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product structure silicon monolithic integrated circuit this product is not designed for protection against radioactive rays . 1/ 15 tsz02201-0r7r0g300060-1-2 ? 20 15 rohm co., ltd. all rights reserved. 02.nov.2015 rev.012 tsz22111 ? 14 ? 001 www.rohm.com voltage detector ic series low voltage standard cmos voltage detector ics bu48 xx series bu49 xx series general description rohm standard cmos reset ic series is a high-accuracy, low current consumption reset ic series. the lineup was established with two output types (nch open drain and cmos output) and detection voltage range from 0.9v to 4.8v in increments of 0.1v, so that the series may be selected according to the application at hand. features ? ultra-low current consumption ? high accuracy detection, ultra-low voltage detection ? two output types (nch open drain and cmos output) ? wide operating temperature range ? very small and low height package ? package ssop5 and sop4 is similar to sot- 23 -5 and sc -82 respectively (jedec) key specifications ? detection voltage: 0.9v to 4.8v 0.1v steps ? high accuracy detection voltage: 1.0% ? ultra-low current consumption: 0.55a (typ.) ? operating temperature range: -40c to +125c package ssop5 2.90mm x 2.80mm x 1.2 5m m sop4 2.00mm x 2.10mm x 0.95mm vsof5 1.60mm x 1.60mm x 0.60mm applications all electronic devices that use micro controllers and log ic circuits typical application circuit open drain output type bu48xx series cmos output type bu49xx series v dd1 bu48 xx v dd2 gnd c l (capacitor for noise filtering) r l c in r st micro controller v dd1 bu49 xx c in gnd c l (capacitor for noise filtering) r st micro controller datashee t downloaded from: http:///
2/ 15 bu48 xx series bu49 xx series tsz02201-0r7r0g300060-1-2 ? 20 15 rohm co., ltd. all rights reserved. 02.nov.2015 rev.012 www.rohm.com tsz22111 ? 15 ? 001 connection diagram & pin descriptions ssop5 sop4 top view top view vsof5 top view ordering information b u x x x x x - t r part output type reset voltage value package packaging a nd number 48 : open drain 09 : 0.9v g : ssop5 forming spe cification 49 : cmos 0.1v step f : sop4 tr : embossed tape 48 : 4.8v fve : vsof5 and reel pin no. symbol function pin no. symbol function 1 v out reset output 1 v out reset output 2 v dd power supply voltage 2 v dd power supply voltage 3 gnd gnd 3 n.c. unconnected terminal 4 n.c. unconnected terminal 4 gnd gnd 5 n.c. unconnected terminal pin no. symbol function 1 v out reset output 2 sub substrate* 3 n.c. unconnected terminal 4 v dd power supply voltage 5 gnd gnd *connect the substrate to v dd v dd v out sub n.c gnd 4 3 2 1 5 marking lot. no v out v dd n.c. gnd 1 2 3 4 marking lot. no v out v dd gnd n.c. n.c. lot. no marking downloaded from: http:///
3/ 15 bu48 xx series bu49 xx series tsz02201-0r7r0g300060-1-2 ? 20 15 rohm co., ltd. all rights reserved. 02.nov.2015 rev.012 www.rohm.com tsz22111 ? 15 ? 001 lineup output type open drain cmos detection voltage marking part number marking part number 4.8v jr bu4848 lh bu4948 4.7v jq bu4847 lg bu4947 4.6v jp bu4846 lf bu4946 4.5v jn bu4845 le bu4945 4.4v jm bu4844 ld bu4944 4.3v jl bu4843 lc bu4943 4.2v jk bu4842 lb bu4942 4.1v jj bu4841 la bu4941 4.0v jh bu4840 kz bu4940 3.9v jg bu4839 ky bu4939 3.8v jf bu4838 kx bu4938 3.7v je bu4837 kw bu4937 3.6v jd bu4836 kv bu4936 3.5v jc bu4835 ku bu4935 3.4v jb bu4834 kt bu4934 3.3v ja bu4833 ks bu4933 3.2v hz bu4832 kr bu4932 3.1v hy bu4831 kq bu4931 3.0v hx bu4830 kp bu4930 2.9v hw bu4829 kn bu4929 2.8v hv bu4828 km bu4928 2.7v hu bu4827 kl bu4927 2.6v ht bu4826 kk bu4926 2.5v hs bu4825 kj bu4925 2.4v hr bu4824 kh bu4924 2.3v hq bu4823 kg bu4923 2.2v hp bu4822 kf bu4922 2.1v hn bu4821 ke bu4921 2.0v hm bu4820 kd bu4920 1.9v hl bu4819 kc bu4919 1.8v hk bu4818 kb bu49 18 1.7v hj bu4817 ka bu4917 1.6v hh bu4816 jz bu4916 1.5v hg bu4815 jy bu4915 1.4v hf bu4814 jx bu4914 1.3v he bu4813 jw bu4913 1.2v hd bu4812 jv bu4912 1.1v hc bu4811 ju bu4911 1.0v hb bu4810 jt bu4910 0.9v ha bu4809 js bu4909 downloaded from: http:///
4/ 15 bu48 xx series bu49 xx series tsz02201-0r7r0g300060-1-2 ? 20 15 rohm co., ltd. all rights reserved. 02.nov.2015 rev.012 www.rohm.com tsz22111 ? 15 ? 001 absolute maximum ratings parameter symbol limits 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 *1*4 pd 540 mw sop4 *2*4 400 vsof5 *3*4 210 operation temperature range t opt -40 to +125 c ambient storage temperature tstg -55 to +125 *1 when used at temperatures higher than ta=25 , the power is reduced by 5.4mw per 1 above 25 . *2 when used at temperatures higher than ta=25 , the power is reduced by 4.0mw per 1 above 25 . *3 when used at temperatures higher than ta=25 , the power is reduced by 2.1mw per 1 above 25 . *4 when a rohm standard circuit board (70mm70mm1.6mm, glass e poxy board)is mounted. electrical characteristics parameter symbol condition limits unit min. typ. max. detection voltage v det v dd =h ? l , ta=25 , r l =470k ? v det (t) 0.99 v det (t) v det (t) 1.01 v vdet=1.8v ta=+25c 1.782 1.8 1.818 ta=-40c to 85c 1.741 - 1.860 ta=85c to 125c 1.718 - 1.883 vdet=2.5v ta=+25c 2.475 2.5 2.525 ta=-40c to 85c 2.418 - 2.584 ta=85c to 125c 2.386 - 2.615 vdet=3.0v ta=+25c 2.970 3.0 3.030 ta=-40c to 85c 2.901 - 3.1 00 ta=85c to 125c 2.8 64 - 3.1 39 vdet=3.3v ta=+25c 3.267 3.3 3.333 ta=-40c to 85c 3.191 - 3.410 ta=85c to 125c 3.1 50 - 3.4 52 vdet=4.2v ta=+25c 4.158 4.2 4.242 ta=-40c to 85c 4.061 - 4.341 ta=85c to 125c 4.009 - 4.394 detection voltage temperature coefficient v det / ? t ta=- 40 to 125 *1 - 30 - ppm/ hysteresis voltage ? v det v dd =l ? h ? l ta=- 40 to 125 r l =470k ? v det 1.0v v det 0.03 v det 0.05 v det 0.08 v v det 1.1v v det 0.03 v det 0.05 v det 0.07 *1 guarant ee d by design.(outgoing inspection is not done on all products.) v det (t) : standard detection voltage (0.9v to 4.8v, 0.1v step) r l : pull-up resistor to be connected between v out and power supply. downloaded from: http:///
5/ 15 bu48 xx series bu49 xx series tsz02201-0r7r0g300060-1-2 ? 20 15 rohm co., ltd. all rights reserved. 02.nov.2015 rev.012 www.rohm.com tsz22111 ? 15 ? 001 unless otherwise specified ta=-25 to 125 parameter symbol condition limit unit min. typ. max. circuit current when on i dd 1 v dd =v det -0.2v v det =0.9-1.3v - 0.15 0.88 a v det =1.4-2.1v - 0.20 1.05 v det =2.2-2.7v - 0.25 1.23 v det =2.8-3.3v - 0.30 1.40 v det =3.4-4.2v - 0.35 1.58 v det =4.3-4.8v - 0.40 1.75 circuit current when off i dd 2 v dd =v det +2.0v v det =0.9-1.3v - 0.30 1.40 a v det =1.4-2.1v - 0.35 1.58 v det =2.2-2.7v - 0.40 1.75 v det =2.8-3.3v - 0.45 1.93 v det =3.4-4.2v - 0.50 2.10 v det =4.3-4.8v - 0.55 2.28 operating voltage range v opl v ol 0.4v, ta=25 to 125 , r l =470k ? 0.70 - - v v ol 0.4v, ta=- 40 to 25 , r l = 470k ? 0.90 - - low output voltage (nch) v ol v dd = 0.85v , i sink = 20 a - - 0. 05 v v dd = 1.5v , i sink = 1 ma , v d et =1.7-4.8v - - 0.5 v v dd = 2.4v , i sink = 4 ma , v d et =2.7-4.8v - - 0.5 high output voltage (pch) (only bu49 xx ) v oh v dd =4.8v ,i source =1.7ma, v d et =0.9v to 3.9v vdd-0.5 - - v v dd =6.0v ,i source =2.0ma, v d et =4.0v to 4.8v vdd-0.5 - - output leak current when off (only bu48 xx ) i leak v dd =v ds =7v ta=-40 to 85 - 0 0.1 a v dd =v ds =7v ta=85 to 125 - 0 1 * this product is not designed for protection against radioactiv e rays. v det (t) : standard detection voltage (0.9v to 4.8v, 0.1v step) r l : pull-up resistor to be connected between v out and power supply. block diagrams vref v out v dd gnd fig.1 bu48 xx series vref v out v dd gnd fig.2 bu49 xx series downloaded from: http:///
6/ 15 bu48 xx series bu49 xx series tsz02201-0r7r0g300060-1-2 ? 20 15 rohm co., ltd. all rights reserved. 02.nov.2015 rev.012 www.rohm.com tsz22111 ? 15 ? 001 typical performance curves fig.3 circuit current 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0 1 2 3 4 5 6 7 v dd supply voltage v dd [v] circuit current i dd [a] bu4816f 0 1 2 3 4 5 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 bu4816f fig.4 low output current 0 5 10 15 20 25 0 1 2 3 4 5 6 drain-source voltage v ds [v] "high" o utput current i oh [ma] bu4916f 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 0 1 2 3 4 5 6 7 v dd supply voltage v dd [v] output voltage v out [v] bu4816f bu4816 bu4916 bu4916 bu4816 bu4916 bu4816 bu4916 downloaded from: http:///
7/ 15 bu48 xx series bu49 xx series tsz02201-0r7r0g300060-1-2 ? 20 15 rohm co., ltd. all rights reserved. 02.nov.2015 rev.012 www.rohm.com tsz22111 ? 15 ? 001 typical performance curves C continued 0.0 0.1 0.2 0.3 0.4 0.5 -40 0 40 80 120 temperature ta[ ] circu it c urr ent wh en on i dd1 [a ] bu4816f fig.9 circuit current when on fig.10 circuit current when off 0.0 0.2 0.4 0.6 0.8 1.0 -40 0 40 80 120 temperature ta[ ] circu it c urr ent wh en off i dd2 [a ] bu4816f fig.8 detecting voltage release voltage 1.0 1.5 2.0 -40 0 40 80 120 temperature ta[ ] detection volt age v de t [v] low to high(v det +v det ) high to low(v det ) bu4816f 0.0 0.2 0.4 0.6 0.8 1.0 0.0 0.5 1.0 1.5 2.0 2.5 v dd supply voltage v dd [v] o utput vo ltage v out [v] bu4816f fig.7 operating limit voltage bu4816 bu4916 bu4816 bu4916 bu4816 bu4916 bu4816 bu4916 downloaded from: http:///
8/ 15 bu48 xx series bu49 xx series tsz02201-0r7r0g300060-1-2 ? 20 15 rohm co., ltd. all rights reserved. 02.nov.2015 rev.012 www.rohm.com tsz22111 ? 15 ? 001 typical performance curves C continued 0.0 0.2 0.4 0.6 0.8 1.0 -40 0 40 80 120 temperature ta[ ] minimum operating vo l tage v opl [v] bu4816f fig.11 operating limit voltage bu4816 bu49 16 downloaded from: http:///
9/ 15 bu48 xx series bu49 xx series tsz02201-0r7r0g300060-1-2 ? 20 15 rohm co., ltd. all rights reserved. 02.nov.2015 rev.012 www.rohm.com tsz22111 ? 15 ? 001 application information explanation of operation for both the open drain type(fig.12)and the cmos output type(fig.1 3), 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 hig h. because the bu48 xx series uses an open drain output type, it is possible to connect a pull-up resistor to v dd or another power supply [the output high voltage ( v out ) in this case becomes v dd or the voltage of the other power supply]. fig.12 (bu48 xx type internal block diagram) fig.13 (bu49 xx type internal block diagram) reference data examples of output rising value(t plh )and output falling value(t phl ) part number t plh [ s] t phl [ s] bu4845 23.3 275.9 bu4945 3.5 354.3 v dd =4. 3v ? 5.1v v dd =5.1v ? 4.3v * this data is for reference only. this figure will vary with the application, so please confirm ac tual operation 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 those in fig.12 and 13). when the power supply is turned on, the output is unsettled from after over the operating limit voltage (v opl ) until t phl . therefore it is possible that the reset signal is not outpu tted when the rise time of v dd is faster than t phl . when v dd is greater than v opl but less than the reset release voltage (v det + v det ), output (v out ) voltages will switch to l. if v dd exceeds the reset release voltage (v det + v det ), then v out switches from l to h (with a delay of t plh ). 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 ). the potential deference 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 flip-flop with power supply fluctuations within this hysteresis width, preventing malfunctions due to noise. q1 vref r1 r2 r3 v out v dd gnd r l v dd reset q2 q1 vref r1 r2 r3 v out v dd gnd reset 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 fig.14 timing waveforms downloaded from: http:///
10 / 15 bu48 xx series bu49 xx series tsz02201-0r7r0g300060-1-2 ? 20 15 rohm co., ltd. all rights reserved. 02.nov.2015 rev.012 www.rohm.com tsz22111 ? 15 ? 001 circuit applications 1) examples of a common power supply detection reset circuit application examples of bu48 xx series (open drain output type) and bu49 xx series (c mos output type) are shown below. case1:the power supply of the microcontroller (v dd 2 ) differs from the power supply of the reset detection (v dd 1 ). use the open drain output type (bu48xx series). attach a load resistance (r l ) between the output and v dd 2. (as shown fig.15) case2:the power supply of the microcontroller (v dd 1) is same as the power supply of the reset detection (v dd 1 ). use cmos output type (bu43xx series) or open drain output type (bu48xx series). attach a load resistance (r l ) between the output and v dd 1. (as shown fig.16) when a capacitance c l for noise filtering for setting the output delay time 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 i n which an or connection between two types of detection vol tage resets the microcontroller. to reset the microcontroller when many independent power s upplies are used in the system, or connect an open dra in output type (bu48xx 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. v dd1 bu48 xx v dd2 gnd c l (capacitor for noise filtering) r l c in r st micro controller c l (capacitor for noise filtering) v dd1 bu49 xx c in gnd r st micro controller fig.15 open drain output type fig.16 cmos output type v dd1 v dd3 gnd r st microcontroller r l v dd2 bu48exxx no.1 bu48xx no.2 fig. 17 downloaded from: http:///
11 / 15 bu48 xx series bu49 xx series tsz02201-0r7r0g300060-1-2 ? 20 15 rohm co., ltd. all rights reserved. 02.nov.2015 rev.012 www.rohm.com tsz22111 ? 15 ? 001 3) examples of the power supply with resistor dividers in applications where the power supply input terminal (vdd) of an ic is connected through resistor dividers, it is possible that a through current will mome ntarily flow into the circuit when the output logic switches, resulting in malfunctions (such as output oscillato ry state). (through-current is a current that momentarily flows from the pow er supply (vdd) to ground (gnd) when the output leve l switches from high to low or vice versa.) fig.18 a voltage drop of [the through-current (i1)] [input resistor (r2)] is caused by the through current, and the input voltage to descends, when the output switches fro m low to high. when the inp ut voltage decreases and falls below the detection voltage, the outpu t voltage switches from high to low. at this time, the through- current stops flowing through output low, and the voltage dro p is eliminated. as a result, the output switches from low to high, which again cau ses the through current to flow and the voltage drop. this process is repeated, resulting in oscill ation. consider the use of bd48xx when the power supply input it with resistor divi ders. fig.19 current consumption vs. power supply voltage * this data is for reference only. the figures will vary with the application, so please confirm actu al operating conditions before use. v out r2 v dd bu48 xx bu49 xx gnd r1 i1 v1 cin c l i dd v dd v det 0 through current 0.001 0.01 0.1 1 10 3 4 5 6 7 8 9 10 idd-peak[ma] vdd[v] vdd - idd peak current ta=25 c bu49xx,bu43xx bu48xx,bu42xx bd52xx bd53xx temp - idd(bu42xx) 0.0 0.5 1.0 1.5 2.0 2.5 -50 -30 -10 10 30 50 70 90 110 130 temp idd peak current[ma] vdd3v vdd6v vdd7v vdd4v downloaded from: http:///
12 / 15 bu48 xx series bu49 xx series tsz02201-0r7r0g300060-1-2 ? 20 15 rohm co., ltd. all rights reserved. 02.nov.2015 rev.012 www.rohm.com tsz22111 ? 15 ? 001 operational notes 1) absolute maximum ratings operating the ic over the absolute maximum ratings may damag e 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 max imum ratings. 2) ground voltage the voltage of the ground pin must be the lowest voltage o f all pins of the ic at all operating conditions. ensure that n o pins are at a voltage below the ground pin at any time, even duri ng transient condition. 3) recommended operating conditions these conditions represent a range within which the expe cted characteristics of the ic can be approximately obtained . the electrical characteristics are guaranteed under the condi tions 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 res ponse 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 moun ted in a wrong orientation or if pins are shorted together . s hort circuit may be caused by conductive particles caught betwe en the pins. 6) operation under strong electromagnetic field operating the ic in the presence of a strong electromagnetic field ma y cause the ic to malfunction. 7) the v dd line impedance might cause oscillation because of the detec tion current. 8) a v dd to gnd capacitor (as close connection as possible) should be use d 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) the recommended value of r l resistor is over 1 0k? for v det =1.5v to 4 .8v, and over 100k? for v det =0.9v to 1.4v. 11) this ic has extremely high impedance terminals. small le ak current due to the uncleanness of pcb surface might cause unexpected operations. also, if the leakage is assu med between the vout terminal and the gnd terminal, the pull up resistor should be less than 1/10 of the assumed leak re sistance. 12) external parameters the recommended parameter range for r l is 1 0k to 1m. there are many factors (board layout, etc) that c an affect characteristics. please verify and confirm using practical appl ications. 13) 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. 14) testing on application boards when testing the ic on an application board, connecting a capa citor 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 remo ving it from the test setup during the inspection process. to prevent damage from static discharge, ground the ic during a ssembly and use similar precautions during transport and storage. 15) rush current when power is first supplied to the ic, rush current may flow i nstantaneously. it is possible that the charge current to the parasitic capacitance of internal photo diode or the in ternal logic may be unstable. therefore, give special consideration to power coupling capacitance, power wiring, width of gnd wiring, and routing of connections. downloaded from: http:///
13 / 15 bu48 xx series bu49 xx series tsz02201-0r7r0g300060-1-2 ? 20 15 rohm co., ltd. all rights reserved. 02.nov.2015 rev.012 www.rohm.com tsz22111 ? 15 ? 001 physical dimension, tape and reel information package name ssop5 downloaded from: http:///
14 / 15 bu48 xx series bu49 xx series tsz02201-0r7r0g300060-1-2 ? 20 15 rohm co., ltd. all rights reserved. 02.nov.2015 rev.012 www.rohm.com tsz22111 ? 15 ? 001 physical dimension, tape and reel information package name sop4 downloaded from: http:///
15 / 15 bu48 xx series bu49 xx series tsz02201-0r7r0g300060-1-2 ? 20 15 rohm co., ltd. all rights reserved. 02.nov.2015 rev.012 www.rohm.com tsz22111 ? 15 ? 001 physical dimension, tape and reel information package name vsof5 downloaded from: http:///
datasheet d a t a s h e e t notice-pga-e rev.00 2 ? 2015 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 hm?s 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 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 depending on ambient temperature. when used in sealed area, c onfirm that it is the use in the range that does not exceed t he maximum junction 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 on a surface-mount products, the flow soldering method must be used on a through hole mount products. if the flow sol dering method is preferred on a surface-mount products, 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-pga-e rev.00 2 ? 2015 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 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 concerned goods might be fallen under listed items of export control prescribed by foreign exchange and foreign trade act, please consult with rohm 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. 2. rohm shall not have any obligations where the claims, actions or demands arising from the co mbination of the products with other articles such as components, circuits, systems or external equipment (including software). 3. 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 products or the informati on contained in this document. pr ovided, however, that rohm will not assert its intellectual property rights or other rights against you or your customers to the extent necessary to manufacture or sell products containing the produc ts, subject to the terms and conditions herein. 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 ? we rev.001 ? 201 5 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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