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product structure silicon monolithic integrated circuit this product is not designed for pr otection against radioactive rays . 1/13 datashee t tsz02201-0r7r0g300010-1-2 ? 2013 rohm co., ltd. all rights reserved. 15.nov.2013 rev.007 tsz22111 ? 14 ? 001 www.rohm.com voltage detector ic series counter timer built-in cmos voltage detector ic bd45xxx series bd46xxx series general description rohms bd45xxx and bd46xxx series are highly accurate, low current consumption voltage detector ics. because the counter timer delay circuit is built into these series, an external capacitor for the delay time setting is unnecessary. the lineup was established with low output types (nch open drain and cmos output) and detection voltages range from 2.3v to 4.8v in increments of 0.1v, so that the series may be selected according the application at hand. features ? counter timer built-in ? no delay time setting ex ternal capacitor required ? ultra-low current consumption ? two output types (nch open drain and cmos output) ? package ssop5 is similar to sot-23-5 (jedec) key specifications ? detection voltage: 2.3v to 4.8v (typ.) 0.1v steps ? high accuracy detection voltage: 1.0% ? ultra-low current consumption: 0.85a (typ.) ? operating temperature range: -40c to +105c ? three internal, fixed delay time: 50ms 100ms 200ms package ssop5 2.90mm x 2.80mm x 1.25mm applications circuits using microcontrollers or logic circuits that require a reset. typical application circuit connection diagram pin descriptions pin no. symbol function 1 er manual reset 2 sub substrate * 3 gnd gnd 4 v out reset output 5 v dd power supply voltage *connect the substrate to gnd. v dd1 v dd2 gnd bd45xxx c l noise-filtering capacitor r l r st micro controller open drain output type bd45xxx series cmos output type bd46xxx series c l noise-filtering capacitor v dd1 gnd bd46xxx r st micro controller ssop5 top view er sub gnd v out v dd lot. no marking downloaded from: http:///
datasheet datasheet 2/13 bd45xxx series bd46xxx series tsz02201-0r7r0g300010-1-2 ? 2013 rohm co., ltd. all rights reserved. 15.nov.2013 rev.007 www.rohm.com tsz22111 ? 15 ? 001 ordering information lineup table 1. open drain output type counter timer delay time settings 50ms 100ms 200ms detection voltage marking part number marking part number marking part number 4.8v t0 bd45485 ts bd45481 uj bd45482 4.7v t1 bd45475 tt bd45471 uk bd45472 4.6v t2 bd45465 tu bd45461 ul bd45462 4.5v t3 bd45455 tv bd45451 um bd45452 4.4v t4 bd45445 tw bd45441 un bd45442 4.3v t5 bd45435 tx bd45431 up bd45432 4.2v t6 bd45425 ty bd45421 uq bd45422 4.1v t7 bd45415 tz bd45411 ur bd45412 4.0v t8 bd45405 u0 bd45401 us bd45402 3.9v t9 bd45395 u1 bd45391 ut bd45392 3.8v ta bd45385 u2 bd45381 uu bd45382 3.7v tb bd45375 u3 bd45371 uv bd45372 3.6v tc bd45365 u4 bd45361 uw bd45362 3.5v td bd45355 u5 bd45351 ux bd45352 3.4v te bd45345 u6 bd45341 uy bd45342 3.3v tf bd45335 u7 bd45331 uz bd45332 3.2v tg bd45325 u8 bd45321 v0 bd45322 3.1v th bd45315 u9 bd45311 v1 bd45312 3.0v tj bd45305 ua bd45301 v2 bd45302 2.9v tk bd45295 ub bd45291 v3 bd45292 2.8v tl bd45285 uc bd45281 v4 bd45282 2.7v tm bd45275 ud bd45271 v5 bd45272 2.6v tn bd45265 ue bd45261 v6 bd45262 2.5v tp bd45255 uf bd45251 v7 bd45252 2.4v tq bd45245 ug bd45241 v8 bd45242 2.3v tr bd45235 uh bd45231 v9 bd45232 direction of feed reel ? order quantity needs to be multiple of the minimum quantity. embossed carrier tape tapequantity direction of feed the direction is the 1pin of product is at the upper right when you hold reel on the left hand and you pull out the tape on the right hand 3000pcs tr () 1pin (unit : mm) ssop5 2.9 0.2 0.13 4 + 6 4 1.6 2.8 0.2 1.1 0.05 0.05 0.05 + 0.2 0.1 + 0.05 0.03 0.42 + 0.05 0.04 0.95 5 4 12 3 1.25max. 0.2min. 0.1 s s v v i i : i : v i i g : i iii : v : : 8 : 8v : : downloaded from: http:///
datasheet datasheet 3/13 bd45xxx series bd46xxx series tsz02201-0r7r0g300010-1-2 ? 2013 rohm co., ltd. all rights reserved. 15.nov.2013 rev.007 www.rohm.com tsz22111 ? 15 ? 001 lineup - continued table 2. cmos output type counter timer delay time settings 50ms 100ms 200ms detection voltage marking part number marking part number marking part number 4.8v va bd46485 w2 bd46481 wu bd46482 4.7v vb bd46475 w3 bd46471 wv bd46472 4.6v vc bd46465 w4 bd46461 ww bd46462 4.5v vd bd46455 w5 bd46451 wx bd46452 4.4v ve bd46445 w6 bd46441 wy bd46442 4.3v vf bd46435 w7 bd46431 wz bd46432 4.2v vg bd46425 w8 bd46421 x0 bd46422 4.1v vh bd46415 w9 bd46411 x1 bd46412 4.0v vj bd46405 wa bd46401 x2 bd46402 3.9v vk bd46395 wb bd46391 x3 bd46392 3.8v vl bd46385 wc bd46381 x4 bd46382 3.7v vm bd46375 wd bd46371 x5 bd46372 3.6v vn bd46365 we bd46361 x6 bd46362 3.5v vp bd46355 wf bd46351 x7 bd46352 3.4v vq bd46345 wg bd46341 x8 bd46342 3.3v vr bd46335 wh bd46331 x9 bd46332 3.2v vs bd46325 wj bd46321 xa bd46322 3.1v vt bd46315 wk bd46311 xb bd46312 3.0v vu bd46305 wl bd46301 xc bd46302 2.9v vv bd46295 wm bd46291 xd bd46292 2.8v vw bd46285 wn bd46281 xe bd46282 2.7v vx bd46275 wp bd46271 xf bd46272 2.6v vy bd46265 wq bd46261 xg bd46262 2.5v vz bd46255 wr bd46251 xh bd46252 2.4v w0 bd46245 ws bd46241 xj bd46242 2.3v w1 bd46235 wt bd46231 xk bd46232 downloaded from: http:///
datasheet datasheet 4/13 bd45xxx series bd46xxx series tsz02201-0r7r0g300010-1-2 ? 2013 rohm co., ltd. all rights reserved. 15.nov.2013 rev.007 www.rohm.com tsz22111 ? 15 ? 001 z absolute maximum ratings parameter symbol limits unit power supply voltage v dd -gnd -0.3 to +10 v output voltage nch open drain output vout gnd-0.3 to +10 v cmos output gnd-0.3 to v dd +0.3 output current i o 60 ma er pin voltage vct gnd-0.3 to v dd +0.3 v power dissipation *1 *2 pd 540 mw operating temperature topr -40 to +105 c ambient storage temperature tstg -55 to +125 c *1 reduced by 5.4mw/c when used over 25c. *2 when mounted on rohm standard circuit board (70mm70mm1.6mm, glass epoxy board). electrical characteristics (unless othe rwise specified ta=-40 to 105c) parameter symbol condition limit unit min. typ. max. detection voltage v det v dd =h ? l, r l =470k ? *1 v det (t) 0.99 v det (t) v det (t) 1.01 v vdet=2.5v ta=+25c 2.475 2.5 2.525 ta=-40c to 85c 2.418 - 2.584 ta=85c to 105c 2.404 - 2.597 vdet=3.0v ta=+25c 2.970 3.0 3.030 ta=-40c to 85c 2.901 - 3.100 ta=85c to 105c 2.885 - 3.117 vdet=3.3v ta=+25c 3.267 3.3 3.333 ta=-40c to 85c 3.191 - 3.410 ta=85c to 105c 3.173 - 3.428 vdet=4.2v ta=+25c 4.158 4.2 4.242 ta=-40c to 85c 4.061 - 4.341 ta=85c to 105c 4.039 - 4.364 vdet=4.8v ta=+25c 4.752 4.8 4.848 ta=-40c to 85c 4.641 - 4.961 ta=85c to 105c 4.616 - 4.987 detection voltage temperature coefficient v det / ? t -40c to +105c - 100 360 ppm/c hysteresis voltage ? v det v dd l ? h ? l, r l =470k ? v det (t) 0.03 v det (t) 0.05 v det (t) 0.08 v high output delay time t plh c l =100pf, r l =100k ? *1, *2, *3 bd45 xx 5, bd46 xx 5 45 50 55 ms bd45 xx 1, bd46 xx 1 90 100 110 bd45 xx 2, bd46 xx 2 180 200 220 circuit current when on i dd 1 v dd =v det -0.2v, v er =0v v det =2.3v to 3.1v *1 - 0.70 2.10 a v dd =v det -0.2v, v er =0v v det =2.3v to 3.1v - 0.70 2.85 v dd =v det -0.2v, v er =0v v det =3.2v to 4.2v *1 - 0.75 2.25 v dd =v det -0.2v, v er =0v v det =3.2v to 4.2v - 0.75 3.00 v dd =v det -0.2v, v er =0v v det =4.3v to 4.8v *1 - 0.80 2.40 v dd =v det -0.2v, v er =0v v det =4.3v to 4.8v - 0.80 3.15 circuit current when off i dd 2 v dd =v det +0.2v, v er =0v v det =2.3v to 3.1v *1 - 0.75 2.25 a v dd =v det +0.2v, v er =0v v det =2.3v to 3.1v - 0.75 4.28 v dd =v det +0.2v, v er =0v v det =3.2v to 4.2v *1 - 0.80 2.40 v dd =v det +0.2v, v er =0v v det =3.2v to 4.2v - 0.80 4.50 v dd =v det +0.2v, v er =0v v det =4.3v to 4.8v *1 - 0.85 2.55 v dd =v det +0.2v, v er =0v v det =4.3v to 4.8v - 0.85 4.73 v det (t):standard detection voltage (2.3v to 4.8v, 0.1v step) r l :pull-up resistor to be connected between v out and power supply. c l :capacitor to be connected between v out and gnd. *1 guarantee is ta=25c. *2 t plh :v dd =(v det (t)-0.5v) ? (v det (t)+0.5v) *3 t plh :v dd =please set the rise up time between v dd =0 ? v det to more than 100s. attention: please connect the gnd when you dont use er downloaded from: http:///
datasheet datasheet 5/13 bd45xxx series bd46xxx series tsz02201-0r7r0g300010-1-2 ? 2013 rohm co., ltd. all rights reserved. 15.nov.2013 rev.007 www.rohm.com tsz22111 ? 15 ? 001 electrical characteristics (unless otherwise specified ta=-40 to 105c) - continued parameter symbol condition limit unit min. typ. max. operating voltage range v opl v ol 0.4v, r l =470k ? , ta=25 to 105c 0.95 - - v v ol 0.4v, r l =470k ? , ta=-40 to 25c 1.20 - - high output voltage (pch) v oh v dd =4.8v, i source = 1.0 ma, v det (2.3v to 4.2v) vdd-0.5 - - v v dd =6.0v, i source = 1.2 ma, v det (4.3v to 4.8v) vdd-0.5 - - lowoutput voltage (nch) v ol v dd =1.2v, i sink = 0.45 ma - - 0.3 v v dd =2.4v, i sink = 1.3 ma, v det (2.7v to 4.8v) - - 0.3 leak current when off i lea k v dd =v ds =10v *1 - - 0.1 a er pin h voltage v eh *1 2.0 - - v er pin l voltage v el *1 - - 0.8 v er pin input current i el - 1 10 a v det (t):standard detection voltage (2.3v to 4.8v, 0.1v step) r l :pull-up resistor to be connected between v out and power supply. c l :capacitor to be connected between v out and gnd. *1 guarantee is ta=25c. attention: please connect the gnd when you dont use er downloaded from: http:///
datasheet datasheet 6/13 bd45xxx series bd46xxx series tsz02201-0r7r0g300010-1-2 ? 2013 rohm co., ltd. all rights reserved. 15.nov.2013 rev.007 www.rohm.com tsz22111 ? 15 ? 001 block diagrams fig.1 bd45xxx series fig.2 bd46xxx series vref v out v dd gnd oscillation circuit counter timer e r v out vref v dd gnd oscillation circuit counter timer e r downloaded from: http:///
datasheet datasheet 7/13 bd45xxx series bd46xxx series tsz02201-0r7r0g300010-1-2 ? 2013 rohm co., ltd. all rights reserved. 15.nov.2013 rev.007 www.rohm.com tsz22111 ? 15 ? 001 typical performance curves fig.3 circuit current 0.0 0.5 1.0 1.5 2.0 01 23 456 78 910 v dd supply voltage v dd [v] circuit current i dd [ a] bd45281g 0 5 10 15 20 0.0 0.5 1.0 1.5 2.0 2.5 drain-source voltage v ds [v] "low" output current i ol [ma] v dd =1.2v bd45281g v dd =2.4v fig.4 low output current 0 5 10 15 20 0123456 drain-source voltage v ds [v] "high" output current i oh [ma] bd46281g v dd =6.0v v dd =4.8v fig.5 high output current fig.6 i/o characteristics 0 1 2 3 4 5 6 7 00.5 11.522.5 33.544.5 55.5 v dd supply voltage v dd [v] output voltage v out [v] bd45421g ta=25 ta=25 bd45281 bd46281 bd45281 bd46281 bd45281 bd46281 bd46281 downloaded from: http:///
datasheet datasheet 8/13 bd45xxx series bd46xxx series tsz02201-0r7r0g300010-1-2 ? 2013 rohm co., ltd. all rights reserved. 15.nov.2013 rev.007 www.rohm.com tsz22111 ? 15 ? 001 typical performance curves C continued 0 5 10 15 20 01234 5678910 er voltage ver[v] output voltage v out [v] bd46281g fig.7 er terminal threshold voltage fig.10 circuit current when on (v det -0.2v) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 -40-200 20406080100 tem perature ta[ ] circuit current when on i dd1 [ a] bd 45421g fig.8 er terminal input current 0 5 10 15 20 012345678910 er voltage v er [v] er bias current i er [ a] bd 45421g bd45281 bd46281 bd45421 bd46421 bd45421 bd46421 fig.9 detection voltage release voltage 3.0 3.4 3.8 4.2 4.6 5.0 5.4 5.8 -40 0 40 80 temperature ta[ ] detection voltage v det [v] low to hig h(v det + v det ) high to low(v det ) bd 45421g bd45421 bd46421 downloaded from: http:///
datasheet datasheet 9/13 bd45xxx series bd46xxx series tsz02201-0r7r0g300010-1-2 ? 2013 rohm co., ltd. all rights reserved. 15.nov.2013 rev.007 www.rohm.com tsz22111 ? 15 ? 001 typical performance curves C continued 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 - 40 -20 0 20 40 60 80 100 temperature ta[ ] circuit current when off i dd2 [ a] bd45421g fig.11 circuit current when off 0 10 20 30 40 50 -60 -40 -20 0 20 40 60 80 100 120 tem perature ta[ ] "low" delay time t phl [ sec] bd 45281g t ph l fig.14 output delay time high ? low low delay time : t plh [s] bd45421 bd46421 bd45281 bd46281 fig.13 output delay time low ? high 0 50 100 150 200 250 -60 -40 -20 0 20 40 60 80 100 120 tem perature ta[ ] "high" delay time t plh [msec] bd 4528 g bd 45282g bd 45281g bd 45285g high delay time : t plh [ms] bd45282 bd46282 bd45285 bd46285 bd45281 bd46281 fig.12 operating limit voltage 0.0 0.5 1. 0 1. 5 -40-200 20 40 6080100 tem pera ture ta[ ] minimum operating voltage: v op l [v] bd45421 bd46421 downloaded from: http:///
datasheet datasheet 10/13 bd45xxx series bd46xxx series tsz02201-0r7r0g300010-1-2 ? 2013 rohm co., ltd. all rights reserved. 15.nov.2013 rev.007 www.rohm.com tsz22111 ? 15 ? 001 application information explanation of operation for both the open drain type (fig.15) and the cmos output type (fig.16), the detection and release voltages are used as threshold voltages. when the voltage applied to the v dd pins reaches the applicable threshold voltage, the v out terminal voltage switches from either high to low or from low to high. because the bd45xxx series uses an open drain output type, it is necessary to connect either a pull-up resistor to v dd or another power supply if needed [the output high voltage (v out ) in this case becomes v dd or the voltage of the other power supply]. fig.15 (bd45xxx type internal block diagram) fig.16 (bd46xxx type internal block diagram) reference data examples of leading (t plh ) and falling (t phl ) output part number t plh [ms] t phl [s] bd45275g 50 18 bd46275g 50 18 v dd =2.2v ? 3.2v v dd =3.2v ? 2.2v *this data is for reference only. the figures will vary with the application, so pl ease confirm actual operating conditions before use. timing waveform example: the following shows the relationship between the input voltages v dd , the output voltage v out and er terminal when the input power supply voltage v dd is made to sweep up and sweep down (the circuits are those in fig. 12 and 13). 1 when the power supply is turned on, the output is unstable from after over the operating limit voltage (v opl ) until t phl . therefore it is possible that the reset signal is not outputted when the rise time of v dd is faster than t phl . 2 when v dd is greater than v opl but less than the reset release voltage (v det + ? v det ), the output voltages will switch to low. 3 if v dd exceeds the reset release voltage (v det + ? v det ), the counter timer start and v out switches from l to h. 4 when more than the high level voltage is supplied to the er terminal, v out comes to l after t plh delay time. therefore, a time when er terminal is h is necessary for 100sec or more. 5 when the er terminal switches to low, the counter timer starts to operate, a delay of t plh occurs, and v out switches from l to h. 6 if v dd drops below the detection voltage (v det ) when the power supply is powered down or when there is a power supply fluctuation, v out switches to l (with a delay of t phl ). 7 the potential difference between the detection voltage and the release voltage is known as the hysteresis width ( ? v det ). the system is designed such that the output does not toggle with power supply fluctuations within this hysteresis width, preventing malfunctions due to noise. these time changes by the application and use it, please verify and confirm using practical applications. vref r1 r2 r3 v dd gnd oscillation circuit counter timer q1 v out v dd reset er q2 q1 vref r1 r2 r3 v dd gnd oscillation circuit counter timer v out reset er fig.17 timing waveform v dd v det + v det v det v opl 0v t phl v out t plh t phl t plh v ol v oh v dd t plh t phl v eh er downloaded from: http:///
datasheet datasheet 11/13 bd45xxx series bd46xxx series tsz02201-0r7r0g300010-1-2 ? 2013 rohm co., ltd. all rights reserved. 15.nov.2013 rev.007 www.rohm.com tsz22111 ? 15 ? 001 circuit applications 1) examples of common power supply detection reset circuits. application examples of bd45xxx series (open drain output type) and bd46xxx series (cmos output type) are shown below. case1: power supply of the microcontroller (v dd2 ) differs from the power supply of the reset detection (v dd1 ). use an open drain output type (bd45xxx) with a load resistance r l as shown fig.18. case2: power supply of the microcontroller (v dd1 ) is same as the power supply of the reset detection (v dd1 ). use a cmos output type (bd46xxx) device or an open drain output type (bd45xxx) device with a pull up resistor between the output and v dd1 . when a capacitance c l for noise filtering is connected to the v out pin (the reset signal input terminal of the microcontroller), please take into account the waveform of the rise and fall of the output voltage (v out ). 2) the following is an example of a circuit application in which an or connection between two types of detection voltage resets the microcontroller. fig. 20 to reset the microcontroller when many independent power supplies are used in the system, or connect an open drain output type (bd45xxx series) to the microcontrollers input with pull-up resistor to the supply voltage of the microcontroller (v dd3 ) as shown in fig. 20. by pulling-up to v dd3 , output high voltage of micro-controller power supply is possible. fig.18 open drain output type fig.19 cmos output type v dd1 v dd2 gnd bd45xxx c l noise-filtering capacitor r l r st micro controller c l noise-filtering capacitor v dd1 gnd bd46xxx r st micro controller v dd2 v dd1 v dd3 gnd r st micro controlle r r l bd45xxx bd45xxx downloaded from: http:///
datasheet datasheet 12/13 bd45xxx series bd46xxx series tsz02201-0r7r0g300010-1-2 ? 2013 rohm co., ltd. all rights reserved. 15.nov.2013 rev.007 www.rohm.com tsz22111 ? 15 ? 001 3) examples of the power supply with resistor dividers. in applications wherein the power supply voltage of an ic comes from a resistor divider circuit, an in-rush current will flow into the circuit when the output level switches from high to low or vice versa. in-rush current is a sudden surge of curren t that flows from the power supply (vdd) to ground (gnd) as t he output logic changes its state. this current flow may cause malfunction in the systems operation such as output oscillations, etc. fig. 21 when an in-rush current (i1) flows into the circuit (refer to fig. 21) at the time when output switches from low to high, a voltage drop of i1r2 (input resistor) will occur in the ci rcuit causing the vdd supply voltage to decrease. when the vdd voltage drops below the detection voltage, the output will switch from high to low. while the output voltage is at low condition, in-rush current will stop flowing and the voltage drop will be reduced. as a result, the output voltage will switche s again from low to high which causes an in-rush current and a voltage drop. this operation repeats and will result to oscillation. v out r2 v dd bd45xxx bd46xxx gnd r1 i1 v1 cin c l i dd v dd v det 0 in-rush current fig. 22 current consumption vs. power supply voltage downloaded from: http:///
datasheet datasheet 13/13 bd45xxx series bd46xxx series tsz02201-0r7r0g300010-1-2 ? 2013 rohm co., ltd. all rights reserved. 15.nov.2013 rev.007 www.rohm.com tsz22111 ? 15 ? 001 operational notes 1) absolute maximum ratings operating the ic over the absolute maximum ratings may damage the ic. the damage can either be a short circuit between pins or an open circuit between pins. therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the ic is operated over the absolute maximum ratings. 2) ground voltage the voltage of the ground pin must be the lowest voltage of all pins of the ic at all operating conditions. ensure that no pins are at a voltage below the ground pin at any time, even during transient condition. 3) recommended operating conditions these conditions represent a range within which the ex pected characteristics of the ic can be approximately obtained. the electrical characteristics are guar anteed under the conditions of each parameter. 4) bypass capacitor for noise rejection to help reject noise, put a 1f capacitor between v dd pin and gnd and 1000pf capacitor between v out pin and gnd. be careful when using extremely big capacitor as transient response will be affected. 5) short between pins and mounting errors be careful when mounting the ic on printed circuit boards. the ic may be damaged if it is mounted in a wrong orientation or if pins are shorted together. short circuit may be caused by conductive particles caught between the pins. 6) operation under strong electromagnetic field operating the ic in the presence of a strong electromagnetic field may cause the ic to malfunction. 7) the v dd line impedance might cause oscillation because of the detection current. 8) a v dd to gnd capacitor (as close connection as possible) should be used in high v dd line impedance condition. 9) lower than the mininum input voltage puts the v out in high impedance state, and it must be v dd in pull up (v dd ) condition. 10) this ic has extremely high impedance terminals. small leak current due to the uncleanness of pcb surface might cause unexpected operations. application values in these conditions should be selected carefully. if the leakage of about 1m ? is assumed between the er terminal and the gnd terminal, 100k ? connection between the er terminal and the v dd terminal would be recommended. if the leakage is assumed between the v out terminal and the gnd terminal, the pull-up resistor should be less than 1/10 of the assumed leak resistance. 11) external parameters the recommended parameter range for r l is 50k ? to 1m ? . there are many factors (board layout, etc) that can affect characteristics. please verify and confirm using practical applications. 12) power on reset operation please note that the power on reset output varies with the v dd rise time. please verify the behavior in the actual operation. 13) testing on application boards when testing the ic on an application board, connecting a capacitor directly to a low-impedance output pin may subject the ic to stress. always discharge capacitors completely after each process or step. the ics power supply should always be turned off completely before connecting or removing it from the test setup during the inspection process. to prevent damage from static discharge, ground the ic durin g assembly and use similar precautions during transport and storage. 14) rush current when power is first supplied to the ic, rush current may flow instantaneously. it is possible that the charge current t o the parasitic capacitance of internal photo diode or the internal logic may be unstable. therefore, give special consideration to power coupling capacitance, power wi ring, width of gnd wiring, and routing of connections. downloaded from: http:///
datasheet d a t a s h e e t notice - ge rev.002 ? 2014 rohm co., ltd. all rights reserved. notice precaution on using rohm products 1. our products are designed and manufac tured for application in ordinary elec tronic equipments (such as av equipment, oa equipment, telecommunication equipment, home electroni c appliances, amusement equipment, etc.). if you intend to use our products in devices requiring ex tremely high reliability (such as medical equipment (note 1) , transport equipment, traffic equipment, aircraft/spacecra ft, nuclear power controllers, fuel c ontrollers, car equipment including car accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property (specific applications), please consult with the rohm sale s representative in advance. unless otherwise agreed in writing by rohm in advance, rohm shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ro hms products for specific applications. (note1) medical equipment classification of the specific applications japan usa eu china class class class b class class class 2. rohm designs and manufactures its products subject to strict quality control system. however, semiconductor products can fail or malfunction at a certain rate. please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe desi gn against the physical injury, damage to any property, which a failure or malfunction of our products may cause. the following are examples of safety measures: [a] installation of protection circuits or other protective devices to improve system safety [b] installation of redundant circuits to reduce the impact of single or multiple circuit failure 3. our products are designed and manufactured for use under standard conditions and not under any special or extraordinary environments or conditio ns, as exemplified below. accordin gly, rohm shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of an y rohms products under any special or extraordinary environments or conditions. if you intend to use our products under any special or extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] use of our products in any types of liquid, incl uding water, oils, chemicals, and organic solvents [b] use of our products outdoors or in places where the products are exposed to direct sunlight or dust [c] use of our products in places where the products ar e exposed to sea wind or corrosive gases, including cl 2 , h 2 s, nh 3 , so 2 , and no 2 [d] use of our products in places where the products are exposed to static electricity or electromagnetic waves [e] use of our products in proximity to heat-producing components, plastic cords, or other flammable items [f] sealing or coating our products with resin or other coating materials [g] use of our products without cleaning residue of flux (ev en if you use no-clean type fluxes, cleaning residue of flux is recommended); or washing our products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] use of the products in places subject to dew condensation 4. the products are not subjec t to radiation-proof design. 5. please verify and confirm characteristics of the final or mounted products in using the products. 6. in particular, if a transient load (a large amount of load applied in a short per iod of time, such as pulse. is applied, confirmation of performance characteristics after on-boar d mounting is strongly recomm ended. avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading c ondition may negatively affect product performance and reliability. 7. de-rate power dissipation (pd) depending on ambient temper ature (ta). when used in seal ed area, confirm the actual ambient temperature. 8. confirm that operation temperat ure is within the specified range described in the product specification. 9. rohm shall not be in any way responsible or liable for fa ilure induced under deviant condi tion from what is defined in this document. precaution for mounting / circuit board design 1. when a highly active halogenous (chlori ne, bromine, etc.) flux is used, the resi due of flux may negatively affect product performance and reliability. 2. in principle, the reflow soldering method must be used; if flow soldering met hod is preferred, please consult with the rohm representative in advance. for details, please refer to rohm mounting specification downloaded from: http:///
datasheet d a t a s h e e t notice - ge rev.002 ? 2014 rohm co., ltd. all rights reserved. precautions regarding application examples and external circuits 1. if change is made to the constant of an external circuit, pl ease allow a sufficient margin considering variations of the characteristics of the products and external components, including transient characteri stics, as well as static characteristics. 2. you agree that application notes, re ference designs, and associated data and in formation contained in this document are presented only as guidance for products use. theref ore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. rohm shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. precaution for electrostatic this product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. please take proper caution in your manufacturing process and storage so that voltage exceeding t he products maximum rating will not be applied to products. please take special care under dry condit ion (e.g. grounding of human body / equipment / solder iron, isolation from charged objects, se tting of ionizer, friction prevention and temperature / humidity control). precaution for storage / transportation 1. product performance and soldered connections may deteriora te if the products are stor ed in the places where: [a] the products are exposed to sea winds or corros ive gases, including cl2, h2s, nh3, so2, and no2 [b] the temperature or humidity exceeds those recommended by rohm [c] the products are exposed to di rect sunshine or condensation [d] the products are exposed to high electrostatic 2. even under rohm recommended storage c ondition, solderability of products out of recommended storage time period may be degraded. it is strongly recommended to confirm sol derability before using products of which storage time is exceeding the recommended storage time period. 3. store / transport cartons in the co rrect direction, which is indicated on a carton with a symbol. otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4. use products within the specified time after opening a humidity barrier bag. baking is required before using products of which storage time is exceeding the recommended storage time period. precaution for product label qr code printed on rohm products label is for rohms internal use only. precaution for disposition when disposing products please dispose them proper ly using an authorized industry waste company. precaution for foreign exchange and foreign trade act since our products might fall under cont rolled goods prescribed by the applicable foreign exchange and foreign trade act, please consult with rohm representative in case of export. precaution regarding intellectual property rights 1. all information and data including but not limited to application example contained in this document is for reference only. rohm does not warrant that foregoi ng information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. rohm shall not be in any way responsible or liable for infringement of any intellectual property rights or ot her damages arising from use of such information or data.: 2. no license, expressly or implied, is granted hereby under any intellectual property rights or other rights of rohm or any third parties with respect to the information contained in this document. other precaution 1. this document may not be reprinted or reproduced, in whol e or in part, without prior written consent of rohm. 2. the products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of rohm. 3. in no event shall you use in any wa y whatsoever the products and the related technical information contained in the products or this document for any military purposes, incl uding but not limited to, the development of mass-destruction weapons. 4. the proper names of companies or products described in this document are trademarks or registered trademarks of rohm, its affiliated companies or third parties. downloaded from: http:///
datasheet datasheet notice C we rev.001 ? 2014 rohm co., ltd. all rights reserved. general precaution 1. before you use our pro ducts, you are requested to care fully read this document and fully understand its contents. rohm shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny rohms products against warning, caution or note contained in this document. 2. all information contained in this docume nt is current as of the issuing date and subj ec t to change without any prior notice. before purchasing or using rohms products, please confirm the la test information with a rohm sale s representative. 3. the information contained in this doc ument is provi ded on an as is basis and rohm does not warrant that all information contained in this document is accurate an d/or error-free. rohm shall not be in an y way responsible or liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or concerning such information. downloaded from: http:///

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