma i o = 30ma ta = 25?c v o vs. ta v o vs. v i 40 30 20 10 0 ?0 ?0 0 20 40 60 80 100 ta [?c] ? v o [mv] v i = ?v 1ma i o 30ma ?.5 ?.0 ?.5 0 8 16 24 32 40 i o [ma] v o [v] ta = 25?c v i = ?v d v o vs. ta v o vs.i o .com .com .com .com 4 .com u datasheet
s1f79100y series s1f70000 series epson 3C29 technical manual s1f79100y series s1f79100y1d0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 ?0 ?0 0 20 40 60 80 100 ta [?c] i opr [ m a] v i = ?v 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 ?5 ?0 ? v i [v] i opr [ m a] ta = 25?c i o = 0ma i opr vs. ta i opr vs. v i 1.2 1.0 0.8 0.6 0.4 0.2 0.0 ?0 ?0 0 20 40 60 80 100 ta [?c] |v o ? i | [v] v i = ?.93v i o = 30ma i o = 10ma 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 0 6 12 18 24 30 i o [ma] |v i ? o | [v] ta = 25?c v i = ?.93v |v o C v i | vs. ta |v i C v o | vs. i o .com .com .com .com 4 .com u datasheet
s1f79100y series 3C30 epson s1f70000 series technical manual ?.5 ?.0 ?.5 ?0 ?0 0 20 40 60 80 100 ta [?c] v o [v] v i = ?v i o = 10ma ?.0 ?.0 ?.0 ?.0 ?.0 ?.0 0.0 0 5 ?0 ?5 v i [v] v o [v] i o = 10ma i o = 30ma ta = 25?c v o vs. ta v o vs. v i 40 30 20 10 0 ?0 ?0 0 20 40 60 80 100 ta [?c] ? v o [mv] v i = ?v 1ma i o 30ma ?.5 ?.0 ?.5 0 6 12 18 24 30 i o [ma] v o [v] ta = 25?c v i = ?v d v o vs. ta v o vs. i o .com .com .com .com 4 .com u datasheet
s1f79100y series s1f70000 series epson 3C31 technical manual s1f79100y series s1f79100y1g0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 ?0 ?0 0 20 40 60 80 100 ta [?c] i opr [ m a] v i = ?v 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 ?5 ?0 ? v i [v] i opr [ m a] ta = 25?c i o = 0ma i opr vs. ta i opr vs. v i 1.2 1.0 0.8 0.6 0.4 0.2 0.0 ?0 ?0 0 20 40 60 80 100 ta [?c] |v o ? i | [v] v i = ?.75v i o = 5ma i o = 1ma 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 0246810 i o [ma] |v i ? o | [v] ta = 25?c v i = ?.75v |v o C v i | vs. ta |v i C v o | vs. i o .com .com .com .com 4 .com u datasheet
s1f79100y series 3C32 epson s1f70000 series technical manual ?.5 ?.0 ?.5 ?0 ?0 0 20 40 60 80 100 ta [?c] v o [v] v i = ?v i o = 1ma ?.0 ?.0 ?.0 ?.0 ?.0 ?.0 0.0 0 5 ?0 ?5 v i [v] v o [v] i o = 10ma i o = 50ma i o = 30ma ta = 25?c v o vs. ta v o vs. v i 40 30 20 10 0 ?0 ?0 0 20 40 60 80 100 ta [?c] ? v o [mv] v i = ?v 1ma i o 10ma ?.5 ?.0 ?.5 0246810 i o [ma] v o [v] ta = 25?c v i = ?v d v o vs. ta v o vs. i o .com .com .com .com 4 .com u datasheet
s1f79100y series s1f70000 series epson 3C33 technical manual s1f79100y series s1f79100y1h0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 ?0 ?0 0 20 40 60 80 100 ta [?c] i opr [ m a] v i = ?v 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 ?5 ?0 ? v i [v] i opr [ m a] ta = 25?c i o = 0ma i opr vs. ta i opr vs. v i 1.2 1.0 0.8 0.6 0.4 0.2 0.0 ?0 ?0 0 20 40 60 80 100 ta [?c] |v o ? i | [v] v i = ?.45v i o = 5ma i o = 1ma 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 0246810 i o [ma] |v i ? o | [v] ta = 25?c v i = ?.45v |v o C v i | vs. ta |v i C v o | vs. i o .com .com .com .com 4 .com u datasheet
s1f79100y series 3C34 epson s1f70000 series technical manual ?.0 ?.5 ?.0 ?0 ?0 0 20 40 60 80 100 ta [?c] v o [v] v i = ?v i o = 1ma ?.0 ?.0 ?.0 ?.0 ?.0 ?.0 0.0 0 5 ?0 ?5 v i [v] v o [v] i o = 1ma i o = 30ma i o = 10ma ta = 25?c v o vs. ta v o vs. v i 40 30 20 10 0 ?0 ?0 0 20 40 60 80 100 ta [?c] ? v o [mv] v i = ?v 1ma i o 10ma ?.0 ?.5 ?.0 0246810 i o [ma] v o [v] ta = 25?c v i = ?v d v o vs. ta v o vs. i o .com .com .com .com 4 .com u datasheet
s1f79100y series s1f70000 series epson 3C35 technical manual s1f79100y series package markings the markings on s1f79100y series device packages use the following abbreviations. marking locations voltage regulator code output voltage code functional descriptions basic operation the s1f79100y series uses a 3-pin series regulator feedback loop. an operational amplifier compares v reg from the voltage divider formed by r 1 and r 2 , with v ref . the amplifier output adjusts the output transistor gate bias to equalize the voltages and com- pensate for fluctuations in v i . v ref gnd v o r 1 v reg r 2 v i + the following equation shows the relationship between v o and v ref . r 1 + r 2 v o = v ref r 1 parameter code description output voltage code b5 v d3 v voltage regulator code p positive n negative note the reflow furnace temperature profile requirements must be satisfied during package reflow. avoid solder- ing on surface mount package (including sot89) as it causes a quick temperature change of package and a device damage. internal circuits reference voltage generator the offset structure used in all three transistors results in a high breakdown voltage that ensures a stable refer- ence voltage output over a wide range of input voltages. v ref v 1 v ss enhancement mode depletion mode depletion mode .com .com .com .com 4 .com u datasheet
s1f79100y series 3C36 epson s1f70000 series technical manual differential amplifier the built-in differential amplifier generates a potential at point x that adjusts the gate bias of the output transis- tor if there is any difference betweeen v ref and v reg . v reg to output transistor v ss v ref v i n1 n2 p1 p2 x output transistor the output side of the p-channel mos transistors in the output transistor circuit is connected to the voltage di- vider resistors in the feedback loop. r 1 v reg v ref + v 1 v o v ss r 2 typical applications current booster at the cost of a small increase in current consumption, the voltage is regulated while maintaining high current output. gnd v o v i v o v ss v i s1f79100y external voltage converter the following circuit raises the output voltage of a s1f79100y series ic. r 1 i opr gnd v o v o v r v i v i v ss r 2 i b s1f79100y the following equation shows the relationship between the old and new voltages. r 1 + r 2 v o = v r r 2 note that the application must supply a bias current, i b , high enough to offset the increase in voltage across r 1 due to i opr . an alternative circuit for raising the output voltage is shown in the following figure. v o v i r1 c o c i gnd v i i ss v o v ss s1f79100y this configuration, however, introduces two design problems. 1. it reduces the output voltage by v f , the forward volt- age drop across the diode. 2. it is sensitive to fluctuations in v f due to differences in diodes, operating temperatures and i ss . .com .com .com .com 4 .com u datasheet
s1f79100y series s1f70000 series epson 3C37 technical manual s1f79100y series r 1 helps reduce the affect of i ss on v f . it is also re- quired when i ss is lower than the diode bias current. for certain input voltages, a zener diode with the re- verse polarity can be used. high input voltages a preliminary regulator circuit is required to bring the input voltage within the s1f79100y series rated range. gnd v o v i v o v i v ss s1f79100y switching output s1f79100y series devices are designed for continuous operation. an external switching circuit allows the regulated output to be switched on and off. gnd on/off control signal v o v i v o v i v ss s1f79100y note) temperatures during reflow soldering must re- main within the limits set out under lsi device precautions in this catalog. do not immerse qfp and sot89 packages during soldering, as the rapid temperature gradient during dipping can cause damage. .com .com .com .com 4 .com u datasheet
4. dc/dc switching regulators .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C1 technical manual s1f76300 series the s1f76300 series of cmos switching regulators comprises nine seriesthe s1f76310, s1f76380 series featuring built-in rc oscillators, the s1f76330 series requiring external crystal oscillators. s1f76310, s1f76380 series built-in cr oscillator type cmos switching regulators description the s1f76310, s1f76380 series of cmos switching regulators provide input voltage step-up and regulation to a specified fixed voltage using an external coil. the devices in these series incorporate precision, low-power reference voltage generators and transistors for driving an internal comparator. they feature low power con- sumption, low operating voltages, voltage detection and standby operation. the devices offer a range of fixed output voltages, from 2.0 to 5.0v. the s1f76310 series features battery backup and power-on clear, the s1f76380 series fea- tures power-on clear and response compensation, the s1f76380 series offer an output voltage temperature characteristic for driving an lcd. they are available in sop3-8pin. features ? 0.9v (min.) operating voltage ?10 m a (typ.) maximum current consumption ? standby operation ?3 m a (typ.) standby current consumption ? 1.05 0.05v high-accuracy voltage detection ? battery backup (available on s1f76310 series) ? on-chip cr oscillator ? power-on clear (available on s1f76310 and s1f76380 series) ? output voltage temperature characteristic for driving an lcd (available on s1f76380 series) ? sop3-8pin applications ? fixed-voltage power supplies for battery-operated equipment such as portable video cassette recorders, video cameras and radios ? power supplies for pagers, memory cards, calculators and similar hand-held equipment ? fixed-voltage power supplies for medical equipment ? fixed-voltage power supplies for communications equipment ? power supplies for microcomputers ? uninterruptable power supplies ? power supplies for lcd panel lineup voltage multiplication voltage response output voltage product (v) frequency detection power-on clear battery backup compensation temperature package input output source characteristic s1f76310m1a0 5.0 sop3-8pin s1f76310m1k0 1.5 3.5 on-chip cr yes no no sop3-8pin s1f76310m1b0 (0.9 min.) 3.0 oscillator yes yes sop3-8pin s1f76310m1l0 2.4 sop3-8pin s1f76380m1l0 1.5 2.4 on-chip cr no yes C 4.0 mv/?c sop3-8pin s1f76380m1h0 (0.9 min.) 2.2 oscillator C 4.5 mv/?c sop3-8pin .com .com .com .com 4 .com u datasheet
s1f76300 series 4C2 epson s1f70000 series technical manual block diagrams s1f76310 series v i2 v i1 reference voltage generator cr oscillator pwcr v sw v o gnd rst ps control switch s1f76380 series rst pwcr v i v sw v o ps v cont gnd reference voltage generator control switch cr oscillator + + .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C3 technical manual s1f76300 series pin assignments s1f76310 series s1f76380 series pin descriptions s1f76310 series pin no. pin name description 1 pwcr power-on clear. see note 1. 2 rst reset signal output. see note 1. 3 gnd ground 4v sw external inductor drive 5v o output votlage 6v i2 backup input voltage 7v i1 step-up input voltage 8 ps power save. see note 2. notes 1. see voltage detection and power-on clear in the functional description. 2. see standby mode and battery backup in the functional description. pwcr gnd v sw rst 1 3 4 2 8 6 5 7 ps v i2 v o v i1 s1f76310 series pwcr gnd v sw rst 1 3 4 2 8 6 5 7 ps v cont v o v i s1f76380 series s1f76380 series pin no. pin name description 1 pwcr power-on clear. see note 1. 2 rst reset signal output. see note 1. 3 gnd ground 4v sw external inductor drive 5v o output votlage 6v cont comparator input 7v i1 step-up input voltage 8 ps power save. see note 2. notes 1. see voltage detection and power-on clear in the functional description. 2. see standby mode and battery backup in the functional description. .com .com .com .com 4 .com u datasheet
s1f76300 series 4C4 epson s1f70000 series technical manual specifications absolute maximum ratings s1f76310 series parameter symbol rating unit input voltage v i1 7v output current i o 100 ma output voltage v o 7v power dissipation p d 200 (sop3) mw 300 (dip) operating temperature range topr C30 to +85 ?c storage temperature range tstg C65 to +150 ?c soldering temperature (for 10 s). see note. tsol 260 ?c notes temperatures during reflow soldering must remain within the limits set out in lsi device precautions. never use solder dip to mount s1f70000 series power supply devices. s1f76380 series parameter symbol rating unit input voltage v i1 7v output current i o 100 ma output voltage v o 7v power dissipation p d 200 (sop3) mw 300 (dip) operating temperature range topr C30 to +85 ?c storage temperature range tstg C65 to +150 ?c soldering temperature (for 10 s). see note. tsol 260 ?c notes temperatures during reflow soldering must remain within the limits set out in lsi device precautions. never use solder dip to mount s1f70000 series power supply devices. v ss = 0v, ta = 25 ?c v ss = 0v, ta = 25 ?c .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C5 technical manual s1f76300 series s1f76310m1b0 v ss = 0v, ta = 25 ?c unless otherwise noted parameter symbol condition rating unit min. typ. max. input voltage v i1 v o > v i2 0.9 2.0 v v i2 0.9 2.0 v output voltage v o v l1 = 1.5v 2.90 3.00 3.10 v detection voltage v det 1.00 1.05 1.10 v detection voltage hysteresis ratio d v det 5% operating current i ddo v i1 = 1.5v, i o = 1.0ma 8 40 m a standby current i dds v i1 = 1.5v 3 10 m a switching transistor on resistance r swon v i1 = 1.5v, v o = 3.0v, 612 w v sw = 0.2v switching transistor leakage current i swq v i1 = 1.5v, v o = 1.5v, 0.5 m a v sw = 7.0v backup switch on resistance r bson v i1 = 1.0v, v i2 = 2.0v, 70 160 w i o = 1.0ma backup switching leakage current i bsq v i1 = 1.0v, v o = 3.0v, 0.1 m a v i2 = 2.0v rst low-level output current i ol v i1 = 0.9v, v ds = 0.2v 0.05 0.15 ma ps pull-up current i ih v i1 = 1.5v 0.5 m a multiplication clock frequency f clk v i1 = 1.5v 30 40 50 khz electrical characteristics s1f76310m1l0 v ss = 0v, ta = 25 ?c unless otherwise noted parameter symbol condition rating unit min. typ. max. input voltage v i1 v o > v i2 0.9 1.8 v v i2 0.9 1.8 v output voltage v o v l1 = 1.5v 2.32 2.40 2.48 v detection voltage v det 1.00 1.05 1.10 v detection voltage hysteresis ratio d v det 5% operating current i ddo v i1 = 1.5v, i o = 1.0ma 7 35 m a standby current i dds v i1 = 1.5v 3 10 m a switching transistor on resistance r swon v i1 = 1.5v, v o = 2.4v, 714 w v sw = 0.2v switching transistor leakage current i swq v i1 = 1.5v, v o = 1.5v, 0.5 m a v sw = 7.0v backup switch on resistance r bson v i1 = 1.0v, v i2 = 1.5v, 100 250 w i o = 1.0ma backup switching leakage current i bsq v i1 = 1.0v, v o = 2.4v, 0.1 m a v i2 = 2.0v rst low-level output current i ol v i1 = 0.9v, v ds = 0.2v 0.05 0.15 ma ps pull-up current i ih v i1 = 1.5v 0.5 m a multiplication clock frequency f clk v i1 = 1.5v 25 35 45 khz .com .com .com .com 4 .com u datasheet
s1f76300 series 4C6 epson s1f70000 series technical manual s1f76310m1k0 v ss = 0v, ta = 25 ?c unless otherwise noted parameter symbol condition rating unit min. typ. max. input voltage v i1 v o > v i2 0.9 2.0 v v i2 0.9 2.0 v output voltage v o v l1 = 1.5v 3.40 3.50 3.60 v detection voltage v det 1.00 1.05 1.10 v detection voltage hysteresis ratio d v det 5% operating current i ddo v i1 = 1.5v, i o = 1.0ma 8 40 m a standby current i dds v i1 = 1.5v 3 10 m a switching transistor on resistance r swon v i1 = 1.5v, v o = 3.5v, 612 w v sw = 0.2v switching transistor leakage current i swq v i1 = 1.5v, v o = 1.5v, 0.5 m a v sw = 7.0v backup switch on resistance r bson v i1 = 1.0v, v i2 = 2.0v, 70 160 w i o = 1.0ma backup switching leakage current i bsq v i1 = 1.0v, v o = 3.5v, 0.1 m a v i2 = 2.0v rst low-level output current i ol v i1 = 0.9v, v ds = 0.2v 0.05 0.15 ma ps pullup current i ih v i1 = 1.5v 0.5 m a multiplication clock frequency f clk v i1 = 1.5v 30 40 50 khz s1f76310m1a0 v ss = 0v, ta = 25 ?c unless otherwise noted parameter symbol condition rating unit min. typ. max. input voltage v i1 v o > v i2 0.9 2.0 v v i2 0.9 2.0 v output voltage v o v l1 = 1.5v 4.80 5.00 5.20 v detection voltage v det 1.00 1.05 1.10 v detection voltage hysteresis ratio d v det 5% operating current i ddo v i1 = 1.5v, i o = 1.0ma 10 50 m a standby current i dds v i1 = 1.5v 3 10 m a switching transistor on resistance r swon v i1 = 1.5v, v o = 5.0v, 510 w v sw = 0.2v switching transistor leakage current i swq v i1 = 1.5v, v o = 1.5v, 0.5 m a v sw = 7.0v backup switch on resistance r bson v i1 = 1.0v, v i2 = 3.0v, 50 100 w i o = 1.0ma backup switching leakage current i bsq v i1 = 1.0v, v o = 5.0v, 0.1 m a v i2 = 3.0v rst low-level output current i ol v i1 = 0.9v, v ds = 0.2v 0.05 0.15 ma ps pullup current i ih v i1 = 1.5v 0.5 m a multiplication clock frequency f clk v i1 = 1.5v 35 45 55 khz .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C7 technical manual s1f76300 series s1f76380m1h0 v ss = 0v, ta = 25 ?c unless otherwise noted parameter symbol condition rating unit min. typ. max. input voltage v i1 0.9 2.0 v output voltage v o v l1 = 1.5v 2.10 2.20 2.30 v output voltage temperature gradient kt C5.5 C4.5 C3.5 mv/?c detection voltage v det 1.00 1.05 1.10 v detection voltage hysteresis ratio d v det 5% operating current i ddo v i1 = 1.5v, i o = 1.0ma 7 35 m a standby current i dds v i1 = 1.5v 3 10 m a switching transistor on resistance r swon v i1 = 1.5v, v o = 2.2v, 714 w v sw = 0.2v switching transistor leakage current i swq v i1 = 1.5v, v o = 1.5v, 0.5 m a v sw = 7.0v rst low-level output current i ol v i1 = 0.9v, v ol = 0.2v 0.05 0.15 ma ps pullup current i ih v i1 = 1.5v 0.5 m a multiplication clock frequency f clk v i1 = 1.5v 25 35 45 khz s1f76380m1l0 v ss = 0v, ta = 25 ?c unless otherwise noted parameter symbol condition rating unit min. typ. max. input voltage v i1 0.9 2.0 v output voltage v o v l1 = 1.5v 2.30 2.40 2.50 v output voltage temperature gradient kt C5.5 C4.0 C3.5 mv/?c detection voltage v det 1.00 1.05 1.10 v detection voltage hysteresis ratio d v det 5% operating current i ddo v i1 = 1.5v, i o = 1.0ma 7 35 m a standby current i dds v i1 = 1.5v 3 10 m a switching transistor on resistance r swon v i1 = 1.5v, v o = 2.4v, 714 w v sw = 0.2v switching transistor leakage current i swq v i1 = 1.5v, v o = 1.5v, 0.5 m a v sw = 7.0v rst low-level output current i ol v i1 = 0.9v, v ol = 0.2v 0.05 0.15 ma ps pullup current i ih v i1 = 1.5v 0.5 m a multiplication clock frequency f clk v i1 = 1.5v 25 35 45 khz .com .com .com .com 4 .com u datasheet
s1f76300 series 4C8 epson s1f70000 series technical manual typical performance characteristics detection voltage vs. ambient temperature clock frequency vs. input voltage clock frequency vs. ambient temperature 2.0 1.5 1.0 0.5 0.0 0123456 ta = 25 ?c fixed output voltage (v) fixed output voltage temperature characteristic (mv/ ?c ) fixed-output voltage temperature characteristic v i1 = 1.5 v 5 standby current ( a) ambient temperature (?c) 4 3 2 1 0 025 75 50 85 ?0 1.15 1.10 1.05 1.00 0.95 ?0 0 25 85 v rel v det 50 75 ambient temperature (?c) detection voltage (v) 0.5 60 50 40 30 20 10 1.5 2.0 2.5 1.0 input voltage (v) clock frequency (khz) ta = 25 ?c v i1 = 1.5 v 60 50 40 30 20 10 ?0 0 ambient temperature (?c) clock frequency (khz) 25 50 85 standby current vs. ambient temperature s1f76380m1h0 and s1f76380m1l0 .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C9 technical manual s1f76300 series output voltage vs. ambient temperature (s1f76380m1h0) output voltage vs. ambient temperature (s1f76380m1l0) s1f76310m1b0, s1f76310m1k0 clock frequency vs. input voltage ?0 2.5 2.0 1.5 025 ambient temperature (?c) output voltage (v) 50 85 75 0.5 60 50 40 30 20 10 1.0 1.5 input voltage (v) clock frequency (khz) 2.0 2.5 ta = 25 ?c ?0 60 50 40 30 20 10 v i1 = 1.5 v 025 ambient temperature (?c) clock frequency (khz) 50 85 clock frequency vs. ambient temperature ?0 2.5 2.0 025 ambient temperature (?c) output voltage (v) 50 85 75 s1f76310m1a0 clock frequency vs. ambient temperature 60 50 40 30 clock frequency (khz) 10 2.5 2.0 1.5 input voltage (v) 1.0 0.5 20 ta = 25 ?c 60 50 40 30 20 10 clock frequency (khz) ?0 0 v i1 = 1.5 v 25 ambient temperature (?c) 50 85 clock frequency vs. input voltage .com .com .com .com 4 .com u datasheet
s1f76300 series 4C10 epson s1f70000 series technical manual load characteristics s1f76310m1a0 notes inductor: tdk nlf453232-221k (220 m h) diode: shindengen dins4 schottky barrier diode capacitor: nec msub20j106m (10 m f) notes 1. v i1 = 1.5v 2. inductor: tdk nlf453232 series diode: shindengen dins4 schottky barrier diode capacitor: nec msub20j106m (10 m f) 5.5 5.0 4.5 4.0 3.5 3.0 2.5 output voltage (v) 05 load current (ma) 10 v i1 = 1.0 v v i1 = 1.25 v v i1 = 1.5 v ta = 25 ?c f clk = 32 khz 100 10 100 50 0 5 maximum load current (ma) load efficiency (%) 0 200 300 inductence ( h) 500 1000 ta = 25 ?c f clk = 32 khz i l max peff s1f76310m1b0 notes 1. v i1 = 1.5v 2. inductor: tdk nlf453232 series diode: shindengen dins4 schottky barrier diode capacitor: nec msub20j106m (10 m f) notes inductor: tdk nlf453232-221k (220 m h) diode: shindengen dins4 schottky barrier diode capacitor: nec msub20j106m (10 m f) 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0510 load current (ma) output voltage (v) 15 20 25 f clk = 32.8 khz v i1 = 1.0 v v i1 = 1.25 v v i1 = 1.5 v 12 10 8 6 4 2 0 100 50 0 100 200 300 inductance ( h) maximum load current (ma) load efficiency (%) 500 1000 ta = 25 ?c f clk = 32 khz peff i l max .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C11 technical manual s1f76300 series s1f76380m1l0 notes 1. v i1 = 1.5v 2. inductor: tdk nlf453232 series diode: shindengen dins4 schottky barrier diode capacitor: nec msub20j106m (10 m f) s1f76380m1h0 notes inductor: tdk nlf453232-221k (220 m h) diode: shindengen dins4 schottky barrier diode capacitor: nec msub20j106m (10 m f) notes 1. v i1 = 1.5v 2. inductor: tdk nlf453232 series diode: shindengen dins4 schottky barrier diode capacitor: nec msub20j106m (10 m f) 4.0 3.5 3.0 2.5 2.0 1.5 1.0 010 load current (ma) output voltage (v) 5152025 v i = 1.0 v v = 1.5 v v = 1.25 v f clk = 35 khz 4.0 3.5 3.0 2.5 2.0 1.5 1.0 010 load current (ma) output voltage (v) 5152025 v i1 = 1.0 v v i1 = 1.5 v v i1 = 1.25 v f clk = 35 khz 15 10 5 00 50 100 100 200 300 inductance ( h) maximum load current (ma) load efficiency (%) 500 1000 ta = 25 ?c f clk = 40 khz i l max peff notes inductor: tdk nlf453232-221k (220 m h) diode: shindengen dins4 schottky barrier diode capacitor: nec msub20j106m (10 m f) 15 10 5 0 50 100 100 200 300 inductance ( h) maximum load current (ma) load efficiency (%) 500 1000 ta = 25 ?c f clk = 35khz i l max peff .com .com .com .com 4 .com u datasheet
s1f76300 series 4C12 epson s1f70000 series technical manual reset delays s1f76310m1a0 s1f76310m1k0 200 150 100 50 0 0.1 0.5 1.0 0.6 0.8 0.2 0.3 c ( f) t pd (msec) 0.7 0.4 r = 200 k w r = 100 k w 200 150 100 50 0 0.1 0.5 1.0 0.6 0.8 0.2 0.3 c ( f) t pd (msec) 0.7 0.4 r = 200 k w r = 100 k w s1f76310m1b0 s1f76310m1l0 and s1f76380m1l0 s1f76380m1h0 200 150 100 50 0 c ( f) 0.1 0.2 1.0 0.8 0.7 0.6 0.5 0.3 0.4 t pd (msec) r = 200 k w r = 100 k w 200 150 100 50 0 c ( f) 0.1 0.2 1.0 0.8 0.7 0.6 0.5 0.3 0.4 t pd (msec) r = 200 k w r = 100 k w 200 150 100 50 0 c ( f) 0.1 0.2 1.0 0.8 0.7 0.6 0.5 0.3 0.4 t pd (msec) r = 200 k w r = 100 k w .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C13 technical manual s1f76300 series timing diagram measurement circuit package markings s1f76310, s1f76380 series device packages use the following markings. functional descriptions basic voltage booster operation tr1 switches on and off at half the frequency of the clock pulses from the built-in rc oscillator. when the transistor is on, the circuit stores energy in l. when it is off, this energy flows through d to change c. internal circuits cr oscillator the s1f76310, s1f76380 series use a built-in cr os- cillator to drive the voltage booster circuit. the circuit is supplied by v i1 . all circuit components are on-chip and thus the drive frequency is set internally. to ensure 50% duty, this frequency is twice that used by the volt- age booster circuit. when ps is low, the oscillator is disabled and the chip is in standby mode. v i1 t pd pwcr rst 7631 series number second subcode character code number first subcode character v o r 100 k w pwcr rst c v o v i1 gnd v o gnd ld tr1 c ps c r .com .com .com .com 4 .com u datasheet
s1f76300 series 4C14 epson s1f70000 series technical manual reference voltage generator and output voltage regulator the reference voltage generator regulates v i1 to gener- ate a votlage for the voltage regulator and voltage detec- tion circuits. the voltage regulator regulates the boosted output votlage. this is determined by the level at point a be- tween the two resistors connecting v o and gnd. these series use an on-chip resistor to set the output at a speci- fied voltage. note in step-up voltage operation, the ripple voltage created by the switching operation is large relative to the output voltage described above. this ripple voltage is affected by external components and load conditions. the user is advised to check this voltage carefully. voltage detection the s1f76310, s1f76380 series are equipped with a built-in voltage detection function. the detection volt- age, v det , is fixed internally at 1.05 0.05v. power-on clear function the s1f76310 series and s1f76380 series are equipped with a built-in power-on clear function. as shown in the following figure, r1 and c1 are connected to pwcr, and r2 is connected to rst to operate the func- tion. if v i1 drops below v det , tr1 and tr2 conduct and pwcr and rst are grounded. if v i1 recovers and rises higher than v rel , tr1 turns off. the detection volt- age hysteresis is 5% (typ.) and v rel is v det 1.05 (typ.). v o returns to its normal value when the voltage of pwcr increases and tr2 turns off, so that rst re- turns to v o after a delay specified by the time coeffi- cient of r1 and c1. thus, after normal output has been obtained, a reset pulse of adjustable width can be ob- tained which can reset a system connected to rst. the output from rst is an n-channel, open-drain. when v i1 exceeds v det , the drain is opened and, when v i1 drops below v det again, the output transistor con- ducts and the output is grounded. the characteristic re- sponse is shown in the following figure. disabling power-on clear always connect pwcr to either v o or gnd. if volt- age detection only is required, remove the resistor be- tween pwcr and v o and monitor the level at rst. if neither function is required, connect pwcr to gnd. leaving pwcr unconnected results in an undefined in- verter gate voltage in the v o circuit, causing transient currents to flow between v o and gnd. reference voltage generator cr oscillator + a v i1 v sw v o gnd output voltage regulator voltage detector v i1 + tr1 tr2 v o v o v o rst pwcr r2 r1 c1 s1f76310m v rel v i1 pwcr rst v det v gnd v gnd v o v o .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C15 technical manual s1f76300 series output voltage response compensation the s1f76380 series are provided with a response com- pensation input. a response compensation capacitor is connected between v cont and v o , allowing the ripple voltage generated by the boosted output voltage to be suppressed to a minimum. standby mode and battery backup the s1f76310 series are equipped with a standby mode, initiated by connecting ps to gnd. typical applications example circuits the output current, i o , and power conversion effi- ciency, peff of a particular device in a series depends on in standby mode, the booster, including the crystal os- cillator, is disabled (the switching transistor used to drive the inductor is turned off) and the built-in backup switch is turned on, so that the input voltage at v i2 is output at v o . this enables the battery backup function. ps is pulled-up internally, so when standby mode is not required, the pin should be left open. powering up ensure that v o is at least the minimum operating volt- age (0.9v) before switching on the booster circuit. one way to do this is to attach a battery so that v o never drops below the minimum required for backup mode. if no such external power supply is available, connect v i2 to v i1 and hold ps low when applying power for the first time. s1f76310 series factors such as the switching frequency, type of coil, and the size and type of other external components. + pwcr v o circuit v i1 circuit v i1 rst v i2 c battery ps s1f76310m c1 v o v sw ld rst v i1 v i2 gnd s1f76310m/c ps pwcr r1 s1f76380 series c1 v o v sw ld rst v i1 gnd s1f76380m/c ps v cont pwcr .com .com .com .com 4 .com u datasheet
s1f76300 series 4C16 epson s1f70000 series technical manual inductor use an inductor with low direct-current resistance and low losses. leadless pre-wound, leadless inductors using surface-mount technology are the most suitable for portable equipment and other space-critical applications. drum coil avoid using drum coils because their magnetic field can induce noise. toroidal coil use a toroidal coil to virtually eliminate magnetic field leakage, reduce losses and improve performance. diode use a schottky barrier diode with a high switching speed and low forward voltage drop, v f . capacitor to minimize ripple voltages, use a capacitor with a small equivalent direct-current resistance for smooth- ing. notes n 100 m h l 1mh, c 10 m f, d = schottky diode n s1f76310m1a0 ? peff = 70% when l = 220 m h (leadless inductor), v i1 = 1.5v, f clk = 32khz, i o = 4ma ? peff = 75% when l = 220 m h (drum coil), v i1 = 1.5v, f clk = 32khz, i o = 6ma ? peff = 80% when l = 300 m h (toroidal coil), v i1 = 1.5v, f clk = 32khz, i o = 7ma n s1f76310m1b0 ? peff = 70% when l = 220 m h (leadless inductor), v i1 = 1.5v, f clk = 32khz, i o = 8ma ? peff = 75% when l = 220 m h (drum coil), v i1 =1.5v, f clk = 32khz, i o = 9ma ? peff = 80% when l = 300 m h (toroidal coil), v i1 = 1.5v, f clk = 32khz, i o = 10ma external components the performance characteristics of switching regulators depend greatly on the choice of external components. observing the following guidelines will ensure high performance and maximum efficiency. .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C17 technical manual s1f76300 series sample external components leadless inductors tdk nkf453232 series magnetically shielded leadless inductors inductance lq frequency device dc resistance rated current device ( m h) qmin (mhz) frequency ( w -max.) (ma-max.) (mhz-min.) nlf453232-390k 39.0 10% 50 2.52 13 1.89 44 nlf453232-470k 47.0 10% 50 2.52 12 2.10 41 nlf453232-560k 56.0 10% 50 2.52 11 2.34 39 nlf453232-680k 68.0 10% 50 2.52 10 2.60 36 nlf453232-820k 82.0 10% 50 2.52 10 2.86 34 nlf453232-101k 100.0 10% 50 0.796 9 3.25 32 nlf453232-121k 120.0 10% 50 0.796 8 3.64 30 nlf453232-151k 150.0 10% 50 0.796 7 4.16 28 nlf453232-181k 180.0 10% 40 0.796 6 5.72 26 nlf453232-221k 220.0 10% 40 0.796 5.5 6.30 24 nlf453232-271k 270.0 10% 40 0.796 5 6.90 23 nlf453232-331k 330.0 10% 40 0.796 4.5 7.54 23 nlf453232-391k 390.0 10% 40 0.796 4 8.20 21 nlf453232-471k 470.0 10% 40 0.796 3.8 9.20 19 nlf453232-561k 560.0 10% 40 0.796 3.6 10.50 18 nlf453232-681k 680.0 10% 40 0.796 3.4 12.00 17 nlf453232-821k 820.0 10% 40 0.796 3 13.50 16 nlf453232-102k 1000.0 10% 40 0.252 2.5 16.00 15 characteristic response measurement circuit 1000 10 inductance ( h) 100 dc current (ma) 1000 500 50 500 100 50 10 5 1 33 h 10 h 4.7 h 1.0 h 150 h 390 h 820 h dc supply 5h 20,000 ? lx a yhp4255a universal bridge .com .com .com .com 4 .com u datasheet
s1f76300 series 4C18 epson s1f70000 series technical manual drum coil inductors taiyo yuuden fl series micro-inductors toroidal coil inductors tohoku metal industries hp series toroidal coil inductors device inductance direct current (ma) fl3h 0.22 m h to 10 m h 280 to 670 fl4h 0.47 m h to 12 m h 300 to 680 fl5h 10 m h to 1mh 50 to 320 fl7h 680 m h to 8.2mh 50 to 170 fl9h 330 m h to 33mh 50 to 500 fl11h 10mh to 150mh 35 to 110 device rated current i dc inductance ( m h) at 20khz, 5v diameter height wire gauge (a) i dc = 0 i dc = rating (mm-max.) (mm?) hp011 1 200 160 0.5 hp021 2 65 55 f 20 12 0.7 hp031 3 30 23 0.8 hp012 1 600 450 0.5 hp022 2 180 135 f 22 13 0.7 hp032 3 120 80 0.8 hp052 5 45 30 1.0 hp013 1 1000 800 0.5 hp023 2 500 330 f 26 14 0.7 hp033 3 130 100 0.8 hp055 5 90 55 1.0 hp034s 3 400 250 0.8 hp054s 5 350 160 f 36 18 1.0 hp104s 10 50 30 1.6 hp024 2 1500 950 0.7 hp034 3 300 230 f 36 21 0.8 hp054 3 210 140 1.0 hp104 10 45 30 1.6 hp035 3 700 500 0.5 hp055 5 600 330 f 43 23 1.0 hp105 10 180 95 1.6 hp205 20 20 14 1.8 2 p .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C19 technical manual s1f76300 series diodes shindengen dins4 schottky barrier diodes parameter symbol condition rating unit min. typ. max. forward voltage v f i f = 1.1a, 0.55 v pulse measurement reverse current i r v r = v rm , 1 ma pulse measurement junction-to-lead thermal resistance q jl 23 ?c/w junction-to-ambient thermal resistance q ja 157 ?c/w characteristics smoothing capacitors nec msv series capacitors package rated static capacitance tan d leakage device type voltage (v) ( m f) +25, +85 +125 C55 current ( m a) ?c ?c ?c msvaoj475m a 6.3 4.7 0.08 0.1 0.12 0.5 msvb2oj106m b2 6.3 10 0.08 0.1 0.12 0.6 msvb2oj156m b2 6.3 15 0.08 0.1 0.12 0.9 msvboj156m b 6.3 15 0.08 0.1 0.12 0.9 msvcoj336m c 6.3 33 0.08 0.1 0.12 2.0 msvd2oj686m d2 6.3 68 0.08 0.1 0.12 4.2 msvdoj686m d 6.3 68 0.08 0.1 0.12 4.2 note the figures on the previous pages show data from the documents of various manufactures. for further details, please contact the relevant manufacture. 1.4 0.8 0.6 forward voltage (v) forward current (a) 0.4 0.2 0 5 2 1 0.5 0.2 0.1 0.05 1.0 1.2 tp = 25 ?c (max.) tp =125 ?c (max.) tp = 125 ?c (typ.) tp = 25 ?c (typ.) .com .com .com .com 4 .com u datasheet
s1f76300 series 4C20 epson s1f70000 series technical manual other applications voltage booster combining an s1f76310 switching regulator with an s1f76610c/m dc/dc converter and voltage regulator creates the voltage booster circuit shown in the follow- ing figure. potential levels are shown in the following figure. although the circuit appears to have two on/off con- trol points, ps on the s1f76310m1a0 and p off on the s1f76610c/m, ps only shuts down the s1f76310m1a0. the input voltage still reaches the s1f76610c/m through l and d. c1 c1 10 f c3 10 f c2 10 f + + v o v sw l d v i1 v i = ? v v o = ?15v r osc 1 m w p off v i2 gnd ps pwcr s1f76310m s1f76610c/m 1 2 3 4 5 6 7 14 13 12 11 10 9 8 s1f76610c/m v dd (5 v) v dd (0 v) v o (?0 v) v o (5 v) v i (1.5 v) gnd (0 v) s1f76310m1a0 boost on v i = 1.5 v gnd = 0 v ps boost off boost on v i = 5 v gnd = 0 v p off boost off .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C21 technical manual s1f76300 series output voltage adjustment to ensure stable output, any circuit that adjusts the out- put voltage must contain c1, r a and r b . to stop switching current from affecting v o , the circuit must also satisfy the condition i o < i r . the following figure summarizes the relevant circuits inside an s1f76300 series chip. v o is connected to the level shift and buffer circuit, which provide the gate bias for the switching transistor driving the inductor. the current drain, i o1 , varies with the load and is typically 10 m a. the current, i o2 , through the internal resistors r1 and r2, is typically 1 m a. v i v o i o c l (i o < i r ) i r r b r a c gnd v sw voltage adjustment circuit step-up voltage output s1f76310m v sw v i comparatpr controller level shifter v o i o1 i o2 v ref r1 r2 i o buffer .com .com .com .com 4 .com u datasheet
s1f76300 series 4C22 epson s1f70000 series technical manual voltage (v) multiplication output crystal product frequency voltage power-on battery response voltage oscillator package input output source detection clear backup compensation temperature output characteristic s1f76330m1b0 1.5 3.00 crystal no no no no no yes sop3-8pin (0.9 min.) oscillator s1f76330 series built-in crystal oscillator type cmos switching regulators description the s1f76330 series of cmos switching regulators provide input voltage step-up and regulation to a speci- fied voltage using an external coil. the devices in these series incorporate precision, low-power reference volt- age generators and transistors for driving an internal comparator. they feature low power consumption, low operating voltages and standby operation. the devices offer a range of fixed output voltages, from 2.35 to 5.00v. they are available in 8-pin sop3s. features ? 0.9v (min.) operating voltage ?8 m a (typ.) maximum current consumption ? standby operation ?3 m a (typ.) standby current consumption ? built-in oscillator circuit for use with external crystal oscillator ? sop3-8pin applications ? fixed-voltage power supplies for battery-operated equipment such as portable video cassette recorders, video cameras and radios ? power supplies for pages, memory cards, calculators and similar hand-held equipment ? fixed-voltage power supplies for medical equipment ? fixed-voltage power for communications equipment ? power supplies for microcomputers ? uninterruptable power supplies lineup .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C23 technical manual s1f76300 series pin descriptions s1f76330 series number name description 1c o crystal drain 2c i crystal gate 3 gnd ground 4v sw external inductor drive 5v o output voltage 6cl o oscillator output 7v i step-up input voltage 8 ps power save. see note. note see standby mode in the functional description. block diagrams s1f76330 series pin assignments s1f76330 series + gnd v o v sw clo ps c i c o v i1 reference voltage generator control switch oscillator 1 2 3 4 c o c i gnd v sw s1f76330 series ps v i1 cl o v o 8 7 6 5 .com .com .com .com 4 .com u datasheet
s1f76300 series 4C24 epson s1f70000 series technical manual specifications absolute maximum ratings s1f76330 series parameter symbol rating unit input voltage v i1 7v output current i o 100 ma output voltage v o 7v power dissipation p d 200 (sop) mw 300 (dip) operating temperature range topr C30 to +85 ?c storage temperature range tstg C65 to +150 ?c solding temperature (for 10 s). see note. tsol 260 ?c note temperatures during reflow soldering must remain within the limits set out in lsi device precautions. never use solder dip to mount s1f70000 series power supply devices. electrical characteristics s1f76330m1b0 v ss = 0v, ta = 25 ?c unless otherwise noted parameter symbol conditions rating unit min. typ. max. input voltage v i1 v o > v i2 0.9 2.0 v output voltage v o v i1 = 1.5v 2.90 3.00 3.10 v v i1 = 1.5v, operating current i ddo f clk = 32khz, 5 30 m a i o = 1.0ma standby current i dds v i1 = 1.5v 3 10 m a switching transistor on resistance r swon v i1 = 1.5v, v o = 3.0v, 612 w v sw = 0.2v switching transistor leakage current i swq v i1 = 1.5v, v o = 1.5v, 0.5 m a v sw = 7.0v cl o low-level output current i ol v i1 = 1.5v, v o = 3.0v, 0.5 1.0 m a v ol = 0.2v cl o high-level output current i oh v i1 = 1.5v, v o = 3.0v, 0.55 1.1 m a v oh = 0.2v ps pull-up current i ih v ih = 1.5v 0.5 m a oscillator start-up voltage v sta 0.9 v oscillator shut-down voltage v stp 0.9 v c g = 10pf, c d = 10pf, r d = 300k w , f osc = 32khz .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C25 technical manual s1f76300 series typical performance characteristics standby current vs. ambient temperature normalized frequency deviation vs. input voltage 1 normalized frequency deviation vs. gate capacitance 1 normalized frequency deviation vs. input voltage 2 normalized frequency deviation vs. gate capacitance 2 fixed output voltage (v) ta = 25 ?c fixed output voltage temperature characteristic (mv/?c) 0 2.0 1.5 1.0 0.5 0.0 123456 ambient temperature (?c) v i1 = 1.5 v standby current ( a) 5 4 3 2 1 0 ?0 0 25 50 85 75 input voltage (v) normalized frequency deviation (ppm) 10 5 0 ? ?0 0.5 1.0 1.5 2.0 2.5 normalized frequency deviation = d f/f c g = c d = 20 pf c g = c d = 10 pf r d = 200 k w v i = 1.5 v f o = 32 khz gate capacitance (pf) normalized frequency deviation (ppm) 50 0 ?0 0102030 r d = 200 k w v i = 1.5 v f o = 32 khz c d = 20 pf c d = 10 pf normalized frequency deviation = f? o f o normalized frequency deviation = d f/f input voltage (v) c g = c d = 20 pf c g = c d = 10 pf normalized frequency deviation (ppm) 1.0 0 ?.0 0.5 1.0 1.5 2.0 2.5 r d = 0 w v i = 1.5 v f o = 96 khz gate capacitance (pf) c d = 20 pf c d = 10 pf normalized frequency deviation (ppm) 50 0 ?0 0102030 r d = 0 w v i = 1.5 v f o = 96 khz normalized frequency deviation = f? o f o fixed output voltage temperature characteristic .com .com .com .com 4 .com u datasheet
s1f76300 series 4C26 epson s1f70000 series technical manual load characteristics s1f76330m1b0 notes inductor: tdk nlf453232-221k (220 m h) diode: shindengen dins4 schottky barrier diode capacitor: nec msvb20j106m (10 m f) notes 1. v i1 = 1.5v 2. inductor: tdk nlf453232 series diode: shindengen dins4 schottky barrier diode capacitor: nec msvb20j106m (10 m f) 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0 5 10 15 20 25 load current (ma) output voltage (v) f clk = 32.8 khz v i1 = 1.0 v v i1 = 1.25 v v i1 = 1.5 v 100 200 300 500 1000 inductance ( h) 10 5 0 100 50 0 maximum load current (ma) load efficiency (%) ta = 25 ?c f clk = 32 khz peff i l max package markings s1f76330 device packages use the following marking. 7631 series number second subcode character code number first subcode character .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C27 technical manual s1f76300 series functional descriptions basic voltage booster operation tr1 switches on and off at the frequency of the clock pulses from the crystal oscillator. when the transistor is on, the circuit stores energy in l. when it is off, this energy flows through d to charge c. the output voltage regulator regulates the boosted out- put voltage. this voltage is determined by the level at point a between the two resistors connecting v o and gnd. these series use an on-chip resistor to set the output at a specified voltage. internal circuits crystal oscillator the s1f76330 series incorporate a crystal oscillator cir- cuit. an external crystal and drain resistor are used to generate the booster circuit clock. the crystal oscillator is connected to c i and c o as shown in the following figure. v i1 gnd v o gnd ld tr1 c in the s1f76330 series, the crystal oscillator output is sent to cl o as the v o system signal. the crystal oscil- lator circuit is activated by v i but, because the output level is shifted and the output is connected to cl o , the oscillator output cannot be obtained without a voltage at v o . since the crystal oscillator is activated when an input voltage is applied, oscillation continues even in standby mode. reference voltage generator and output voltage regulator the reference voltage generator regulates v i1 to gener- ate a voltage for the voltage regulator circuit. s1f76330 c i c o r d crystal c d c g note in step-up voltage operation, the ripple voltage created by the switching operation is large relative to the output voltage described above. this ripple voltage is affected by external components and load conditions. the user is advised to check this voltage carefully. standby mode connecting ps to gnd places the chip in standby mode. in this mode, the crystal oscillator is disabled, switching off the inductor drive transistor and the volt- age booster circuit. typically, ps is connected to rst. if standby mode is not required, leave ps open as it has a pull-up resistor. output voltage response compensation the s1f76340 series incorporates a response compen- sation input. a response compensation capacitor is connected between v cont and v o , allowing the ripple voltage generated by the boosted output voltage to be suppressed to a minimum. reference voltage generator crystal oscillator crystal + a v i1 c g c d v sw v o gnd output voltage regulator .com .com .com .com 4 .com u datasheet
s1f76300 series 4C28 epson s1f70000 series technical manual powering up ensure that v o is at least the minimum operating volt- age (0.9v) before switching on the booster circuit. one way to do this is to connect a capacitor between ps and gnd so that the chip connects v o to v i when the power is applied for the first time. inductor use an inductor with low direct-current resistance and low losses. leadless pre-wound, leadless inductors using surface-mount technology are the most suitable for portable equipment and other space-critical applications. drum coll avoid drum coils because their magnetic field can in- duce noise. toroidal coil use a toroidal coil to virtually eliminate magnetic field leakage, reduce losses and improve performance. tors such as the switching frequency, type of coil, and the size and type of other external components. s1f76330 series typical applications example circuits the output current, i o , and power conversion efficiency peff, of a particular device in the series depends on fac- notes n 100 m h l 1mh, c 10 m f, d: schottky diode n s1f76330m1b0 ? peff = 70% when l = 220 m h (leadless inductor), v i1 = 1.5v, f clk = 32khz, i o = 8ma ? peff = 75% when l = 220 m h (drum coil), v i1 = 1.5v, f clk = 32khz, i o = 9ma ? peff = 80% when l = 300 m h (toroidal coil), v i1 = 1.5v, f clk = 32khz, i o = 10ma external components the performance characteristics of switching regulators depend greatly on the choice of external components. observing the following guidelines will ensure high performance and maximum efficiency. v i2 c battery ps s1f76330m c1 v o c g c d c rystal v sw ld v i gnd s1f76330m ps cl o .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C29 technical manual s1f76300 series diode use a schottky barrier diode with a high switching speed and low forward voltage drop, v f . capacitor to minimize ripple voltages, use capacitors with a small equivalent direct-current resistance for smooth- ing. sample external components leadless inductors tdk nlf453232 series magnetically-shielded leadless inductors inductance lq frequency device dc resistance rated current device ( m h) qmin (mhz) freuquency ( w -max.) (ma-max.) (mhz-min.) nlf453232-390k 39.0 10% 50 2.52 13 1.89 44 nlf453232-470k 47.0 10% 50 2.52 12 2.10 41 nlf453232-560k 56.0 10% 50 2.52 11 2.34 39 nlf453232-680k 68.0 10% 50 2.52 10 2.60 36 nlf453232-820k 82.0 10% 50 2.52 10 2.86 34 nlf453232-101k 100.0 10% 50 0.796 9 3.25 32 nlf453232-121k 120.0 10% 50 0.796 8 3.64 30 nlf453232-151k 150.0 10% 50 0.796 7 4.16 28 nlf453232-181k 180.0 10% 40 0.796 6 5.72 26 nlf453232-221k 220.0 10% 40 0.796 5.5 6.30 24 nlf453232-271k 270.0 10% 40 0.796 5 6.90 23 nlf453232-331k 330.0 10% 40 0.796 4.5 7.54 23 nlf453232-391k 390.0 10% 40 0.796 4 8.20 21 nlf453232-471k 470.0 10% 40 0.796 3.8 9.20 19 nlf453232-561k 560.0 10% 40 0.796 3.6 10.50 18 nlf453232-681k 680.0 10% 40 0.796 3.4 12.00 17 nlf453232-821k 820.0 10% 40 0.796 3 13.50 16 nlf453232-102k 1000.0 10% 40 0.252 2.5 16.00 15 characteristic response measurement circuit 1000 10 inductance ( h) 100 dc current (ma) 1000 500 50 500 100 50 10 5 1 33 h 10 h 4.7 h 1.0 h 150 h 390 h 820 h dc supply 5h 20,000 f lx a yhp4255a universal bridge .com .com .com .com 4 .com u datasheet
s1f76300 series 4C30 epson s1f70000 series technical manual device inductance ( m h) direct current (ma) fl3h 0.22 to 10 280 to 670 fl4h 0.47 to 12 300 to 680 fl5h 10 to 1000 50 to 320 fl7h 680 to 8200 50 to 170 fl9h 330 to 33000 50 to 500 fl11h 10000 to 150000 35 to 110 device rated current inductance ( m h) at 20khz, 5v diameter height wire gauge i dc (a) i dc = 0 i dc = rating (mm-max.) (mm?) hp011 1 200 160 0.5 hp021 2 65 55 20 12 0.7 hp031 3 30 23 0.8 hp012 1 600 450 0.5 hp022 2 180 135 22 13 0.7 hp032 3 120 80 0.8 hp052 5 45 30 1.0 hp013 1 1000 800 0.5 hp023 2 500 330 26 14 0.7 hp033 3 130 100 0.8 hp055 5 90 55 1.0 hp034s 3 400 250 0.8 hp054s 5 350 160 36 14 1.0 hp104s 10 50 30 1.6 hp024 2 1500 950 0.7 hp034 3 300 230 36 21 0.8 hp054 5 210 140 1.0 hp104 10 45 30 1.6 hp035 3 700 500 0.8 hp055 5 600 330 43 23 1.0 hp105 10 180 95 1.6 hp205 20 20 14 1.8 2 p drum coil inductors taiyo yuuden fl series micro inductors toroidal coil inductors tohoku metal industries hp series toroidal coil inductors .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C31 technical manual s1f76300 series parameter symbol conditions rating unit min. typ. max. forward voltage v f i f = 1.1a, 0.55 v pulse measurement reverse current i r v r = v rm , 1 ma pulse measurement junction-to-lead thermal resistance q jl 23 ?c/w junction-to-ambient thermal resistance q ja 157 ?c/w package static capacitance tan d leakage device type voltage (v) ( m f) +25, +85 +125 C55 current ( m a) ?c ?c ?c msva0j475m a 6.3 4.7 0.08 0.1 0.12 0.5 msvb20j106m b2 6.3 10 0.08 0.1 0.12 0.6 msvb20j156m b2 6.3 15 0.08 0.1 0.12 0.9 msvb0j156m b 6.3 15 0.08 0.1 0.12 0.9 msvc0j336m c 6.3 33 0.08 0.1 0.12 2.0 msvd20j686m d2 6.3 68 0.08 0.1 0.12 4.2 msvd0j686m d 6.3 68 0.08 0.1 0.12 4.2 note the figures on the previous pages show data from the documents of various manufacturers. for further details, please contact the relevant manufacturer. diodes shindengen dins4 schottky barrier diodes characteristics smoothing capacitors nec msv series capacitors 1.4 0.8 0.6 forward voltage (v) forward current (a) 0.4 0.2 0 5 2 1 0.5 0.2 0.1 0.05 1.0 1.2 tp = 25 ?c (max.) tp = 125 ?c (max.) tp = 125 ?c (typ.) tp = 25 ?c (typ.) .com .com .com .com 4 .com u datasheet
s1f76300 series 4C32 epson s1f70000 series technical manual other applications voltage booster combining an s1f76330m1b0 switching regulator with an s1f76610c/m dc/dc converter and voltage regulator creates the voltage booster circuit shown in the following figure. potential levels are shown in the following figure. although the circuit appears to have two on/off con- trol points, ps on the s1f76330m1b0 and p off on the s1f76610c/m, ps only shuts down the s1f76330m1b0. the input voltage still reaches the s1f76610c/m through l and d. c c1 10 f c3 10 f c2 10 f + + v o v sw l d v i1 v i = ? v v o = ?5 v r osc 1 m w p off gnd ps c g c d r d s1f76330m s1f76610c/m 1 2 3 4 5 6 7 14 13 12 11 10 9 8 s1f76610c/m v dd (5 v) v dd (0 v) v o (?0 v) v o (5 v) v i (1.5 v) gnd (0 v) s1f76330m1b0 boost on v i = 1.5 v gnd = 0 v ps boost off boost on v i = 5v gnd = 0 v p off boost off .com .com .com .com 4 .com u datasheet
s1f76300 series s1f70000 series epson 4C33 technical manual s1f76300 series output voltage adjustment to ensure stable output, any circuit that adjusts the out- put voltage must contain c1, r a and r b . to stop switching current from affecting v o , the circuit must also satisfy the condition i o < i r . the following figure summarizes the relevant circuits inside an s1f70000 series chip. v o is connected to the level shift and buffer circuit, which provide the gate bias for the switching transistor driving the inductor. the current drain i o1 , varies with the load and is typically 10 m a. the current, i o2 , through the internal resistors r1 and r2 is typically 1 m a. v i v o i o c l (i o < i r ) i r r b r a c gnd v sw voltage adjustment circuit step-up voltage output sci7631m/c v sw v i comparator controller level shifter v o i o1 i o2 v ref r1 r2 i o buffer .com .com .com .com 4 .com u datasheet
s1f71100 series 4C34 epson s1f70000 series technical manual description s1f71100 is a pulse width modulation (pwm) type step-down dc/dc converter control ic for which the cmos process is used and to which a power transistor is connected outside. s1f71100 is composed of an os- cillator, a reference voltage circuit, an error amplifier, a pwm circuit, a soft start circuit, a driver, etc. when this ic drives an external p ch power mos transistor, s1f71100 can constitute a step-down dc/dc converter that converts input voltages up to 12v into the output voltage of 3.3v. s1f71100 is also provided with a low-voltage protec- tion circuit, an overcurrent protection circuit and a soft start protection circuit. when receiving external sig- nals, s1f71100 can stop the oscillator and the switching circuit and turn off the power, so that it can reduce wasteful current consumption at the time of system halt. features ? input voltage : 3.3v ~ 12v ? output voltage : 3.3v (s1f71100m0a0) ? power off current : 1 m a ? self current consumption : 800 m a ? frequency fixing (200khz) pwm ? power off function (ic shutdown) ? soft start function ? overcurrent protection function ? low-voltage protection function ? shipping pattern : plastic package sop4-8pin * radiation-resistant design has not been provided for this specification. block diagram + + v dd poffx i sense swo v ss sscap v o ercap low-voltage protection circuit reference voltage circuit soft start oscillator pwm circuit error amplifier driver overcurrent protection circuit + s1f71100 series pwm type step-down dc/dc switching regulator .com .com .com .com 4 .com u datasheet
s1f71100 series s1f70000 series epson 4C35 technical manual s1f71100 series pin assignments s scap poffx v dd i sense v ss v o ercap swo index 1 2 3 4 8 7 6 5 pin descriptions pin no. pin name pin type description 1s scap the soft start function is obtained when a capacitor is connected between the capacitor connection pin for setting soft start and the v ss pin. 2 poffx power off control pin during normal operation : v dd level at power off time : v ss level 3v dd power power supply pin (+) supply 4i sense load current feedback pin load current detection resistor connection pin (connect a resistor of 100m w ) 5 swo output switching pch power mos transistor drive pin 6 ercap C capacitor connection pin for external phase compensation 7v o input output voltage feedback pin 8v ss power power supply pin (C) supply top view sop4-8pin .com .com .com .com 4 .com u datasheet
s1f71100 series 4C36 epson s1f70000 series technical manual functional descriptions description of operation s1f71100 is a step-down switching regulator control ic of load current detection type pulse width modulation (pwm) system and is composed of an oscillator, a ref- erence voltage circuit, an error amplifier, a pwm cir- cuit, various protection circuits, etc. s1f71100 can constitute a switching regulator, which converters input voltages up to 12v into output voltages of 3.3v, when external parts such as a power mosfet, a diode, an inductor and a capacitor are connected to it. s1f71100 controls pwm by means of the two systems of output voltage feedback and load current feedback. the output voltage feedback system converts output voltage values of the switching regulator into voltage feedback signals through the error amplifier. and the load current feedback system detects currents flown to the external load current detection resistor as voltage values at the load current detection pin and converts them into current feedback signal in the internal circuit. these two feedback signals control the switching duty so that outputs from the switching regulator become optimum all the time. when the output voltage reduces, the output level of the error amplifier changes, and the switching duty is controlled so that the switching on duty of the output transistor increases. oscillator since s1f71100 has a built-in oscillator, and no exter- nal part is necessary. the oscillation frequency is fixed to 200khz (typ.). the oscillator stops its operation when the power is turned off. when the low-voltage protection circuit detects a low voltage, the output tran- sistor is turned off, but the oscillation continues inside the ic. soft start when a capacitor is connected to the sscap pin, s1f71100 can set a soft start operation to prevent inrush current at the time when the power is turned on. (figure 6-1) the sscap pin is at the v ss level when the power is turned off. when the soft start operation begins, the soft start capacitor starts being charged and the voltage at the sscap pin rises slowly. the output voltage rises gradually as the voltage at the sscap pin rises. this operation controls the switching pulse width at the time when the power is turned on and restrains surge current and output overshoot. the soft start time can be set ac- cording to the capacitance value of a capacitor to be connected. the voltage at the sscap pin drops to the v ss level when an overcurrent is detected, when a low voltage is detected or when the power is turned off, and the soft start operation begins. sscap pin soft start circuit soft start capacitor figure 6.1 connection diagram of sscap pin low-voltage protection circuit the low-voltage protection circuit monitors the supply voltage (voltage at the v dd pin). when the supply volt- age drops below a detected voltage value, the low-volt- age protection circuit works and stops the switching operation of the output transistor. this low-voltage pro- tection circuit links to the soft start circuit and drops the voltage at the sscap pin to the v ss level during detec- tion of low voltage. the low-voltage protection circuit has hysteresis. when the supply voltage returns to more than the re- lease voltage, the voltage at the sscap pin rises slowly and the soft start circuit starts it operation, then the low- voltage protection circuit resumes the switching opera- tion. overcurrent protection circuit when the current flowing through the current detection resistor increases more than the set current value and the voltage at the i sense pin drops below a detected voltage value, the overcurrent protection circuit oper- ates. when the overcurrent protection circuit operates, it maintains the swo pin at the v dd level and turns off the output transistor. it links to the soft start circuit, and the soft start circuit controls output voltage rise after de- tection of overcurrent. .com .com .com .com 4 .com u datasheet
s1f71100 series s1f70000 series epson 4C37 technical manual s1f71100 series power off function s1f71100 can control circuit operations according to external signal control. when the poffx pin is con- nected to the v ss level, all circuits stop their operations and their powers are turned off. the current consump- tion at the power off state is less than 1 m a. when the power is off, the swo pin is at the v dd level and turns off the voltage transistor. the voltage at the sscap pin absolute maximum ratings parameter symbol applicable pin rated value unit input voltage v dd v dd 15.0 v voltage at v o pin v o v o v ss C0.3 to v dd +0.3 v voltage at poffx pin poffx poffx v ss C0.3 to v dd +0.3 v voltage at ercap pin ercap ercap v ss C0.3 to v dd +0.3 v voltage at sscap pin sscap sscap v ss C0.3 to v dd +0.3 v voltage at swo pin swo swo v ss C0.3 to v dd +0.3 v voltage at i sense pin i sense i sense v ss C0.3 to v dd +0.3 v package allowable loss p d p d 300 mw ta 25?c operating temperature topr C C30 to +85 ?c storage temperature tstg C C55 to +150 ?c soldering temperature and time tsol C 260 10 ?cs note :any operation under conditions exceeding the above absolute maximum ratings may result in a malfunc- tion or a permanent destruction. when even an item is more than the rating, a temporary normal operation is possible but with remarkably low reliability. so, be sure to keep all items below the ratings. comes to the v ss level, and the output voltage is con- trolled with the soft start circuit after the power off state is released. in the operating state, set the poffx pin to the v dd level to operate it. the poffx pin cannot be operated in a open state. when the power off function is not used, connect the poffx pin to the v dd pin. .com .com .com .com 4 .com u datasheet
s1f71100 series 4C38 epson s1f70000 series technical manual electrical characteristics dc characteristics (s1f71100m0a0) unless otherwise specified, ta = 25?c. parameter symbol conditions specification unit min. typ. max. input supply voltage v dd 3.3 12.0 v output voltage v o v dd =5.0v 3.150 3.3 3.450 v ta=C30 to +85?c current consumption iv dd v dd =5.0v 0.8 1.4 ma during operation v o =v dd current consumption i opr1 v dd =5.0v 1.0 m a at power off time poffx=v ss output current i ohswo v dd =5.0v,v oh =50mv C1.0 ma at swo pin i olswo v dd =5.0v,v ol =50mv 1.0 ma input stability d v o v dd =5.0 to 10v 30 mv * load stability d v o i o =10ma to 300ma 30 mv * soft start time tss capacitance for ss =0.1 m f40ms v dd =5.0v * i o =300ma input voltage v ih 0.8v dd v at poffx pin v il 0.2v dd v leak current i linh v i =v dd 0.1 m a at poffx pin i linl v i =v ss C0.1 m a conversion efficiency effi v dd =5.0v 90 % i o =200ma * oscillation frequency f osc v dd =5.0v v o =v ss 150 200 250 khz swo pin overcurrent detection i det v dd =5.0v 0.08 0.12 0.16 v voltage (v dd -vi sense ) low-voltage detection v det1 object pin : v dd 2.5 2.6 2.7 v voltage value low-voltage detection v hys object pin : v dd 0.15 v hysteresis output voltage d v o v dd =5.0v 0.02 %/?c temperature coefficient d ta ta=C30 to +85?c * characteristics vary with applicable conditions and parts. select proper parts after sufficient evaluation. .com .com .com .com 4 .com u datasheet
s1f71100 series s1f70000 series epson 4C39 technical manual s1f71100 series example of external connection of reference circuit example of standard circuit + + + poffx i sense swo v ss v dd v dd cin2 cin1 sscap sscap soft start v o ercap ercap phase compen- sation low-voltage protection circuit error amplifier driver overcurrent protection circuit load current detection resistor r pch mostr dcv out v o 3.3v l pwm circuit soft start oscillator reference voltage circuit parts examples cin1 100 m f (sanyo 16sa100m) cin2 1 m f sscap 0.1 m f ercap 330pf r 100m w pchtr (hitachi 2sj484) l47 m h (sumida cd105) cv o 47 m f (sanyo 16sa47m) d schottkey (rohm rb161l-40) * characteristics vary with applicable conditions and parts. select proper parts after sufficient evaluation. .com .com .com .com 4 .com u datasheet
s1f71100 series 4C40 epson s1f70000 series technical manual mechanical data lead type std (sop4C8pin std) symbol dimension in milimeters dimension in inches * min. nom. max. min. nom. max. e 4.8 5 5.2 (0.189) (0.197) (0.204) d 1 a 1.75 (0.069) a 1 0.15 (0.006) a 2 1.6 (0.063) e 1.27 (0.05) b 0.25 0.35 0.45 (0.010) (0.014) (0.017) c 0.05 0.15 0.25 (0.002) (0.006) (0.009) q l 0.55 (0.022) l 1 l 2 h e 6.4 6.8 7.2 (0.252) (0.268) (0.283) d 4.8 5 5.2 (0.189) (0.197) (0.204) q 2 q 3 r r1 * for reference 85 14 index d e h e q e b a 1 a 2 a q 3 q 2 l c r r 1 l 1 l 2 reference plastic sop4-8pin .com .com .com .com 4 .com u datasheet
s1f71200 series s1f70000 series epson 4C41 technical manual s1f71200 series description s1f71200 is a step-up/step-down dc/dc converter control ic for which the cmos process is used and to which a power transistor is connected outside. s1f71200 is composed of an oscillator, a reference voltage circuit, an error amplifier, a pwm circuit, a se- ries regulator, a driver, etc. when this ic drives an ex- ternal power transistor, s1f71200 can constitute a step- up/step-down dc/dc converter that operates as a [step- down] series regulator when the input voltage is high and that operates as a [step-up] switching regulator of pulse width modulation system (pwm) when the input voltage is low. s1f71200 is also provided with an overcurrent protec- tion circuit and a soft start circuit. when receiving ex- ternal signals, s1f71200 can stop the oscillator and the switching circuit and turn off the power, so that it can reduce wasteful current consumption at the time of sys- tem halt. features ? input voltage : 2.5v to 12.0v ? output voltage : 5.0v (s1f71200m0a0) 3.3v (s1f71200m0b0) ? power off current : 1.0 m a ? self current consumption : 150 m a (step-up portion) 15 m a (step-down portion) ? frequency fixing (200khz) pwm at step-up time ? power off function (ic shutdown) ? soft start function ? overcurrent protection function ? shipping pattern : plastic package (ssop2-16 pin) * radiation-resistant design has not been provided for this specification. s1f71200 series pwm type step-up/down dc/dc switching regulator .com .com .com .com 4 .com u datasheet
s1f71200 series 4C42 epson s1f70000 series technical manual block diagram swo v dd1 v dd2 exo v o src i ref v ref ssc v ss swc v c poffx v sw i sense oscillator pwm _ + + _ _ + driver overcurrent detection circuit soft start series regulator error amplifier reference voltage circuit .com .com .com .com 4 .com u datasheet
s1f71200 series s1f70000 series epson 4C43 technical manual s1f71200 series pin assignments 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 index ssop2?6pin .com .com .com .com 4 .com u datasheet
s1f71200 series 4C44 epson s1f70000 series technical manual pin descriptions pin no. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 pin name v dd1 v dd2 exo v o src i ref v ref (n.c) poffx v c swc v sw v ss ssc i sense swo pin type power supply power supply output output output input input input output power system v dd1 v dd2 v dd2 v dd1 v dd1 v dd1 v dd1 v dd1 v dd1 v dd1 description power pin 1 (+), input power pin power pin 2 (+), power pin for series regulator circuit pnp transistor base drive pin for series regulator step-up/step-down output feedback pin series regulator phase compensation capaci- tor connection pin reference resistor connection pin. connect a 100k w resistor between the v ss pins. reference voltage pin. connect a 0.1 m f capacitance between the v ss pins. no connection power off control pin. during normal operation : poffx = v dd1 at power off time : poffx = v ss step-up output voltage setting pin. for setting v sw = v o + 1.0v : v c = v dd1 for setting v sw = v o + 0.5v : v c = v ss switching regulator phase compensation capacitor connection pin step-up output feedback pin power pin (C), ground pin capacitor connection pin for soft start overcurrent detection pin step-up switching power transistor drive pin .com .com .com .com 4 .com u datasheet
s1f71200 series s1f70000 series epson 4C45 technical manual s1f71200 series description of operation s1f71200 is a switching regulator (step-up) and series regulator (step-down) control ic of pulse width modu- lation (pwm) system. when external parts such as transistor, inductor, capacitor, diode and resistor are connected, s1f71200 can constitute a step-up/step- down dc/dc converter. when the input voltage is lower than the specified volt- age value, s1f71200 raises the voltage to the set volt- age (selectable at the v c pin) with the switching regula- tor and lowers the step-up voltage with the series regu- lator to stabilize the output voltage. on the other hand, when the input voltage is higher than the specified volt- age value, s1f71200 stops the operation of the switch- ing regulator (step-up) and operates the series regulator (step-down) only. switching operations with input voltage makes constant voltage outputs possible all the time. operation of switching regulator s1f71200 monitors voltage at the v sw pin, i.e., the out- put voltage of the step-up switching regulator, and con- trols pulse width of the switching transistor. when the voltage at the v sw pin drops below the step-up set volt- age, s1f71200 changes the output level of the error am- plifier and increases the on duty of the switching transistor for control. on the other hand, when the voltage at the v sw pin rises over the step-up set voltage, s1f71200 reduces the on duty for control. when voltages higher than the step-up set voltage is constantly supplied to the v sw pin, s1f71200 stops operation of the step-up switching. when the switching stops completely, the input voltage is supplied to the v sw pin through the coil and the di- ode. (the voltage at the v sw pin comes to the one ob- tained by reducing v f of the diode from the input volt- age.) step-up set voltage step-up set voltage can be selected at the v c pin. 1 v c = high v dd1 level : step-up set voltage = 6.0v (s1f71200m0a0) 4.3v (s1f71200m0b0) 2 v c = low v ss level : step-up set voltage = 5.5v (s1f71200m0a0) 3.8v (s1f71200m0b0) in case of output stability and heavy load like ripple, 1 is superior, bur for the conversion efficiency at step-up operation, 2 is superior. characteristics vary with ap- plicable external parts or voltage and load conditions. so, select a proper voltage after sufficient evaluation. the v c pin cannot be used in the open state. soft start when a capacitor is connected to the sscap pin, s1f71200 can set a soft start operation to prevent inrush current at the time when the power is turned on. the sscap pin is at the v ss level when the power is turned off (poffx=v ss ). when the operation state is set (poffx=v dd1 ), the soft start capacitor starts being charged and the voltage at the sscap pin rises slowly. the step-up output voltage rises gradually as the volt- age at the sscap pin rises. this operation is carried out when the power is turned on, when the power off is released or when the overcurrent detection is released and restrains surge current and output overshoot. functional descriptions .com .com .com .com 4 .com u datasheet
s1f71200 series 4C46 epson s1f70000 series technical manual overcurrent protection circuit the overcurrent protection circuit functions when an overcurrent flows through the current detection resistor during the step-up operation and the voltage at the i sense pin rises over the set voltage value. when the overcurrent protection function works, the transistor drive pin swo comes to the v ss level and the switch- ing transistor is turned off. since the overcurrent pro- tection circuit links to the soft start circuit, it drops the voltage at the sscap pin to the v ss level during overcurrent detection. when the overcurrent detection is released, the voltage at the sscap pin rises slowly and the soft start operation starts. power lost at the current detection resistor becomes a factor of lower efficiency. when the overcurrent pro- tection circuit is not necessary, short-circuit the i sense pin to the v ss pin. the i sense pin cannot be used in an open state. operation of series regulator s1f71200 has a built-in series regulator control circuit. when driving the pnp transistor as an external part, s1f71200 reduces voltage supplied to the v dd2 pin and constitutes a series regulator. the v dd2 pin is generally connected to the v sw pin of step-up output. this series regulator operates monitoring voltage at the v o pin of step-up/step-down output. it controls the drive current (base current of the pnp transistor) at the exo pin to stabilize voltage at the v o pin. power off function s1f71200 can control circuit operations according to external signal control. when the poffx pin is set to the v ss level, all circuits stop and their powers are turned off. the current consumption at the power off state is less than 1 m a. when the power is off, the swo pin is set to the v dd level, the exo pin is set to the v dd2 level and respective external transistors are turned. the voltage at the sscap pin comes to the v ss level, and the soft start circuit controls the step-up operation output voltage is controlled with the soft start circuit af- ter the power off state is released. the soft start circuit controls step-up operations after power off release. when being set to the v dd level, the poffx pin oper- ates in general. the poffx pin cannot be used in an open state. when the power off function is not used, connect the poffx pin to the v dd1 pin. .com .com .com .com 4 .com u datasheet
s1f71200 series s1f70000 series epson 4C47 technical manual s1f71200 series absolute maximum ratings symbol v dd exo v o src i ref v ref poffx v c swc v sw ssc i sense swo p d t opr t stg t sol applicable pin v dd1 v dd2 exo v o src i ref v ref poffx v c swc v sw ssc i sense swo p d rating 15.0 v ss C 0.3 to v dd2 + 0.3 v ss C 0.3 to 15 v ss C 0.3 to 15 v ss C 0.3 to v dd1 + 0.3 v ss C 0.3 to v dd1 + 0.3 v ss C 0.3 to v dd1 + 0.3 v ss C 0.3 to v dd1 + 0.3 v ss C 0.3 to 15 v ss C 0.3 to 15 v ss C 0.3 to v dd1 + 0.3 v ss C 0.3 to v dd1 + 0.3 v ss C 0.3 to v dd1 + 0.3 210 ta 25 c C30 to +85 C55 to +150 260 10 unit v v v v v v v v v v v v v mw c c c s note any operation under conditions exceeding the above absolute maximum ratings may result in a malfunction or a permanent destruction. when even an item is more than the rating, a temporary normal operation is possible but with remarkably low reliability. so, be sure to keep all items below the ratings. parameter input voltage voltage at exo pin voltage at v o pin voltage at src pin voltage at i ref pin voltage at v ref pin voltage at poffx pin voltage at v c pin voltage at swc pin voltage at v sw pin voltage at ssc pin i sense swo package allowable loss operating temperature storage temperature soldering temperature and time .com .com .com .com 4 .com u datasheet
s1f71200 series 4C48 epson s1f70000 series technical manual electrical characteristics s1f71200m0a0 (output : 5.0v) dc characteristics unless otherwise specified, ta = 25 c. parameter input supply voltage 1 input supply voltage 2 step-up set voltage output voltage operating time current consumption 1 (during step-up operation) operating time current consumption 2 (operation for step-down only) power off time current consumption output current at swo pin input stability load stability input voltage level at poffx pin, at v c pin symbol v dd1 v dd2 v sw v o iv dd1-1 (v dd1 system) iv dd2-1 (v dd2 system) iv dd1-2 (v dd1 system) iv dd2-2 (v dd2 system) i q i ohswo i olswo d v o d v o v ih v il conditions v dd1 pin v dd2 pin v sw1 pin, v c = v dd1 v c = v ss v dd2 = 6v ta = C30 c to +85 c v dd1 = 3v, v dd2 = 6v v dd1 = 3v, v dd2 = 6v v dd1 = 6v, v dd2 = 6v v dd1 = 6v, v dd2 = 6v v dd1 = 12v, v dd2 = 12v v dd1 = 3v, v dd2 = 6v v oh = 50mv v dd1 = 3v, v dd2 = 6v v ol = 50mv v dd = 3v to 12v i l = 10ma to 100ma unit v v v v m a m a m a m a m a ma ma mv * mv * v v min. 2.5 4.8 C0.6 1.0 0.8v dd1 typ. 6.0 5.5 5.0 150 15 100 20 50 50 max. 12.0 12.0 5.2 250 30 200 40 1.0 0.2v dd1 rating .com .com .com .com 4 .com u datasheet
s1f71200 series s1f70000 series epson 4C49 technical manual s1f71200 series * these values are available when external parts are used in the example of circuit connection shown on the at- tached sheet. the characteristics vary with applicable parts. select proper parts after sufficient evaluation. min. 120 0.10 typ. 100 85 200 0.15 0.015 max. 1.0 C1.0 280 0.20 parameter input pin leak current at poffx pin, at v c pin step-up soft start time step-up portion conversion efficiency oscillation frequency overcurrent detection voltage output voltage temperature coefficient symbol i linh i linl t ss effi f osc i det d v o d t opr conditions v in = v dd1 v in = v ss sscap = 0.1 m f v dd1 = 3.0v, v c = v dd1 i o = 50ma v dd1 = 3.3v, v c = v ss v dd1 = 3v (measure it at the swo pin.) v isense ta = C30 c to +85 c unit m a m a ms * % * khz v %/ c rating dc characteristics unless otherwise specified, ta = 25 c. .com .com .com .com 4 .com u datasheet
s1f71200 series 4C50 epson s1f70000 series technical manual s1f71200m0b0 (output : 3.3v) dc characteristics unless otherwise specified, ta = 25 c. min. 2.5 3.15 C0.6 1.0 0.8v dd1 max. 12.0 12.0 3.45 250 30 200 40 1.0 0.2v dd1 typ. 4.3 3.8 3.3 150 15 100 20 50 50 rating parameter input supply voltage 1 input supply voltage 2 step-up set voltage output voltage operating time current consumption 1 (during step-up operation) operating time current consumption 2 (operation for step-down only) power off time current consumption output current at swo pin input stability load stability input voltage level at poffx pin, at v c pin symbol v dd1 v dd2 v sw v o iv dd1-1 (v dd1 system) iv dd2-1 (v dd2 system) iv dd1-2 (v dd1 system) iv dd2-2 (v dd2 system) i q i ohswo i olswo d v o d v o v ih v il conditions v dd1 pin v dd2 pin v sw1 pin, v c = v dd1 v c = v ss v dd2 = 4.3v ta = C30 c to +85 c v dd1 = 3v, v dd2 = 4.3v v dd1 = 3v, v dd2 = 4.3v v dd1 = 5v, v dd2 = 5v v dd1 = 5v, v dd2 = 5v v dd1 = 12v, v dd2 = 12v v dd1 = 3v, v dd2 = 4.3v v oh = 50mv v dd1 = 3v, v dd2 = 4.3v v ol = 50mv v dd = 3v to 12v i l = 10ma to 100ma unit v v v v m a m a m a m a m a ma ma mv * mv * v v .com .com .com .com 4 .com u datasheet
s1f71200 series s1f70000 series epson 4C51 technical manual s1f71200 series * these values are available when external parts are used in the example of circuit connection shown on the at- tached sheet. the characteristics vary with applicable parts. select proper par ts after sufficient evaluation. rating min. 120 0.10 typ. 70 85 200 0.15 0.015 max. 1.0 C1.0 280 0.20 parameter input pin leak current at poffx pin, at v c pin step-up soft start time step-up portion conversion efficiency oscillation frequency overcurrent detection voltage output voltage temperature coefficient symbol i linh i linl t ss effi f osc i det d v o d t opr conditions v in = v dd1 v in = v ss sscap = 0.1 m f v dd1 = 3.0v, v c = v dd1 i o = 50ma v dd1 = 3v, v c = v ss v dd = 3v (measure it at the swo pin.) v isense ta = C30 c to +85 c unit m a m a ms * % * khz v %/ c dc characteristics unless otherwise specified, ta = 25 c. .com .com .com .com 4 .com u datasheet
s1f71200 series 4C52 epson s1f70000 series technical manual example of external connection of reference circuit basic circuit swo v dd1 v dd2 exo v o src i ref v ref ssc v ss swc v c poffx v sw i sense pwm _ + + _ _ + oscillator driver overcurrent detection circuit soft start series regulator error amplifier reference voltage circuit input voltage output voltage .com .com .com .com 4 .com u datasheet
s1f71200 series s1f70000 series epson 4C53 technical manual s1f71200 series example of parts connection swo v dd1 s1f71200 v dd2 pnptr exo v o cv sw d l src cv out cv dd1 v bat ac/dc i ref v ref ri ref cv ref ssc cssc v ss swc vc poffx v sw i sense r sense n ch mostr input voltage output voltage parts examples cv dd1 47 m f (sanyo 16sa47m) nchtr (hitachi hat2037t) l47 m h (sumida cr54) d schottky (rohm rb161l-40) cv sw 47 m f (sanyo 16sa47m) pnptr (2sa1242) cv out 22 m f (sanyo 10sl22m) ri ref 100k w cv ref 0.1 m f cssc 0.1 m f r sense 0.1 w * characteristics vary with applicable conditions and parts. select proper parts after sufficient evaluation. .com .com .com .com 4 .com u datasheet
s1f71200 series 4C54 epson s1f70000 series technical manual mechanical data plastic ssop2-16pin reference 9 8 16 1 d d 1 e h e b a 1 a 2 a index e q 3 q 2 l c r r 1 l 1 l 2 q * for reference symbol e d 1 a a 1 a 2 e b c q l l 1 l 2 h e d q 2 q 3 r r 1 min. 4.2 6.4 1.4 0.26 0.1 0 0.3 5.9 nom. 4.4 6.6 0.05 1.5 0.8 0.36 0.15 0.5 0.9 0.4 6.2 max. 4.6 6.8 1.7 1.6 0.46 0.25 10 0.7 6.5 7 min. (0.166) (0.252) (0.056) (0.011) (0.004) (0 ) (0.012) (0.233) nom. (0.173) (0.260) (0.002) (0.059) (0.031) (0.014) (0.006) (0.020) (0.035) (0.016) (0.244) max. (0.181) (0.267) (0.066) (0.062) (0.018) (0.009) (10 ) (0.027) (0.255) (0.275) dimension in milimeters dimension in inches * lead type std (ssop2-16pin std) .com .com .com .com 4 .com u datasheet
5. dc/dc switching regulators & voltage follower .com .com .com .com 4 .com u datasheet
s1f75300 series s1f70000 series epson 5C1 technical manual s1f75300 series description s1f75300 is a highly efficient and low power consump- tion step-up switching regulator with built-in voltage follower developed by using cmos silicon gate pro- cessor. (for boosting, the external coil is used.) the output voltage is adjustable with the 8-bit elec- tronic volume. this ic is optimum to power supply portions of me- dium and small liquid crystal panels for which high effi- ciency is requested. features ? boosting efficiency : 80% ? low current consumption : typ.200 m a (without load) ? output voltage (step-up output) : 30v max., adjustable with the electronic vol- ume. ? optimum to small and medium liquid crystal panels input voltage : 2.7v to 5.5v output voltage : to 27v ? reduction of current consumption at the time of standby with power-off function s1f75300 series step-up switching regulator with built-in voltage follower amplified voltage temperature coefficient voltage follower product output at v o2 pin at v o2 pin duty voltage s1f75300m0a0 25v 22v C0.06%/?c 1/160 s1f75300m0b0 27v 24v C0.06%/?c 1/240 line up .com .com .com .com 4 .com u datasheet
s1f75300 series 5C2 epson s1f70000 series technical manual block diagram v dd v ss v ss2 clk v o2 v sw v o1 v ref v 0 v 1 v 2 v 3 v 4 data latch en v ol nc r osc pwm control circuit electronic volume portion figure 1 block diagram of s1f75300 .com .com .com .com 4 .com u datasheet
s1f75300 series s1f70000 series epson 5C3 technical manual s1f75300 series pin descriptions pin assignments data clk latch nc v ss r osc en v ss2 nc v sw v dd ssop1-20pin v ol v o1 v o2 nc v 0 v 1 v 2 v 3 v 4 120 10 11 figure 2 pin assignments pin name data clk latch nc v ss , v ss2 r osc en v sw v 4 v 3 v 2 v 1 v 0 v o2 v o1 v ol v dd description data input pin for adjusting electronic volume bias clock input pin for adjusting electronic volume bias data latch input pin for adjusting electronic volume bias no connection gnd pin external resistance connection pin for adjusting oscillation current enable pin. high : normal operation, low : system operation stop external inductance drive pin liquid crystal drive voltage pin 4 liquid crystal drive voltage pin 3 liquid crystal drive voltage pin 2 liquid crystal drive voltage pin 1 liquid crystal drive voltage pin 0 output voltage pin output voltage monitor pin output voltage external adjustment pin power supply pin pin no. 1 2 3 4,9,16 5,8 6 7 10 11 12 13 14 15 17 18 19 20 .com .com .com .com 4 .com u datasheet
s1f75300 series 5C4 epson s1f70000 series technical manual functional descriptions switching regulator portion operation of basic boosting circuit s1f75300 boosts using clock pulses generated in the pwm control circuit. figure 3 shows the block diagram for explaining the principle of operation of the boosting circuit. this circuit stores energy in the inductance l when the switching transistor (tr1) is on and can charge the capacitor c with the stored energy by passing it through the diode d for output when the switching transistor is off. figure 3 block diagram of boosting circuit d c v o1 v dd v sw v dd v ss /v ss2 r osc tr 1 pwm control circuit l .com .com .com .com 4 .com u datasheet
s1f75300 series s1f70000 series epson 5C5 technical manual s1f75300 series reference voltage generator, output voltage setting stabilizing circuit ? reference voltage generator, output voltage set- ting stabilizing circuit the reference voltage generator is for generating stabi- lized voltage (reference voltage) not depending on input voltage necessary for the output voltage setting stabiliz- ing circuit or the voltage detection circuit. the reference voltage generator has a built-in tempera- ture characteristic compensation circuit. for the tem- perature characteristic, any one temperature character- istics can be selected out of four temperature character- istics in the range from C0.18%/ c to C0.06%/ c. (se- lection with mask option. the output voltage setting stabilizing circuit outputs the stabilized voltage v o2 after receiving a boosted volt- age. the output voltage v o2 can be set to a specified voltage when the position of point a on the intermedi- ate tap of the resistor connected between the pin v o2 and the pin gnd as shown in figure 4 is changed. the variable resistor in figure 4 has the function of electronic volume and can change the output v o2 as the resistance value is changed as mentioned in paragraph 5.1.3. v ref v o1 c v o2 ld v ol v ss /v ss2 v dd r osc v sw v dd a tr 1 figure 4 stabilizing circuit note in the practical boosting state, a ripple voltage is super- imposing the output setting voltage set as mentioned above. since this ripple voltage is affected by appli- cable external parts and loading conditions, set the value of the coil through which the load current passes and check it before use. ? output voltage external adjustment pin (v ol ) the voltage v o2 boosted and stabilized with the output voltage setting stabilizing circuit can slightly adjust out- put voltages when an external resistor is connected to the output voltage external adjustment pin v ol as shown in figure 10 in chapter 7, example of external connection. .com .com .com .com 4 .com u datasheet
s1f75300 series 5C6 epson s1f70000 series technical manual electronic volume portion s1f75300 has a built-in 8-bit shift register and a built-in 8-bit latch so that it can vary the voltage v o2 when se- rial data is input. the 8-bit latch enables to vary the output voltage v o2 . data taken in the shift register is taken in the 8-bit latch as a synchronous strobe is input. the following shows the block diagram and the timing chart. data : serial data input pin for setting output volt- age and bias value. "data 1" is input at the high level and "data 0" is input at the low level. data are input to (lsb) and (msb) in this order. clk : clock input to shift register pin when the clock starts, data at the data pin is taken in the shift register. data to be taken in shift one after another for every clock. so, data input last becomes valid. latch : latch signal input pin when latch signal is set to high the content of the shift register is taken in the 8-bit latch. data clk latch 8-bit shift register 8-bit latch electronic volume figure 5-1 block diagram .com .com .com .com 4 .com u datasheet
s1f75300 series s1f70000 series epson 5C7 technical manual s1f75300 series d0 data clock latch d1 d2 d3 d4 d5 d6 d7 figure 5-2 timing chart of 8-bit latch portion d7 0 0 1 1 d6 0 1 0 1 d5 0 1 0 1 d4 0 1 0 1 d3 0 1 0 1 d2 0 1 0 1 d1 0 1 0 1 d0 0 1 0 1 electronic volume value 0 127 128 255 table 1 list of electronic volume set points .com .com .com .com 4 .com u datasheet
s1f75300 series 5C8 epson s1f70000 series technical manual voltage follower portion the voltage follower portion of s1f75300 enables to adjust bias with the electronic volume as explained in para- graph 5.1.3. figure 6 shows the block diagram of the voltage follower portion. after the power is turned on, the resistance between v 2 and v 3 is set to nr. (the n value is selected optionally.) when n is 11 and 13 for example, the voltages at v 1 to v 4 are as follows after the power is turned on: v 0 r r nr r r v 1 v 2 v 3 v 4 figure 6 block diagram of voltage follower en pin this pin is for boosting action and for stopping and starting the voltage follower portion. when the en pin is set to low level, the internal circuit action stops and the current consumption is restrained. n=11 n=13 (1/160 duty) (1/240 duty) v 1 13/14?v 0 16/17?v 0 v 2 12/14?v 0 16/17?v 0 v 3 2/14?v 0 2/17?v 0 v 4 1/14?v 0 1/17?v 0 table 2 output voltage of voltage follower .com .com .com .com 4 .com u datasheet
s1f75300 series s1f70000 series epson 5C9 technical manual s1f75300 series electrical characteristics absolute maximum ratings (v ss = 0v, ta=25 c) max. 33 100 7 130 85 150 260 ? 10 min. v ss C 0.3 v ss C 0.3 C30 C65 parameter vsw pin voltage vsw pin current voltage of other pins allowable loss operating temperature storage temperature soldering temperature and time symbol v vsw i vsw v * p d t opr t stg t sol rating unit v ma v mw c c ?c ? s remarks at leads .com .com .com .com 4 .com u datasheet
s1f75300 series 5C10 epson s1f70000 series technical manual unit v v m a m a w m a %/v mv %/ c khz % k w ma % max. 5.5 30 5 15 1 155 90 256 18 typ. 200 0.5 90 C0.18 C0.15 C0.10 C0.06 150 80 min. 2.7 145 80 64 symbol v dd v o i opr i en r swon i swq d v o1 d v o1 / d ta f clk f duty r vol i o2 eff parameter input voltage amplified output voltage current consumption current consumption at enable time switching transistor on-state resistance switching transistor leak current input stability load stability output voltage / temperature coefficient oscillation frequency maximum duty ratio resistance between pins v ol and v ss v o2 output current efficiency electrical characteristics step-up switching regulator and voltage follower portion dc characteristics rating conditions v dd = 5.0v v o2 =27v v o2 =27v, ivout2=C10ma .com .com .com .com 4 .com u datasheet
s1f75300 series s1f70000 series epson 5C11 technical manual s1f75300 series conditions i oh = 2ma, v 1 = no-load voltage i ol = C2ma, v 1 = no-load voltage i oh = 2ma, v 2 = no-load voltage i ol = C2ma, v 2 = no-load voltage i oh = 2ma, v 3 = no-load voltage i ol = C2ma, v 3 = no-load voltage i oh = 2ma, v 4 = no-load voltage i ol = C2ma, v 4 = no-load voltage unit ma ma ma ma max. v 1 C 50mv v 2 C 70mv v 3 C 50mv v 4 C 70mv typ. min. v 1 + 70mv v 2 + 50mv v 3 + 70mv v 4 + 50mv parameter v 1 output current v 2 output current v 3 output current v 4 output current symbol v 1oh v 1ol v 2oh v 2ol v 3oh v 3ol v 4oh v 4ol rating .com .com .com .com 4 .com u datasheet
s1f75300 series 5C12 epson s1f70000 series technical manual typ. 1/256 electronic volume dc characteristics rating conditions parameter output voltage range electronic volume resolution linearity error high level input voltage low level input voltage symbol v o2 v ih v il min. 2.0 max. 30 1/2 0.8 unit v lsb v v ac characteristics parameter clk cycle data setup time data hold time latch pulse width clk power off ? latch start latch power off ? clk start symbol t clk t cst t cht t wltc t lst t lht min. 1 0.5 0.5 0.5 0.5 0.5 typ. max. rating unit m s m s m s m s m s m s conditions d6 data clk t cst t cht t clk t lst t lht t wltc latch d7 d0 figure 8 electronic volume portion ac characteristic timing chart .com .com .com .com 4 .com u datasheet
s1f75300 series s1f70000 series epson 5C13 technical manual s1f75300 series example of external connection (1) connection example 1 figure 9 shows an example of the basic circuit of s1f75300. (2) connection example 2 figure 10 shows a connection example for connecting a variable resistor to the v ol pin so as to adjust v o2 . (3) connection example 3 figure 11 shows a connection example for connecting a temperature compensation circuit between pins v o2 and v 0 so as to adjust temperature correction of voltage of the voltage follower portion with an external circuit. figure 12 shows an example of a temperature compensation circuit. figure 9 connection example 1 figure 10 connection example 2 figure 11 connection example 3 figure 12 example of temperature compensation circuit v sw v sw /v ss2 v o1 v dd v o2 v 1 ,v 2 ,v 3 ,v 4 v 0 v ol r osc v sw v sw /v ss2 v o1 v dd v o2 v 1 ,v 2 ,v 3 ,v 4 v 0 v ol r osc v sw v sw /v ss2 v o1 v dd v o2 v 1 ,v 2 ,v 3 ,v 4 v 0 v ol r osc temperature compensation circuit v o2 v 0 thermistor .com .com .com .com 4 .com u datasheet
s1f75300 series 5C14 epson s1f70000 series technical manual example of reference circuit the figure below shows an example of connection of this ic and a liquid crystal display panel. figure 14 example of reference circuit v sw v o1 v dd v ss /v ss2 v o2 v 0 v 1, v 2, v 3, v 4 v ol r osc liquid crystal display panel .com .com .com .com 4 .com u datasheet
6. voltage detector .com .com .com .com 4 .com u datasheet
s1f70000 series epson 6C1 technical manual s1f77200y series s1f77200y series description the s1f77200y series products are non-adjusting volt- age detectors being developed utilizing he base of the cmos silicon gate process. this voltage detector consists of the reference voltage circuit, voltage comparator, hysteresis circuit and out- put circuit, all operating on smaller current. a voltage range to be detected is internally set on re- spective detectors. a wide variety of our standard prod- ucts are grouped as shown below according to the out- put format employed for the voltage detector output pin. the s1f77200y series employs n-channel open drain output approach. and the s1f77210y series and s1f 77220y series employ the cmos output and p-channel output, respectively. the package used is the sot89-3 pin plastic package. our voltage detectors are used for determining battery life, and also for monitoring supply voltage fed to mi- crocomputers and lsi systems. features ? full lineups: 19 types are prepared for the detection range between 2.0v to 5.0v. for the detection range from 0.8v to 2.5v, 7 types are available (products designed for lower voltage detection). ? low operating current: typ. 2.0 m a (v dd = 5.0v). ? low operating voltage: 1.5v at minimum. ? absolute maximum rated voltage: 15v maximum. ? highly stable built-in reference voltage source: typ. 1.0v. ? better temperature characteristics of output voltage: typ. -100ppm/ c. s1f77200y series cmos voltage detectors .com .com .com .com 4 .com u datasheet
s1f77200y series 6C2 epson s1f70000 series technical manual lineup table 5-1 product voltage detectable output type output phase min. typ. max. less than v det v det or above s1f77210y1c0 2.10 2.15 2.20 cmos low level high level s1f77210y1p0 2.20 2.25 2.30 cmos low level high level s1f77210y1s0 2.30 2.35 2.40 cmos low level high level s1f77210y1e0 2.50 2.55 2.60 cmos low level high level s1f77210y1f0 2.60 2.65 2.70 cmos low level high level s1f77210y1r0 2.73 2.80 2.87 cmos low level high level s1f77210y1g0 2.93 3.00 3.07 cmos low level high level s1f77210y1h0 3.13 3.20 3.27 cmos low level high level s1f77210y130 3.43 3.50 3.57 cmos low level high level s1f77210y1t0 3.90 4.00 4.10 cmos low level high level s1f77210y1m0 4.10 4.20 4.30 cmos low level high level s1f77210y1j0 4.30 4.40 4.50 cmos low level high level s1f77210y120 4.50 4.60 4.70 cmos low level high level s1f77210y1k0 4.70 4.80 4.90 cmos low level high level s1f77210y1l0 4.90 5.00 5.10 cmos low level high level s1f77210y2c0 2.10 2.15 2.20 cmos high level low level s1f77210y2f0 2.60 2.65 2.70 cmos high level low level product voltage detectable output type output phase min. typ. max. less than v det v det or above s1f77200y1t0 3.90 4.00 4.10 n ch open drain low level hiCz s1f77200y1f0 2.60 2.65 2.70 n ch open drain low level hiCz s1f77200y1c0 2.10 2.15 2.20 n ch open drain low level hiCz s1f77200y1n0 1.85 1.90 1.95 n ch open drain low level hiCz s1f77200y1b0 1.10 1.15 1.20 n ch open drain low level hiCz s1f77200y1y0 1.05 1.10 1.15 n ch open drain low level hiCz s1f77200y1a0 1.00 1.05 1.10 n ch open drain low level hiCz s1f77200y1v0 0.90 0.95 1.00 n ch open drain low level hiCz s1f77220y2d0 1.20 1.25 1.30 p ch open drain high level hiCz table 5-2 .com .com .com .com 4 .com u datasheet
s1f70000 series epson 6C3 technical manual s1f77200y series s1f77200y series block diagram s1f77200y1 * 0 type s1f77200y2 * 0 type s1f77210y1 * 0 type s1f77210y2 * 0 type s1f77220y1 * 0 type s1f77220y2 * 0 type note: a different code can be employed for the ones preceded by * marking depending on their detecting voltage specification. v dd (2pin) out (1pin) t + e v ss (3pin) t v ref v dd (2pin) out (1pin) t + e v ss (3pin) t v ref v dd (2pin) out (1pin) t + e v ss (3pin) t v ref v dd (2pin) out (1pin) t + e v ss (3pin) t v ref vdd (2pin) out (1pin) t vss (3pin) t + e v ref v dd (2pin) out (1pin) t v ss (3pin) t + e v ref .com .com .com .com 4 .com u datasheet
s1f77200y series 6C4 epson s1f70000 series technical manual pin descriptions pin no. pin name description 1 out voltage detection output pin 2v dd input voltage pin (positive side) 3v ss input voltage pin (negative side) pin assignments sot89-3pin functional descriptions the s1f77200y series has the circuit configuration as shown in the figure below. for the detection, divided potential (v reg ) across the resistors inserted across the power supply and the reference voltage (v ref ) gener- ated on the ic are entered to the voltage comparator. since the voltage comparator is designed to detect a tar- get voltage even when potential difference between v reg and vref minute, hysteresis is added so that the comparator may not fail due to noise on the power sup- ply and such. in the example shown in the figure below, detection voltage (v det ) for the input voltage drop and relief voltage (v rel ) for the increased input voltage are set based the following formula. detection voltage: v det = r1+r2+r3 ? v ref r2+r3 relief voltage: v rel = r1+r2+r3 ? v ref r3 13 2 v dd (2pin) v ss (3pin) out (1pin) t r1 r3 r2 + e t (v reg ) v ref .com .com .com .com 4 .com u datasheet
s1f70000 series epson 6C5 technical manual s1f77200y series s1f77200y series the following figures show the input and output characteristics of the s1f77200y series. [s1f772 * 0y1 * 0 type] s1f772 * 0y2 * 0 type note: the above input/output characteristics assumes that the pull up resistor is connected to the output pin for the s1f77200y series. for the s1f77220 series, it assumes that the pull down resistor is connected between the out and v dd pins. if the input voltage that is applied between v dd and v ss terminals drops below the lower limit of voltage for ic operation, the output condition of the out terminal may become unsteady. ensure to prevent problems from occurring in circuit operation. absolute maximum ratings out 0 0v dd (v1) v hys v det : detection voltage v rel : relief voltage v rel v det operating voltage upper limit operating voltage lower limit out 0 0v dd (v1) v hys v det : detection voltage v rel : relief voltage v rel v det operating voltage upper limit operating voltage lower limit parameter symbol rating unit supply voltage range v dd C v ss 15 v v dd + 0.3 to v ss C 0.3 (s1f77210) output voltage v o 15 to v ss C 0.3 v (s1f77200) v dd + 0.3 to v dd C 15 (s1f77220) output current i o 50 ma allowable dissipation p d 200 mw operating temperature topr C40 to +85 c C30 to +85 (designed for lower voltage operation) storage temperature tstg C65 to +150 ?c soldering temperature tsol 260 10 ?c s and time (at leads) .com .com .com .com 4 .com u datasheet
s1f77200y series 6C6 epson s1f70000 series technical manual electric characteristics s1f77210y1p0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 2.20 2.25 2.30 v hysteresis width v hys v hys = v rel C v det 0.05 0.10 0.15 v operating current i dd v dd = 3.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 3.0v C1.00 C0.25 ma out = 2.7v low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 3v ? 2v 840 m s detection voltage t phl ta = 25 c response time v dd = 3v ? 2v 200 m s ta = C30 c to +85 c s1f77210y1c0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 2.10 2.15 2.20 v hysteresis width v hys v hys = v rel C v det 0.05 0.10 0.15 v operating current i dd v dd = 3.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 3.0v C1.00 C0.25 ma out = 2.7v low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 3v ? 2v 840 m s detection voltage t phl ta = 25 c response time v dd = 3v ? 2v 200 m s ta = C30 c to +85 c .com .com .com .com 4 .com u datasheet
s1f70000 series epson 6C7 technical manual s1f77200y series s1f77200y series s1f77210y1s0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 2.30 2.35 2.40 v hysteresis width v hys v hys = v rel C v det 0.05 0.10 0.15 v operating current i dd v dd = 3.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 3.0v C1.00 C0.25 ma out = 2.7v low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 3v ? 2v 840 m s detection voltage t phl ta = 25 c response time v dd = 3v ? 2v 200 m s ta = C30 c to +85 c s1f77210y1e0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 2.50 2.55 2.60 v hysteresis width v hys v hys = v rel C v det 0.05 0.10 0.15 v operating current i dd v dd = 3.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 3.0v C1.00 C0.25 ma out = 2.7v low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 3v ? 2v 840 m s detection voltage t phl ta = 25 c response time v dd = 3v ? 2v 200 m s ta = C30 c to +85 c .com .com .com .com 4 .com u datasheet
s1f77200y series 6C8 epson s1f70000 series technical manual s1f77210y1f0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 2.60 2.65 2.70 v hysteresis width v hys v hys = v rel C v det 0.05 0.10 0.15 v operating current i dd v dd = 3.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 3.0v C1.00 C0.25 ma out = 2.7v low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 3v ? 2v 840 m s detection voltage t phl ta = 25 c response time v dd = 3v ? 2v 200 m s ta = C30 c to +85 c s1f77210y1r0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 2.73 2.80 2.87 v hysteresis width v hys v hys = v rel C v det 0.05 0.10 0.15 v operating current i dd v dd = 3.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 3.0v C1.00 C0.25 ma out = 2.7v low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 3v ? 2v 840 m s detection voltage t phl ta = 25 c response time v dd = 3v ? 2v 200 m s ta = C30 c to +85 c .com .com .com .com 4 .com u datasheet
s1f70000 series epson 6C9 technical manual s1f77200y series s1f77200y series s1f77210y1g0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 2.93 3.00 3.07 v hysteresis width v hys v hys = v rel C v det 0.09 0.15 0.21 v operating current i dd v dd = 4.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 4.0v C1.60 C0.40 ma out = 3.6v low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 4v ? 3v 840 m s detection voltage t phl ta = 25 c response time v dd = 4v ? 3v 200 m s ta = C30 c to +85 c s1f77210y1h0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 3.13 3.20 3.27 v hysteresis width v hys v hys = v rel C v det 0.09 0.15 0.21 v operating current i dd v dd = 4.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 4.0v C1.60 C0.40 ma out = 3.6v low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 4v ? 3v 840 m s detection voltage t phl ta = 25 c response time v dd = 4v ? 3v 200 m s ta = C30 c to +85 c .com .com .com .com 4 .com u datasheet
s1f77200y series 6C10 epson s1f70000 series technical manual s1f77210y130 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 3.43 3.50 3.57 v hysteresis width v hys v hys = v rel C v det 0.09 0.15 0.21 v operating current i dd v dd = 4.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 4.0v C1.60 C0.40 ma out = 3.6v low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 4v ? 3v 840 m s detection voltage t phl ta = 25 c response time v dd = 4v ? 3v 200 m s ta = C30 c to +85 c s1f77210y1t0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 3.90 4.00 4.10 v hysteresis width v hys v hys = v rel C v det 0.13 0.20 0.27 v operating current i dd v dd = 5.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 5.0v C2.00 C0.50 ma out = 4.5v low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 5v ? 4v 840 m s detection voltage t phl ta = 25 c response time v dd = 5v ? 4v 200 m s ta = C30 c to +85 c .com .com .com .com 4 .com u datasheet
s1f70000 series epson 6C11 technical manual s1f77200y series s1f77200y series s1f77210y1m0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 4.10 4.20 4.30 v hysteresis width v hys v hys = v rel C v det 0.13 0.20 0.27 v operating current i dd v dd = 5.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 5.0v C2.00 C0.50 ma out = 4.5v low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 5v ? 4v 840 m s detection voltage t phl ta = 25 c response time v dd = 5v ? 4v 200 m s ta = C30 c to +85 c s1f77210y1j0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 4.30 4.40 4.50 v hysteresis width v hys v hys = v rel C v det 0.13 0.20 0.27 v operating current i dd v dd = 5.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 5.0v C2.00 C0.50 ma out = 4.5v low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 5v ? 4v 840 m s detection voltage t phl ta = 25 c response time v dd = 5v ? 4v 200 m s ta = C30 c to +85 c .com .com .com .com 4 .com u datasheet
s1f77200y series 6C12 epson s1f70000 series technical manual s1f77210y120 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 4.50 4.60 4.70 v hysteresis width v hys v hys = v rel C v det 0.08 0.15 0.22 v operating current i dd v dd = 5.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 5.0v C2.00 C0.50 ma out = 4.5v low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 5v ? 4v 840 m s detection voltage t phl ta = 25 c response time v dd = 5v ? 4v 200 m s ta = C30 c to +85 c s1f77210y1k0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 4.70 4.80 4.90 v hysteresis width v hys v hys = v rel C v det 0.13 0.20 0.27 v operating current i dd v dd = 5.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 5.0v C2.00 C0.50 ma out = 4.5v low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 5v ? 4v 840 m s detection voltage t phl ta = 25 c response time v dd = 5v ? 4v 200 m s ta = C30 c to +85 c .com .com .com .com 4 .com u datasheet
s1f70000 series epson 6C13 technical manual s1f77200y series s1f77200y series s1f77210y1l0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 4.90 5.00 5.10 v hysteresis width v hys v hys = v rel C v det 0.13 0.20 0.27 v operating current i dd v dd = 6.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 6.0v C2.40 C0.60 ma out = 5.4v low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 6v ? 4v 840 m s detection voltage t phl ta = 25 c response time v dd = 6v ? 4v 200 m s ta = C30 c to +85 c s1f77210y1c0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 2.10 2.15 2.20 v hysteresis width v hys v hys = v rel C v det 0.05 0.10 0.15 v operating current i dd v dd = 3.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 2.0v C0.40 C0.10 ma out = 1.8v low level output current i ol v dd = 3.0v 0.50 2.00 ma out = 0.3v v dd = 3v ? 2v 840 m s detection voltage t phl ta = 25 c response time v dd = 3v ? 2v 200 m s ta = C30 c to +85 c .com .com .com .com 4 .com u datasheet
s1f77200y series 6C14 epson s1f70000 series technical manual s1f77210y1f0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 2.60 2.65 2.70 v hysteresis width v hys v hys = v rel C v det 0.05 0.10 0.15 v operating current i dd v dd = 3.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det high level output current i oh v dd = 2.0v C0.40 C0.10 ma out = 1.8v low level output current i ol v dd = 3.0v 0.50 2.00 ma out = 0.3v v dd = 3v ? 2v 840 m s detection voltage t phl ta = 25 c response time v dd = 3v ? 2v 200 m s ta = C30 c to +85 c s1f77200y1t0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 3.90 4.00 4.10 v hysteresis width v hys v hys = v rel C v det 0.13 0.20 0.27 v operating current i dd v dd = 5.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 5v ? 4v 840 m s detection voltage t phl ta = 25 c response time v dd = 5v ? 4v 200 m s ta = C30 c to +85 c .com .com .com .com 4 .com u datasheet
s1f70000 series epson 6C15 technical manual s1f77200y series s1f77200y series s1f77200y1f0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.50 12.0 v detection voltage v det ta = 25 c 2.60 2.65 2.70 v hysteresis width v hys v hys = v rel C v det 0.05 0.10 0.15 v operating current i dd v dd = 3.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det low level output current i ol v dd = 2.0v 0.20 1.00 ma out = 0.2v v dd = 3v ? 2v 840 m s detection voltage t phl ta = 25 c response time v dd = 3v ? 2v 200 m s ta = C30 c to +85 c s1f77200y1c0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 0.80 10.0 v detection voltage v det ta = 25 c 2.10 2.15 2.20 v hysteresis width v hys v hys = v rel C v det 0.05 0.10 0.15 v operating current i dd v dd = 3.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det low level output current i ol v dd = 1.5v 0.15 0.75 ma out = 0.15v v dd = 3v ? 2v 840 m s detection voltage t phl ta = 25 c response time v dd = 3v ? 2v 200 m s ta = C30 c to +85 c .com .com .com .com 4 .com u datasheet
s1f77200y series 6C16 epson s1f70000 series technical manual s1f77200y1n0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 0.80 10.0 v detection voltage v det ta = 25 c 1.85 1.90 1.95 v hysteresis width v hys v hys = v rel C v det 0.03 0.05 0.08 v operating current i dd v dd = 3.0v 2.00 5.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det low level output current i ol v dd = 1.5v 0.15 0.75 ma out = 0.15v v dd = 2v ? 1v 840 m s detection voltage t phl ta = 25 c response time v dd = 2v ? 1v 200 m s ta = C30 c to +85 c s1f77200y1b0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 0.80 10.0 v detection voltage v det ta = 25 c 1.10 1.15 1.20 v hysteresis width v hys v hys = v rel C v det 0.03 0.05 0.08 v operating current i dd v dd = 1.5v 1.50 4.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det low level output current i ol v dd = 0.8v 0.05 0.40 ma out = 0.16v v dd = 1.5v ? 0.8v 840 m s detection voltage t phl ta = 25 c response time v dd = 1.5v ? 0.8v 200 m s ta = C30 c to +85 c .com .com .com .com 4 .com u datasheet
s1f70000 series epson 6C17 technical manual s1f77200y series s1f77200y series s1f77200y1y0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 0.80 10.0 v detection voltage v det ta = 25 c 1.05 1.10 1.15 v hysteresis width v hys v hys = v rel C v det 0.03 0.05 0.08 v operating current i dd v dd = 1.5v 1.50 4.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det low level output current i ol v dd = 0.8v 0.05 0.40 ma out = 0.16v v dd = 1.5v ? 0.8v 840 m s detection voltage t phl ta = 25 c response time v dd = 1.5v ? 0.8v 200 m s ta = C30 c to +85 c s1f77200y1a0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 0.80 10.0 v detection voltage v det ta = 25 c 1.00 1.05 1.10 v hysteresis width v hys v hys = v rel C v det 0.03 0.05 0.08 v operating current i dd v dd = 1.5v 1.50 4.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det low level output current i ol v dd = 0.8v 0.05 0.40 ma out = 0.16v v dd = 1.5v ? 0.8v 840 m s detection voltage t phl ta = 25 c response time v dd = 1.5v ? 0.8v 200 m s ta = C30 c to +85 c .com .com .com .com 4 .com u datasheet
s1f77200y series 6C18 epson s1f70000 series technical manual s1f77200y1v0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 0.80 10.0 v detection voltage v det ta = 25 c 0.90 0.95 1.00 v hysteresis width v hys v hys = v rel C v det 0.03 0.05 0.08 v operating current i dd v dd = 1.5v 1.50 4.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det low level output current i ol v dd = 0.8v 0.05 0.40 ma out = 0.16v v dd = 1.5v ? 0.8v 840 m s detection voltage t phl ta = 25 c response time v dd = 1.5v ? 0.8v 200 m s ta = C30 c to +85 c s1f77220y2d0 (ta = C30 c to +85 c is assumed except where otherwise specified.) parameter symbol conditions (v ss = 0.0v) min. typ. max. unit operating voltage v dd 1.5 12.0 v detection voltage v det ta = 25 c 1.20 1.25 1.30 v hysteresis width v hys v hys = v rel C v det 0.03 0.05 0.08 v operating current i dd v dd = 3.0v 1.50 4.00 m a detection voltage d v det C300 C100 +100 ppm/ c temperature characteristics v det low level output current i ol v dd = 1.5v C0.03 C0.06 ma out = 0.64v v dd = 1.5v ? 0.8v 840 m s detection voltage t phl ta = 25 c response time v dd = 1.5v ? 0.8v 200 m s ta = C30 c to +85 c .com .com .com .com 4 .com u datasheet
s1f70000 series epson 6C19 technical manual s1f77200y series s1f77200y series examples of external connection (3pin) (2pin) (1pin) v dd v ss out s1f77210y series input voltage (+) input voltage (e) voltage detection output (3pin) (2pin) (1pin) out input voltage (+) input voltage (e) voltage detection output power supply for pull up resistor v dd v ss s1f77210y series (3pin) (2pin) (1pin) out power supply for pull down resistor input voltage (+) input voltage (e) voltage detection output v dd v ss s1f77210y series .com .com .com .com 4 .com u datasheet
s1f77200y series 6C20 epson s1f70000 series technical manual sample circuits (s1f77210y series) cr timer circuit when the s1f77210y circuit configured as shown in figure 5-14, it can be used as a cr timer circuit. figure 5-14 cr timer circuit battery backup circuit the following is an example of the supply voltage switching circuit for the battery backup supply configured featur- ing the s1f77210y series. figure 5-15 battery backup circuit v dd v dd v o v ss out r c s1f77210y v dd v cc v bat v dd v o v ss pnp transistor npn transistor enable signal s1f77210y .com .com .com .com 4 .com u datasheet
s1f70000 series epson 6C21 technical manual s1f77200y series s1f77200y series sample circuits (s1f77200y series) cr timer circuit when the s1f77200y circuit is configured as shown in figure 5-16, it can be used as a cr timer circuit. figure 5-16 cr timer circuit battery backup circuit the following is an example of the supply voltage switching circuit for the battery backup configured featuring the s1f77200y series. figure 5-17 battery backup circuit v dd v cc v bat v dd v o v ss pnp transistor npn transistor enable signal s1f77200y v dd v dd v dd v o v ss out r c s1f77200y .com .com .com .com 4 .com u datasheet
s1f77200y series 6C22 epson s1f70000 series technical manual s1f 77210y precautions short cut current on the s1f77210 (cmos output voltage detector) since the s1f77200y series employs cmos output, as an input voltage nears the detection voltage range, short cut current is flown between v dd and v ss . the short cut current is voltage sensitive, and approximately 2 ma flows at 5v level or so (our products are not check for short cut current after volume production has been started). although duration of the short cut current depends on operating conditions (such as type the circuit used and supply impedance), normally it is assumed to continue several usec to several dozens of usec. if a load with high impedance is inserted across the power supply, oscillation can be introduced by the short cut current. in order to reject this trouble, the following measures should be considered: (1) reduce the resistance value. (2) insert a capacitor. (3) replace with the s1f77200y series (it employs n-channel open drain approach). .com .com .com .com 4 .com u datasheet
7. appendix .com .com .com .com 4 .com u datasheet
s1f70000 series epson 7C1 technical manual appendix appendix absolute maximum ratings absolute maximum ratings are the maximum physical and electrical ratings of a device beyond which perfor- mance degradation or damage will occur. always check circuit conditions before using a device to avoid exceeding these ratings. typically, absolute maximum ratings include the following parameters. 1. power supply voltage steady state applied voltages, noise, reverse voltage transients and power-on-transients can degrade or damage the integrated circuit if they exceed the maximum power supply voltage rating. 2. input signal voltage input signals exceeding this rate can damage input protection circuits 3. output current generally, specifications are not set for cmos devices with small output currents. devices that provide large drive currents will have output cur- rent specifications. 4. power dissipation the maximum power dissipation of a device is limited by its construction and package type. maximum output current limits are set to prevent thermal damage. 5. operating temperature range the temperature range for normal device operation with no change in performance characteristics. 6. storage temperature range the temperature range for device storage with no degradation or damage. this specification is par- ticularly important when ics are being transported by air. 7. soldering temperature and the duration the maximum soldering temperature and the time for which the leads can be at this temperature. recommended operating conditions recommended operating conditions are the conditions under which a device functions correctly. these include power supply voltage, input conditions and output current. these conditions are sometimes listed as part of the electrical characteristics. electrical characteristics electrical characteristics specify the dc and ac characteristics of a device under the worst measure- ment conditions. power dissipation conditions to prevent damage always consider the following points when designing with power regulation ics. the following figure shows the cost and reliability of a product and is significant when designing a system. 50 100 150 ambient temperature (?c) power dissipation (w) 0 1 2 3 0.5 mm thick substrate 12.5 x 20 x 0.7 mm 3 ceramic substrate or 1.7 mm thick glass-epoxy substrate with 1 cm 2 collector surface area 12.5 x 40 x 0.7 mm 3 ceramic substrate 25 x 80 x 0.7 mm 3 ceramic substrate junction temperature cost reliability reliability cost 1. a precise thermal design is necessary to ensure adequate heat dissipation. the following figure shows the power dissipation capacity in relation to ambient temperature. .com .com .com .com 4 .com u datasheet
7C2 epson s1f70000 series technical manual appendix symbol parameter i opr2 stabilization circuit power dissipation i q quiescent current i r reverse current i swq switching transistor leakage current k i output voltage temperature gradient p d power dissipation p eff voltage multiplication efficiency r bson backup switch on resistance r l load resistance r o output impedance r on on resistance r osc oscillator network resistor r rv stabilization voltage sensing resistor r rvn reference voltage r sat stabilization output saturation resistance r swon switching transistor on resistance t a ambient temperature t ae minimum pulsewidth t ha address hold time t hd data hold time thd total harmonic distortion q jn thermal resistance t mrr memory reset recovery time symbol parameter c d drain capacitance c f8 field slew capacitance c g gate capacitance c i input capacitance c n capacitance ct crosstalk c tn temperature gradient f clk clock frequency f max maximum clock frequency f osc oscillator frequency ft field through (channel off) i bsq backup switching leakage current i ddo operating current i dds standby current i dd power supply current i ih high-level input current i il low-level input current i lki input leakage current i max maximum current i o output current i oh high-level output current i ol low-level output current i opr1 multiplier circuit power dissipation the following figure shows a thermal design model which can be used to determine heatsink capacity. 2. ensure that the regulator common pin is a sin- gle-point ground to prevent earth loops. make ground lines as thick and short as possible. use the specified bypass capacitors for inputs and outputs. if there is a switching load, use a tantalum or ceramic capacitor, as these devices have a high frequency response between the power supply and ground. junction temperature case temperature heatsink temperature ambient temperature heat source t j t c t s t a q jc q cs q sa parameter summary .com .com .com .com 4 .com u datasheet
s1f70000 series epson 7C3 technical manual appendix appendix symbol parameter v i input voltage v ih high-level input voltage v il low-level input voltage v i input voltage v o output voltage v off input offset voltage v op+ input voltage range v opmax maximum output voltage v opmin minimum output voltage v ref reference voltage v reg output voltage (regulated) v ss power supply voltage v ssn power supply voltage v sta oscillator start-up voltage v stp oscillator shut-down voltage symbol parameter t mr memory reset t opr operating temperature t pae propagation delay t phl low-level transition time t plh high-level transition time t pls propagation delay t pop propagation delay t ps propagation delay t sa address setup time t sd data setup time t sol soldering temperature and time t stg storage temperature v dd power supply voltage v det detection voltage v f forward voltage .com .com .com .com 4 .com u datasheet
7C4 epson s1f70000 series technical manual appendix mechanical data plastic dipC8pin plastic qfp5C48pin plastic sop3C8pin plastic dipC14pin plastic qfp12-48pin plastic sop4C8pin unit: mm unit: mm unit: mm unit: mm unit: mm unit: mm 9.7 max. 8 5 14 index 9.1 0.1 6.4 0.1 1.3 0.8 0.1 4.4 0.1 3.0 min. 0.46 0.1 2.54 0.25 7.62 7.62 to 9.02 0.25 +0.03 ?.01 index 14 0.1 19.6 0.4 20 0.1 25 48 0.35 0.1 24 1 2.7 0.1 2.8 1.5 0.3 0.15 0.05 0.8 14 8 17 19.7 max. 19.0 0.1 6.3 0.1 1.5 0.46 0.1 2.54 0.25 7.62 to 9.02 7.62 0.25 +0.03 ?.01 0.8 0.1 3.0 min. 4.4 0.1 7.0 0.1 9.0 0.4 25 36 7.0 0.1 9.0 0.4 13 24 index 0.18 0.1 12 1 48 37 1.7 max. 1.0 0.5 0.2 0.125 0.05 0.5 5 8 4 1 index 1.27 5.0 0.2 6.0 0.4 3.9 0.2 0.4 0.1 1.5 0.15 0.15 1.65 0.2 0.1 0.8 5 8 4 1 index 1.27 5.0 0.2 5.0 0.2 0.35 0.1 1.6 0.15 0.1 0.55 6.8 0.4 1.75 0.15 .com .com .com .com 4 .com u datasheet
s1f70000 series epson 7C5 technical manual appendix appendix plastic sop5C14pin plastic sop2-24pin plastic ssop2C16pin sot 89C3pin plastic sop2C28pin plastic ssop1C20pin unit: mm unit: mm unit: mm unit: mm unit: mm unit: mm 8 14 7 1 index 1.27 0.1 6.8 10.2 0.2 5.5 0.2 0.4 0.1 2.2 max. 0.15 0.1 0.4 8.0 0.3 2.3 10.5 max. 0.1 0.08 13 24 12 1 1.27 15.2 0.1 8.4 0.1 0.4 0.1 2.7 2.5 0.15 0.15 0.05 15.5 max. 11.8 0.3 0.2 1.0 9 16 8 1 index 4.4 0.2 1.7 max. 0.05 0.9 0.15 6.8 0.2 6.6 0.2 6.2 0.3 1.5 0.5 0.2 0 10 0.8 0.36 0.1 1.8 max. 4.5 0.1 2.5 0.1 4.25 max. 1.5 0.48 max. 12 3 1.5 0.4 0.8 min. 0.48 max. 0.53 max. 1.5 0.1 0.44 max. 0.44 max. 15 28 14 1 1.27 17.8 0.1 8.4 0.1 0.4 0.1 2.7 0.2 0.15 0.05 18.1 max. 11.8 0.3 2.5 0.15 1.0 11 20 10 1 index 0.65 6.5 0.1 4.4 0.1 1.2 max. 0.1 1 0.15 6.4 0.3 0.5 0.2 0.22 0.1 1.05 0 10 .com .com .com .com 4 .com u datasheet
7C6 epson s1f70000 series technical manual appendix taping information the emboss carrier taping standard is shown in the following table and figure. this standard conforms to dimension code dimensions/angles (mm/ ) a 5.0 b 4.6 d 1.5 +0.1, C0.05 e 1.50 0.1 f 5.65 0.05 p1 8.0 0.1 p0 4.0 0.1 dimension code dimensions/angles (mm/ ) p2 2.0 0.05 t 0.3 t2 2.3 w 12.0 0.2 w1 9.5 q 30 max. there are no joints in either the cover or carrier tapes. less than 0.2% of the total device count is comprised of non-sequential blanks. there are no sequential blanks. this does not apply to the tape leader and trailer. note the tape thickness is 0.1 mm max. the eiaj rci00b electronic parts taping specification. each tape holds 1,000 devices.
device cavity t2 t d feeder hole cross section with device position travel direction e f b qq a w p1 p0 p2 emboss carrier taping standard (sot89-3pin) .com .com .com .com 4 .com u datasheet
s1f70000 series epson 7C7 technical manual appendix appendix dimension code dimensions (mm) a 178 2.0 b 80 1.0 c 13.0 0.5 d 21.0 1.0 e 2.0 0.5 w 14.0 (see note.) w1 1.5 0.1 w2 17 (see note.) r 1.0 reel specifications the reel specifications are shown in the following table and figure. the reel is made of paperboard. note w and w2 are measured at the reel core. device positioning small molded power ic devices are positioned as shown in the following figure. 120? 120? e c d r w w 1 w 2 ba t1 t2 .com .com .com .com 4 .com u datasheet
7C8 epson s1f70000 series technical manual appendix taping information the emboss carrier taping standard is shown in the following table and figure. this standard conforms to the eiaj rci009b electronic parts taping specification. each tape holds 2,000 devices. dimension code dimensions/angles (mm/ ) p2 2.0 0.05 t 0.3 0.05 t2 2.5 w 12.0 0.3 w1 9.5 q 15 max. blanks. this does not apply to the tape leader and trailer. dimension code dimensions/angles (mm/ ) a 6.7 b 5.4 d 1.55 +0.05, C0 d1 1.55 0.05 e 1.75 0.1 f 5.5 0.1 p1 8.0 0.1 p0 4.0 0.1 note the tape thickness is 0.1 mm max. there are no joints in either the cover or carrier tapes. less than 0.2% of the total device count is comprised of non-sequential blanks. there are no sequential w1 t2 index mark te2 qq p1 d1 travel direction w f e p0 p1 d t a b emboss carrier taping standard (sop3-8pin ) .com .com .com .com 4 .com u datasheet
s1f70000 series epson 7C9 technical manual appendix appendix reel specifications the reel specifications are shown in the following table and figure. the reel is made of paperboard. dimension code dimensions (mm) a 330 2.0 b 80 1.0 c 13.0 0.5 d 21.0 0.5 e 2.0 0.5 w 15.4 1.0 (see note.) w1 2.0 0.5 w2 23.4 (see note.) r 1.0 note w and w2 are measured at the reel core. device positioning type b products are positioned so that the index mark is on the sprocket hole side of the tape, as shown in the following figure. 120? 120? e c d r w w1 w2 ba index mark travel direction .com .com .com .com 4 .com u datasheet
7C10 epson s1f70000 series technical manual appendix type f product are positioned so that the index mark is on the opposite side to the sprocket holes, as shown in the following figure. index mark travel direction .com .com .com .com 4 .com u datasheet
s1f70000 series epson 7C11 technical manual appendix appendix taping information the emboss carrier taping standard is shown in the following table and figure. this standard conforms to dimension code dimensions (mm/ ) p2 2.0 0.1 t 0.3 0.05 t2 3.0 w 16.0 0.3 w1 13.5 blanks. this does not apply to the tape leader and trailer. dimension code dimensions (mm/ ) a 8.4 b 10.6 d0 1.55 0.05 d1 1.55 0.05 e 1.75 0.1 f 7.5 0.1 p1 12 0.1 p0 4.0 0.1 note the tape thickness is 0.1 mm max. there are no joints in either the cover or carrier tapes. less than 0.1% of the total device count is comprised of non-sequential blanks. there are no sequential the eiaj rci009b electronic parts taping specification. each tape holds 2,000 devices. dia d0 dia d1 p0 w1 t2 p2 e t w p1 w f a b emboss carrier taping standard (sop5-14pin ) .com .com .com .com 4 .com u datasheet
7C12 epson s1f70000 series technical manual appendix reel specifications the reel specifications are shown in the following table and figure. the reel is made of paperboard. note w and w2 are measured at the reel core. device positioning type b products are positioned so that the index mark is on the sprocket hole side of the tape, as shown in the following figure. dimension code dimensions (mm) a 330 2.0 b 80 1.0 c 13.0 0.5 d 21.0 1.0 e 2.0 0.5 w 14.0 1.5 (see note.) w1 2.0 0.5 w2 20.5 max (see note.) r 1.0 120? 120? e d r w w1 w2 b c a index mark travel direction .com .com .com .com 4 .com u datasheet
s1f70000 series epson 7C13 technical manual appendix appendix type f products are positioned so that the index mark is on the opposite side to the sprocket holes, as shown in the following figure. index mark travel direction .com .com .com .com 4 .com u datasheet
7C14 epson s1f70000 series technical manual appendix taping information the emboss carrier taping standard is shown in the following table and figure. this standard conforms to dimension code dimensions (mm) p0 4.0 0.1 p2 2.0 0.1 t 0.3 0.05 t2 3.0 0.1 w 24 0.2 w1 21.5 typ. trailer. the tape tension should be approximately 10 n (1 kgf). a label indicates the part name, quantity and lot number. dimension code dimensions (mm) a 12.4 b 15.6 d0 1.55 +0.1, C0 d1 2.0 +0.1, C0 e 1.75 0.1 f 11.5 0.1 p1 16 0.1 note the tape thickness is 0.1 mm max. there are no joints in either the cover or carrier tapes. less than 0.2% of the total device count is comprised of non-sequential blanks. there are no sequential blanks. this does not apply to the tape leader and the eiaj rci009b electronic parts taping specification. each tape holds 1,000 devices. dia d0 dia d1 p0 w1 t2 p2 e t w p1 w f a b emboss carrier taping standard (sop2-24pin ) .com .com .com .com 4 .com u datasheet
s1f70000 series epson 7C15 technical manual appendix appendix tape configuration the tape configuration is shown in the following figure. blank sections are provided as a leader and trailer, with 1,000 sop2 packages fitted into the com- ponent mounting section between them. at the begin- ning of the leader section there is an extra section of tape which contains the cover tape only. travel direction base embossed carrier lead (open) > 40mm trailer (open) > 40mm cover tape only finish start .com .com .com .com 4 .com u datasheet
7C16 epson s1f70000 series technical manual appendix reel specifications the reel specifications are shown in the following table and figure. the reel is made of conductive pvc. note w and w2 are measured at the reel core. device positioning type b products are positioned so that the index mark is on the sprocket hole side of the tape, as shown in the following figure. dimension code dimensions (mm) a 330 2.0 b 80 1.0 c 13.0 0.5 d 21.0 1.0 e 2.0 0.5 w 24.4 +2, C0 (see note.) w1 2.0 0.5 w2 31.4 max. (see note.) r 1.0 120? 120? e d r w w1 w2 b c a index mark travel direction .com .com .com .com 4 .com u datasheet
s1f70000 series epson 7C17 technical manual appendix appendix type f products are positioned so that the index mark is on the opposite side to the sprocket holes, as shown in the following figure. index mark travel direction .com .com .com .com 4 .com u datasheet
america epson electronics america, inc. headquarters 150 river oaks parkway san jose, ca 95134, u.s.a. phone : +1-408-922-0200 fax : +1-408-922-0238 sales offices west 1960 e. grand avenue el segundo, ca 90245, u.s.a. phone : +1-310-955-5300 fax : +1-310-955-5400 central 101 virginia street, suite 290 crystal lake, il 60014, u.s.a. phone : +1-815-455-7630 fax : +1-815-455-7633 northeast 301 edgewater place, suite 120 wakefield, ma 01880, u.s.a. phone : +1-781-246-3600 fax : +1-781-246-5443 southeast 3010 royal blvd. south, suite 170 alpharetta, ga 30005, u.s.a. phone : +1-877-eea-0020 fax : +1-770-777-2637 europe epson europe electronics gmbh headquarters riesstrasse 15 80992 munich, germany phone : +49- (0) 89-14005-0 fax : +49- (0) 89-14005-110 sales office altstadtstrasse 176 51379 leverkusen, germany phone : +49- (0) 2171-5045-0 fax : +49- (0) 2171-5045-10 uk branch office unit 2.4, doncastle house, doncastle road bracknell, berkshire rg12 8pe, england phone : +44- (0) 1344-381700 fax : +44- (0) 1344-381701 french branch office 1 avenue de l atlantique, lp 915 les conquerants z.a. de courtaboeuf 2, f-91976 les ulis cedex, france phone : +33- (0) 1-64862350 fax : +33- (0) 1-64862355 barcelona branch office barcelona design center edificio testa, avda. alcalde barrils num. 64-68 e-08190 sant cugat del valls, spain phone : +34-93-544-2490 fax: +34-93-544-2491 asia epson (china) co., ltd. 23f, beijing silver tower 2# north rd dongsanhuan chaoyang district, beijing, china phone : 64106655 fax : 64107319 shanghai branch 4f, bldg., 27, no. 69, gui jing road caohejing, shanghai, china phone : 21-6485-5552 fax : 21-6485-0775 epson hong kong ltd. 20/f., harbour centre, 25 harbour road wanchai, hong kong phone : +852-2585-4600 fax : +852-2827-4346 telex : 65542 epsco hx epson taiwan technology & trading ltd. 10f, no. 287, nanking east road, sec. 3 taipei phone : 02-2717-7360 fax : 02-2712-9164 telex : 24444 epsontb hsinchu office 13f-3, no.295, kuang-fu road, sec. 2 hsinchu 300 phone : 03-573-9900 fax : 03-573-9169 epson singapore pte., ltd. no. 1 temasek avenue, #36-00 millenia tower, singapore 039192 phone : +65-337-7911 fax : +65-334-2716 seiko epson corporation korea office 50f, kli 63 bldg., 60 yoido-dong youngdeungpo-ku, seoul, 150-763, korea phone : 02-784-6027 fax : 02-767-3677 seiko epson corporation electronic devices marketing division electronic device marketing department ic marketing & engineering group 421-8, hino, hino-shi, tokyo 191-8501, japan phone: +81-(0)42-587-5816 fax: +81-(0)42-587-5624 ed international marketing department europe & u.s.a. 421-8, hino, hino-shi, tokyo 191-8501, japan phone: +81-(0)42-587-5812 fax: +81-(0)42-587-5564 ed international marketing department asia 421-8, hino, hino-shi, tokyo 191-8501, japan phone: +81-(0)42-587-5814 fax: +81-(0)42-587-5110 international sales operations .com .com .com .com 4 .com u datasheet
notice no part of this material may be reproduced or duplicated in any from or by any means without the written permission of seiko epson. seiko epson reserves the right to make changes to this material without notics. seiko epson does not assume any liability of any kind arising out of any inaccuracies contained in this material or due to its application or use in any product or circuit and, further, there is no repersesnation that this material is applicable to products requiring high level reliability, such as, medical products. moreover, no license to any intellectual property rights is granted by implication or otherwise, and there is no representation or warranty that anything made in accordance with this material will be free from any patent or copyright infringement of a third party. this material or portions thereof may contain technology or the subject relating to strategic products under the control of the foreign exchange and foreign trade low of japan and may require an export licenes from the ministry of international trade and industry or other approval from another government agency. hd44103 is a registered trademark of hitachi, ltd. all other product names mentioned herein are trademarks and/or registered trademarks of their respective companies. ?seiko epson corporation 2001, all rights reserved. in pursuit of ?aving?technology , epson electronic devices. our lineup of semiconductors, liquid crystal displays and quartz devices assists in creating the products of our customers?dreams. epson is energy savings. 4.5mm .com .com .com .com 4 .com u datasheet
mf302 - 11 technical manual s1f70000 series technical manual ieee1394 controller s1r77801f00a technical manual s1f70000 series epson electronic devices website electronic devices marketing division first issue november,1990 u revised july,2001 in japan h b 4.5mm technical manual power supply ic s1f70000 series http://www.epson.co.jp/device/ this manual was made with recycle paper, and printed using soy-based inks. .com .com .com 4 .com u datasheet

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