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datasheet 2/13 bu42xx series bu43xx series tsz02201-0r7r0g300050-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.006 www.rohm.com tsz22111 ? ? ordering information (unit : mm) sop4 2.1 0.2 0.05 1.3 2.0 0.2 1 2 4 3 1.25 +0.2 0.1 4 +6 0.27 0.15 4 0.13 +0.05 0.03 0.90.05 0.05 0.05 1.05max. 0.32 +0.05 0.04 0.42 +0.05 0.04 s 0.1 s (unit : mm) vsof5 1.2 0.05 4 3 1.0 0.05 1 0.6max 0.22 0.05 0.5 5 1.6 0.05 0.13 0.05 0.2max 2 1.6 0.05 ( max 1.28 include bu rr) (unit : mm) ssop5 2.90.2 0.13 4 + 6 -4 1.6 2.80.2 1.10.05 0.050.05 +0.2 -0.1 +0.05 -0.03 0.42 +0.05 -0.04 0.95 5 4 1 2 3 1.25max. 0.2min. 0.1 direction of feed reel * order quantity needs to be multiple of the minimum quantity. embossed ca rrier tape tape quantity direction of feed th e direction is th e 1p in of p rodu ct i s a t th e upper ri gh t wh en you hol d reel on th e l eft hand a nd you pull ou t th e tape on th e ri gh t hand 3000pcs tr ( ) 1pin b u x x x x x - t r part output type reset voltage value package packaging and number 42 : open drain 09 : 0.9v g : ssop5 forming specification 43 : cmos 0.1v step f : sop4 tr : embossed tape 48 : 4.8v fve : vsof5 and reel
datasheet 3/13 bu42xx series bu43xx series tsz02201-0r7r0g300050-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.006 www.rohm.com tsz22111 ? ? lineup output type open drain cmos detection voltage marking part number marking part number 4.8v zr bu4248 1h bu4348 4.7v zq bu4247 1g bu4347 4.6v zp bu4246 1f bu4346 4.5v zn bu4245 1e bu4345 4.4v zm bu4244 1d bu4344 4.3v zl bu4243 1c bu4343 4.2v zk bu4242 1b bu4342 4.1v zj bu4241 1a bu4341 4.0v zh bu4240 0z bu4340 3.9v zg bu4239 0y bu4339 3.8v zf bu4238 0x bu4338 3.7v ze bu4237 0w bu4337 3.6v zd bu4236 0v bu4336 3.5v zc bu4235 0u bu4335 3.4v zb bu4234 0t bu4334 3.3v za bu4233 0s bu4333 3.2v yz bu4232 0r bu4332 3.1v yy bu4231 0q bu4331 3.0v yx bu4230 0p bu4330 2.9v yw bu4229 0n bu4329 2.8v yv bu4228 0m bu4328 2.7v yu bu4227 0l bu4327 2.6v yt bu4226 0k bu4326 2.5v ys bu4225 0j bu4325 2.4v yr bu4224 0h bu4324 2.3v yq bu4223 0g bu4323 2.2v yp bu4222 0f bu4322 2.1v yn bu4221 0e bu4321 2.0v ym bu4220 0d bu4320 1.9v yl bu4219 0c bu4319 1.8v yk bu4218 0b bu4318 1.7v yj bu4217 0a bu4317 1.6v yh bu4216 zz bu4316 1.5v yg bu4215 zy bu4315 1.4v yf bu4214 zx bu4314 1.3v ye bu4213 zw bu4313 1.2v yd bu4212 zv bu4312 1.1v yc bu4211 zu bu4311 1.0v yb bu4210 zt bu4310 0.9v ya bu4209 zs bu4309
datasheet 4/13 bu42xx series bu43xx series tsz02201-0r7r0g300050-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.006 www.rohm.com tsz22111 ? ? absolute maximum ratings parameter symbol limit unit power supply voltage v dd -0.3 to +7 v output voltage nch open drain output v out gnd-0.3 to +7 v cmos output gnd-0.3 to v dd +0.3 output current io 70 ma power dissipation ssop5(sot-23-5) *1*4 pd 540 mw sop4(sc-82) *2*4 400 vsof5 *3*4 210 operation temperature range t opt -40 to +125 c ambient storage temperature tstg -55 to +125 c *1 reduced by 5.4mw/c when used over 25c. *2 reduced by 4.0mw/c when used over 25c. *3 reduced by 2.1mw/c when used over 25c. *4 when mounted on rohm standard circuit board (70mm70mm1.6mm, glass epoxy board). electrical characteristics (unless otherwise specified ta=-25 to 125c) parameter symbol condition limit unit min. typ. max. detection voltage v det v dd =h l, ta=25c, r l =470k ? ? ?
datasheet 5/13 bu42xx series bu43xx series tsz02201-0r7r0g300050-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.006 www.rohm.com tsz22111 ? ? electrical characteristics (unless otherwise specified ta=-25 to 125c) - continued parameter symbol condition limit unit min. typ. max. leak current when off i leak v dd =v ds =7v ta=-40 to 85c - 0 0.1 a v dd =v ds =7v ta=85 to 125c - 0 1 ct pin threshold voltage v cth v dd =v det 1.1, v det =0.9 to 2.5v ta=25c r l =470k ? ? ? ? ? h l ta=-40 to 125c r l =470k ?
datasheet 6/13 bu42xx series bu43xx series tsz02201-0r7r0g300050-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.006 www.rohm.com tsz22111 ? ? block diagrams
datasheet 7/13 bu42xx series bu43xx series tsz02201-0r7r0g300050-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.006 www.rohm.com tsz22111 ? ? typical performance curves fig.3 circuit current 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0 1 2 3 4 5 6 7 v dd supply voltage
datasheet 8/13 bu42xx series bu43xx series tsz02201-0r7r0g300050-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.006 www.rohm.com tsz22111 ? ? typical performance curves C continued 0.0 0.1 0.2 0.3 0.4 0.5 -40 0 40 80 120 temperature ?
datasheet 9/13 bu42xx series bu43xx series tsz02201-0r7r0g300050-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.006 www.rohm.com tsz22111 ? ? typical performance curves C continued 0.0 0.5 1.0 -40 0 40 80 120 temperature
datasheet 10/13 bu42xx series bu43xx series tsz02201-0r7r0g300050-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.006 www.rohm.com tsz22111 ? ? 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 vou t terminal voltage switches from either ?high? to ?low? or from ?low? to ?high?. bu42xx and bu43xx series have delay time function which set t plh (output ?low? ?high?) using an external capacitor (c ct ). because the bu42xx series uses an open drain output type, it is necessary to connect 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 (bu42xx series internal block diagram) fig.16 (bu43xx type internal block diagram) setting of detector delay time the delay time of this detector ic can be set at the rise of v dd by the capacitor connected to c t terminal. delay time at the rise of v dd t plh :time until when vou t rises to 1/2 of v dd after v dd rises up and beyond the release voltage(v det + ? reference data of falling time (t phl ) output examples of falling time (t phl ) output part number t phl [s] bu4245 275.7 bu4345 359.3 * this data is for reference only. the figures will vary with the application, so please confirm the actual operating conditions before use. timing waveforms example: the following shows the relationship between the input voltage v dd , the c t terminal voltage v ct and the output voltage v out when the input power supply voltage v dd is made to sweep up and sweep down (the circuits are shown in fig.15 and 16). ? vref v dd gnd ct r1 r2 r3 q3 q1 v out reset v dd vref v dd gnd ct r1 r2 r3 q3 q2 v out reset q1 v dd v dd -v cth v dd v dd v det +
datasheet 11/13 bu42xx series bu43xx series tsz02201-0r7r0g300050-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.006 www.rohm.com tsz22111 ? ? circuit applications 1) examples of common power supply detection reset circuits application examples of bu42xx series (open drain output type) and bu43xx series (cmos output type) are shown below. case1: power supply of microcontroller (v dd 2) differs from the power supply of the reset detection (v dd 1 ). use an open drain output type (bu42xx series) device with a load resistance r l as shown fig.18. case2: power supply of microcontroller (v dd 1 ) is the same as the power supply of the reset detection (v dd 1 ). use a cmos output type (bu43xx series) device or an open drain output type (bu42xx series) device with a pull up resistor between the output and v dd 1. when a capacitance c l for noise filtering is connected to vou t pin (the reset signal input terminal of the microcontroller), please take into account the waveform of the rise and fall time of the output voltage (vou t ). 2) the following is an example of a circuit application in which an or connection between two types of detection voltage resets the microcontroller. to reset the microcontroller when many independent power supplies are used in the system, or connect an open drain output type (bu42xx series) to the microcontroller?s 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. v dd1 bu43xx c in gnd c t r st c l (capacitor for noise filtering) micro controller fig.19 cmos output type v dd1 bu42xx v dd2 gnd r st c l (capacitor for noise filtering) c t r l c in micro controller fig.18 open drain output type v dd1 v dd3 gnd r st
datasheet 12/13 bu42xx series bu43xx series tsz02201-0r7r0g300050-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.006 www.rohm.com tsz22111 ? ? v d d - id d p eak c urrent ta=25c 0.001 0.01 0.1 1 10 3 4 5 6 7 8 9 10 v d d [v ] id d -peak[m a ] b u 49xx,b u 43xx b u 48xx,b u 42xx b d 52xx b d 53xx tem p - id d (b u 42xx) 0.0 0.5 1.0 1.5 2.0 2.5 -50 -30 -10 10 30 50 70 90 110 130 tem p idd peak current[ma] v d d 3v v d d 6v v d d 7v v d d 4v
datasheet 13/13 bu42xx series bu43xx series tsz02201-0r7r0g300050-1- 2 ? 2013 rohm co., ltd. all rights reserved. 22.may.2013 rev.006 www.rohm.com tsz22111 ? ? 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 expected characteristics of the ic can be approximately obtained. the electrical characteristics are guaranteed 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) external parameters the case of needless ?delay time?, recommended to insert more 470k ? ? ? ? ? ? ?
datasheet datasheet notice - rev.004 ? 2013 rohm co., ltd. all rights reserved. notice general precaution 1) before you use our products, you are requested to care fully read this document and fully understand its contents. rohm shall not be in any way responsible or liable for fa ilure, malfunction or accident arising from the use of any rohm?s products against warning, caution or note contained in this document. 2) all information contained in this document is current as of the issuing date and subjec t to change without any prior notice. before purchasing or using rohm?s products, please confirm the la test information with a rohm sales representative. precaution on using rohm products 1) our products are designed and manufactured for applicat ion in ordinary electronic 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 extremel y high reliability (such as medical equipment, 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 hm?s products for specific applications. 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 rohm?s 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 temperature is within t he 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.
datasheet datasheet notice - rev.004 ? 2013 rohm co., ltd. all rights reserved. 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 method is preferred, please consult with the rohm representative in advance. for details, please refer to rohm mounting specification 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 indepen dent 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 rohm?s 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.
datasheet datasheet notice - rev.004 ? 2013 rohm co., ltd. all rights reserved. other precaution 1) the information contained in this document is provi ded on an ?as is? basis and rohm does not warrant that all information contained in this document is accurate and/or error-free. rohm shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties resulting from inaccuracy or errors of or concerning such information. 2) this document may not be reprinted or reproduced, in whol e or in part, without prior written consent of rohm. 3) the products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of rohm. 4) in no event shall you use in any way whatsoever the pr oducts 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. 5) the proper names of companies or products described in this document are trademarks or registered trademarks of rohm, its affiliated companies or third parties.

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