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www.rohm.com ? 2013 rohm co., ltd. all rights reserved. tsz02201-0r7r0g300130-1-2 tsz22111 ? 15 ? 001 2/14 17.may.2013 rev.003 bu45kxxxx, bu46kxxxx, bu45lxxxx, bu46lxxxx series datasheet b bb b u uu u x xx x x xx x x xx x x xx x x xx x x xx x x xx x - -- - t tt t l ll l part output type package 1 reset voltage value counter timer package 2 packaging and number 45 : open drain 23 : 2.3v delay time settings forming specification 46 : cmos 0.1v step 2 : 200ms tl : embossed tape 48 : 4.8v 4 : 400ms and reel package 1 package 2 package name k g ssop3 (1pin gnd) l g ssop3 (3pin gnd) ordering information lineup table 1. open drain output type counter timer delay time settings 1-pin gnd 3-pin gnd 200ms 400ms 200ms 400ms detection voltage marking part number marking part number marking part number marking part number 4.8v bh bu45k482 ef bu45k484 hd bu45l482 nb bu45l484 4.7v bg bu45k472 ee bu45k474 hc bu45l472 na bu45l474 4.6v bf bu45k462 ed bu45k464 hb bu45l462 my bu45l464 4.5v be bu45k452 ec bu45k454 ha bu45l452 mx bu45l454 4.4v bd bu45k442 eb bu45k444 gy bu45l442 mw bu45l444 4.3v bc bu45k432 ea bu45k434 gx bu45l432 mt bu45l434 4.2v bb bu45k422 dy bu45k424 gw bu45l422 ms bu45l424 4.1v ba bu45k412 dx bu45k414 gt bu45l412 mr bu45l414 4.0v ay bu45k402 dw bu45k404 gs bu45l402 mp bu45l404 3.9v ax bu45k392 dt bu45k394 gr bu45l392 mn bu45l394 3.8v aw bu45k382 ds bu45k384 gp bu45l382 mm bu45l384 3.7v at bu45k372 dr bu45k374 gn bu45l372 mk bu45l374 3.6v as bu45k362 dp bu45k364 gm bu45l362 mh bu45l364 3.5v ar bu45k352 dn bu45k354 gk bu45l352 mg bu45l354 3.4v ap bu45k342 dm bu45k344 gh bu45l342 mf bu45l344 3.3v an bu45k332 dk bu45k334 gg bu45l332 me bu45l334 3.2 v am bu45k322 dh bu45k324 gf bu45l322 md bu45l324 3.1v ak bu45k312 dg bu45k314 ge bu45l312 mc bu45l314 3.0v ah bu45k302 df bu45k304 gd bu45l302 mb bu45l304 2.9v ag bu45k292 de bu45k294 gc bu45l292 ma bu45l294 2.8v af bu45k282 dd bu45k284 gb bu45l282 ky bu45l284 2.7v ae bu45k272 dc bu45k274 ga BU45L272 kx bu45l274 2.6v ad bu45k262 db bu45k264 fy bu45l262 kw bu45l264 2.5v ac bu45k252 da bu45k254 fx bu45l252 kt bu45l254 2.4v ab bu45k242 cy bu45k244 fw bu45l242 ks bu45l244 2.3v aa bu45k232 cx bu45k234 ft bu45l232 kr bu45l234
www.rohm.com ? 2013 rohm co., ltd. all rights reserved. tsz02201-0r7r0g300130-1-2 tsz22111 ? 15 ? 001 3/14 17.may.2013 rev.003 bu45kxxxx, bu46kxxxx, bu45lxxxx, bu46lxxxx series datasheet lineup - continued table 2. cmos output type counter timer delay time settings 1-pin gnd 3-pin gnd 200ms 400ms 200ms 400ms detection voltage marking part number marking part number marking part number marking part number 4.8v cw bu46k482 fs bu46k484 kp bu46l482 p m bu46l484 4.7v ct bu46k472 fr bu46k474 kn bu46l472 p k bu46l474 4.6v cs bu46k462 fp bu46k464 km bu46l462 p h bu46l464 4.5v cr bu46k452 fn bu46k454 kk bu46l452 p g bu46l454 4.4v cp bu46k442 fm bu46k444 kh bu46l442 p f bu46l444 4.3v cn bu46k432 fk bu46k434 kg bu46l432 p e bu46l434 4.2v cm bu46k422 fh bu46k424 kf bu46l422 p d bu46l424 4.1v ck bu46k412 fg bu46k414 ke bu46l412 p c bu46l414 4.0v ch bu46k402 ff bu46k404 kd bu46l402 p b bu46l404 3.9v cg bu46k392 fe bu46k394 kc bu46l392 p a bu46l394 3.8v cf bu46k382 fd bu46k384 kb bu46l382 ny bu46l384 3.7v ce bu46k372 fc bu46k374 ka bu46l372 nx bu46l374 3.6v cd bu46k362 fb bu46k364 hy bu46l362 nw bu46l364 3.5v cc bu46k352 fa bu46k354 hx bu46l352 nt bu45l354 3.4v cb bu46k342 ey bu46k344 hw bu46l342 ns bu46l344 3.3v ca bu46k332 ex bu46k334 ht bu46l332 nr bu46l334 3. 2 v by bu46k322 ew bu46k324 hs bu46l322 np bu46l324 3.1v bx bu46k312 et bu46k314 hr bu46l312 nn bu46l314 3.0v bw bu46k302 es bu46k304 hp bu46l302 nm bu46l304 2.9v bt bu46k292 er bu46k294 hn bu46l292 nk bu46l294 2.8v bs bu46k282 ep bu46k284 hm bu46l282 nh bu46l284 2.7v br bu46k272 en bu46k274 hk bu46l272 ng bu46l274 2.6v bp bu46k262 em bu46k264 hh bu46l262 nf bu46l264 2.5v bn bu46k252 ek bu46k254 hg bu46l252 ne bu46l254 2.4v bm bu46k242 eh bu46k244 hf bu46l242 nd bu46l244 2.3v bk bu46k232 eg bu46k234 he bu46l232 nc bu46l234
www.rohm.com ? 2013 rohm co., ltd. all rights reserved. tsz02201-0r7r0g300130-1-2 tsz22111 ? 15 ? 001 4/14 17.may.2013 rev.003 bu45kxxxx, bu46kxxxx, bu45lxxxx, bu46lxxxx series datasheet absolute maximum ratings (ta=25c) parameter symbol limit unit power supply voltage v dd- g nd -0.3 to +6.0 v output voltage nch open drain output v out gnd-0.3 to +6.0 v cmos output gnd-0.3 to vdd+0.3 output current io 70 ma power dissipation *1 *2 pd 700 mw operating temperature topr -40 to +105 c ambient storage temperature tstg -55 to +125 c *1 use above ta=25c results in a 7.0mw loss per degree. *2 when mounted on rohm standard circuit board (70mmx70mmx1.6mm, glass epoxy board). electrical characteristics (unless otherwise specified ta=-40 to 105c) parameter symbol condition limit unit min. typ. max. operating voltage range v opl v ol 0.4v, r l =470k ? , ta=25~105c 0.6 - 6.0 v v ol 0.4v, r l =470k ? , ta=-40~25c 0.9 - 6.0 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~105c - 50 360 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 bu4 xxxx 2g ta=25c 120 200 280 ms ta=-40c to 85c 95 - 460 ta=85c to 105c 85 - 235 bu4 xxxx 4g ta=25c 240 400 560 ta=-40c to 85c 190 - 920 ta=85c to 105c 170 - 470 circuit current when on i dd 1 v dd =v det -0.2v, v det =2.3v~4.8v 0.60 2.30 7.00 a circuit current when off i dd 2 v dd =v det +1.0v, v det =2.3v~4.8v 1.10 2.80 8.00 a high output voltage (pch) v oh v dd =5.0v, i source = 6.8ma, v det (4.3v to 4.8v) vdd-0.5 - v lowoutput voltage (nch) v ol v dd =1.2v, i sink = 2.0ma - - 0.3 v v dd =2.4v, i sink = 8.5ma, v det (2.7v to 4.8v) - - 0.3 v leak current when off ileak v dd =v ds =6.0v *1 - - 1.0 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. *2 t plh :v dd =(v det (t)-0.5v) (v det (t)+0.5v) *3 t plh :v dd =please set up the rise up time between v dd =v opl v det more than 10s.
www.rohm.com ? 2013 rohm co., ltd. all rights reserved. tsz02201-0r7r0g300130-1-2 tsz22111 ? 15 ? 001 5/14 17.may.2013 rev.003 bu45kxxxx, bu46kxxxx, bu45lxxxx, bu46lxxxx series datasheet block diagrams fig.1 bu45xxxxx series f ig.2 bu46xxxxx series vref v out v dd gnd oscillator circuit counter timer v out vref v dd gnd oscillator circuit counter timer
www.rohm.com ? 2013 rohm co., ltd. all rights reserved. tsz02201-0r7r0g300130-1-2 tsz22111 ? 15 ? 001 6/14 17.may.2013 rev.003 bu45kxxxx, bu46kxxxx, bu45lxxxx, bu46lxxxx series datasheet typical performance curves 0 1 2 3 4 5 6 7 8 0 1 2 3 4 5 6 7 v dd supply voltage:v dd [v] output voltage:v out [v] ta=25c ta=-40c ta=105c fig.6 i/o characteristics bu45k232g fig.5 high output current vdd=6v 0 10 20 30 40 50 0 1 2 3 4 5 drain-source voltage:vds[v] "high" output current:ioh(ma) bu46k232g ta=25c ta=-40c ta=105c fig.3 circuit current 0 1 2 3 4 5 6 0 1 2 3 4 5 6 7 vdd supply voltage:v dd [v] circuit current:i dd [a] ta=25c ta=-40c ta=105c bu45k232g 0 2 4 6 8 10 12 14 16 0 1 2 3 4 5 6 7 drain-source voltage:v ds [v] "low" output current:i ol [ma] ta=105c ta=25c ta=-40c bu45k232g fig.4 low output current vdd=1.2v
www.rohm.com ? 2013 rohm co., ltd. all rights reserved. tsz02201-0r7r0g300130-1-2 tsz22111 ? 15 ? 001 7/14 17.may.2013 rev.003 bu45kxxxx, bu46kxxxx, bu45lxxxx, bu46lxxxx series datasheet typical performance curves - continued 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[c] circuit current when on : i dd 1 [a] bu45k232g fig.8 circuit current when on (vdd=v det -0.2v) vdd=2.1v 2.1 2.2 2.3 2.4 2.5 2.6 -40 -20 0 20 40 60 80 100 temperature:ta[c] detection voltage:vout[v] fig.7 detection voltage release voltage [ bu45k232g ] low to high(v det + ? v det ) high to low(v det ) fig.9 circuit current when off (vdd=v det +1v) vdd=3.3v 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5 -40 -20 0 20 40 60 80 100 temperature:ta[c] circuit current when off:i dd 2 [ua] bu45k232g fig.10 operating limit voltage 0 0.1 0.2 0.3 0.4 0.5 0.6 -40 -20 0 20 40 60 80 100 temperature:ta[c] minimum operating voltage:v opl [v] bu45k232g
www.rohm.com ? 2013 rohm co., ltd. all rights reserved. tsz02201-0r7r0g300130-1-2 tsz22111 ? 15 ? 001 8/14 17.may.2013 rev.003 bu45kxxxx, bu46kxxxx, bu45lxxxx, bu46lxxxx series datasheet typical performance curves - continued fig.12 output delay time high low 0 1 2 3 -40 -20 0 20 40 60 80 100 temperature:ta[c] "low" delay time:tphl[s] bu45k232g fig.11 output delay time low high 100 120 140 160 180 200 220 240 260 280 300 -40 -20 0 20 40 60 80 100 temperature:ta[c] "high" delay time:tplh [ms] bu45k232g
www.rohm.com ? 2013 rohm co., ltd. all rights reserved. tsz02201-0r7r0g300130-1-2 tsz22111 ? 15 ? 001 9/14 17.may.2013 rev.003 bu45kxxxx, bu46kxxxx, bu45lxxxx, bu46lxxxx series datasheet application information explanation of operation for both the open drain type (fig.13) and the cmos output type (fig.14), 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 bu45xxxxx 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.13 (bu45xxxxx type internal block diagram) fig.14 (bu46xxxxx type internal block diagram) reference data examples of leading (t plh ) and falling (t phl ) output part number t plh [ms] t phl [s] bu45k232g 208 1.4 bu46k232g 208 1.4 v dd =1.8v 2.8v v dd =2.8v 1.8v *this data is for reference only. the figures will vary with the application, so please confirm actual operating conditions before use. timing waveform example: the following shows the relationship between the input voltages v dd 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 those in fig. 13 and 14). 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 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 ). 5 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, thus, preventing malfunctions due to noise. timing may change depending on application and use. please verify and confirm using practical applications. fig.15 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 vref r1 r2 r3 v dd gnd oscillator circuit counter timer q1 v out v dd reset gnd reset q2 q1 vref r1 r2 r3 v dd oscillator circuit counter timer v out
www.rohm.com ? 2013 rohm co., ltd. all rights reserved. tsz02201-0r7r0g300130-1-2 tsz22111 ? 15 ? 001 10/14 17.may.2013 rev.003 bu45kxxxx, bu46kxxxx, bu45lxxxx, bu46lxxxx series datasheet circuit applications 1. examples of a common power supply detection reset circuit. application examples of bu45xxxxx series (open drain output type) and bu46xxxxx 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 (bu45xxxxx series) device with a load resistance r l as shown fig.16. 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 (bu46xxxxx) device or an open drain output type (bu45xxxxx) with pull up resistor between the output and v dd1 . (as shown fig.17) 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. 18 to reset the microcontroller when many independent power supplies are used in the system, or connect an open drain output type (bu45xxxxx series) to the microcontrollers input with pull-up resistor to the supply voltage of the microcontroller (v dd3 ) as shown in fig. 18. by pulling-up to v dd3 , output high voltage of micro-controller power supply is possible. fig.16 open drain output type fig.17 cmos output type v dd1 v dd2 gnd bu45xxxxx c l noise-filtering capacitor r l r st micro controller c l noise-filtering capacitor v dd1 gnd bu46xxxxx r st micro controller v dd2 v dd1 v dd3 gnd r st micro con troller r l bu45xxxxx bu45xxxxx
www.rohm.com ? 2013 rohm co., ltd. all rights reserved. tsz02201-0r7r0g300130-1-2 tsz22111 ? 15 ? 001 11/14 17.may.2013 rev.003 bu45kxxxx, bu46kxxxx, bu45lxxxx, bu46lxxxx series datasheet 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 current that flows from the power supply (vdd) to ground (gnd) as the output logic changes its state. this current flow may cause malfunction in the systems operation such as output oscillations, etc. fig. 19 when an in-rush current (i1) flows into the circuit (refer to fig. 19) at the time when output switches from low to high, a voltage drop of i1r2 (input resistor) will occur in the circuit 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 switches 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 bu45xxxxx bu46xxxxx gnd r1 i1 v1 cin c l i dd v dd v det 0 in-rush current fig. 20 current consumption vs. power supply voltage
www.rohm.com ? 2013 rohm co., ltd. all rights reserved. tsz02201-0r7r0g300130-1-2 tsz22111 ? 15 ? 001 12/14 17.may.2013 rev.003 bu45kxxxx, bu46kxxxx, bu45lxxxx, bu46lxxxx series datasheet 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) gnd 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 1uf 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) a v dd lower than the mininum input voltage puts the v out in high impedance state. v out must be pulled up to v dd . 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 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 rl is 50k ? to 470k ? . 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 up time. please verify 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 during 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 to the parasitic capacitance of internal logic may be unstable. therefore, give special consideration to power coupling capacitance, power wiring, width of gnd wiring, and routing of connections.
www.rohm.com ? 2013 rohm co., ltd. all rights reserved. tsz02201-0r7r0g300130-1-2 tsz22111 ? 15 ? 001 13/14 17.may.2013 rev.003 bu45kxxxx, bu46kxxxx, bu45lxxxx, bu46lxxxx series datasheet physical dimension, tape and reel information package name ssop3 f
www.rohm.com ? 2013 rohm co., ltd. all rights reserved. tsz02201-0r7r0g300130-1-2 tsz22111 ? 15 ? 001 14/14 17.may.2013 rev.003 bu45kxxxx, bu46kxxxx, bu45lxxxx, bu46lxxxx series datasheet revision history date revision changes 24.jan.2013 001 new release 13.feb.2013 002 change max limit of idd1 and idd2. 17.may.2013 003 change max limit of idd1 and idd2. change min and max limits of tplh. add rows to the table of electrical characteristics. change max limit of leak current when off modify the sentence structure in general description and operational notes. change limits for vdet at vdet=2.5v,3.0v,3.3v,4.2v,4.8v
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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