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| 1/16 www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. middle power class-d speaker amplifiers analog input / btl output class-d speaker amplifier BD5426EFS description BD5426EFS is a 10w + 10w stereo class-d power amplifier ic, developed for space-saving and low heat-generation applications such as low-profile tv sets. the ic employ s state-of-the-art bipolar, cmos, and dmos (bcd) process technology that eliminates turn-on resistance in the output power stage and internal loss due to line resistances up to an ultimate level. with this technology, the ic has achieved high efficiency of 87% (9w + 9w output with 8 ? load). the ic, in addition, employs a compact back-surface heat radiation type power package to achieve low power consumption and low heat generation and eliminates necessity of installing an exter nal radiator, up to a total output of 20w. this product satisfie s both needs for drastic downsizing, low-pr ofile structures and powerful, high-q uality playback of the sound system. features 1) a high efficiency of 87% (9w + 9w output with 8 ? load), which is the highest grade in the industry and low heat-generation. 2) an output of 10w + 10w (13v, with 8 ? load) is allowed without an external heat radiator. 3) driving a lowest rating load of 6 ? is allowed. 4) pop noise upon turning power on/off and power interruption has been reduced. 5) high-quality audio muting is implemented by soft-switching technology. 6) an output power limiter function limits excessive output to speakers. 7) high-reliability design provided with built-in protection circuits against high temperatures, against vcc shorting and gnd shorting, against reduced-voltage, and against applying dc voltage to speaker. 8) a master/slave function allowing synchroniza tion of multiple devices reduces beat noises. 9) adjustment of internal pwm sampling clock frequencie s (250khz to 400khz) allows easy protective measures against unwanted radio emission to am radio band. 10) a compact back-surface heat radiation type power package is employed. htssop-a44(5mm 7.5mm 1.0mm, pitch 0.8mm ) absolute maximum ratings a circuit must be designed and evaluated not to exceed absolute maximum rating in any cases and even momentarily, to prevent reduction in functional performances and thermal destruction of a semiconductor product and secure useful life and reliability. the following values assume ta =25 . for latest values, refer to delivery specifications. parameter symbol ratings unit conditions supply voltage v cc +20 v pin 7, 8, 15, 16, 29, 30, 37, 38, 40 (note 1, 2) power dissipation p d 2.0 w (note 3) 4.5 w (note 4) input voltage for signal pin v in -0.2 ~ +7.2 v pin 1, 44 (note 1) input voltage for control pin v cont -0.2 ~ vcc+0.2 v pin 20, 24 (note 1) input voltage for clock pin v osc -0.2 ~ +7.2 v pin 23 (note 1) operating temperature range t opr -40 ~ +85 storage temperature range t stg -55 ~ +150 maximum junction temperature t jmax +150 (note 1) a voltage that can be applied with reference to gnd (pins 11, 12, 33, 34, and 43) (note 2) pd and tjmax=150 must not be exceeded. (note 3) 70mm 70mm 1.6mmfr4 one-sided glass epoxy board (back copper foil 0%) installed. if used under ta=25 or higher, reduce 16mw for increase of every 1 . the board is provided with thermal via. (note 4) 70mm 70mm 1.6mmfr4 both-sided glass epoxy board (back copper foil 100%) installed. if used under ta=25 or higher, reduce 36mw for increase of every 1 . the board is provided with thermal via. no.10075ebt05
technical note 2/16 BD5426EFS www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. the following values assume ta =25 . check for latest values in delivery specifications. parameter symbol ratings unit conditions supply voltage v cc +10 ~ +16.5 v pin 7, 8, 15, 16, 29, 30, 37, 38, 40 load resistance r l 6 ~ 16 ? (note 5) (note 5) pd should not be exceeded. except otherwise specified t a = 25 , v cc = 12v, f in = 1khz, r g = 0 ? , r l = 8 ? ,mutex="h", ms="l" for latest values, refer to delivery specifications. parameter symbol limits unit conditions whole circuit circuit current 1 (sampling mode) i cc1 25 ma with no signal circuit current 2 (muting mode) i cc2 10 ma mutex = ?l? control circuit ?h? level input voltage v ih 2.3 ~ 12 v sdx, mutex, ms ?l? level input voltage v il 0 ~ 0.8 v sdx, mutex, ms audio circuit voltage gain g v 28 db p o = 1w maximum output power 1 (note 6) p o1 9 w thd+n = 10% maximum output power 2 (note 6) p o2 10 w vcc = 13v, thd+n = 10% total harmonic distortion (note 6) thd 0.1 % p o = 1w, bw=20hz ~ 20khz crosstalk ct 85 db p o = 1w, rg = 0 ? , bw = ihf-a output noise voltage (sampling mode) v no 80 vrms rg = 0 ? , bw = ihf-a residual noise voltage (muting mode) v nom 1 vrms rg = 0 ? , bw = ihf-a, mutex = ?l? internal sampling clock frequency f osc 250 khz ms = ?l? (in master operation) (note 6) the rated values of items above indicate average performances of the device, which largely depend on circuit layouts, components, and power supplies. the reference values are those applicable to the device and components directly installed on a board specif ied by us. technical note 3/16 BD5426EFS www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. (1)under stereo operation (r l =8 ? ) 0.01 0.1 1 10 100 0.001 0.01 0.1 1 10 100 output power (w) thd+n (%) 100hz 1khz 6khz vcc=12v r l =8 bw=2020khz 0.01 0.1 1 10 100 10 100 1000 10000 100000 frequency (hz) thd+n (%) vcc=12v r l =8 po=1w bw=2020khz fig. 1 thd+n output power fig. 2 thd+n frequency 0 5 10 15 20 25 30 35 10 100 1000 10000 100000 frequency (hz) voltage gain (db) vcc=12v r l =8 po=1w l=33h c=0.47f c=0.1f -100 -80 -60 -40 -20 0 10 100 1000 10000 100000 frequency (hz) crosstalk (db) vcc=12v r l =8 po=1w bw=2020khz fig. 3 voltage gain - frequency fig. 4 crosstalk - frequency -100 -80 -60 -40 -20 0 0.001 0.01 0.1 1 10 100 output power (w) crosstalk (db) vcc=12v r l =8 fin=1khz bw=2020khz 0 5 10 15 20 8 1012141618 v cc (v) output power (w) thd=10% r l =8 fin=1khz fig. 5 crosstalk - output power fig. 6 output power - power supply voltage technical note 4/16 BD5426EFS www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 output power (w/ch) efficiency (%) vcc=10v r l =8 fin=1khz 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 output power (w/ch) efficiency (%) vcc=12v r l =8 fin=1khz fig. 7 efficiency - output power fig. 8 efficiency - output power 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 output power (w/ch) efficiency (%) vcc=16.5v r l =8 fin=1khz 0 1 2 3 0 5 10 15 20 25 30 35 40 total output power (w) i cc (a) vcc=10v vcc=12v vcc=16.5v r l =8 fin=1khz fig. 9 efficiency - output power fig. 10 current consumption - output power fig. 11 current consumption - power supply voltage fig. 12 fft of output noise voltage 0 10 20 30 40 50 60 70 80 90 100 8 1012141618 v cc (v) i cc (ma) sampling mute r l =8 o??r without signal -140 -120 -100 -80 -60 -40 -20 0 10 100 1000 10000 100000 frequency (hz) noise fft (dbv) vcc=12v r l =8 o??r bw=2020khz without signal technical note 5/16 BD5426EFS www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. electrical characteristic curves (reference data) ? continued mutex pin 20 tm pin 26 speaker output 10msec/div 2v/div 5v/div 10v/div vcc=12v r l =8 po=500mw fin=500hz m utex pin 20 tm p in 26 10msec/div 2v/div 5v/div 10v/div vcc=12v r l =8 po=500mw fin=500hz speaker output fig. 13 wave form when releasing soft-mute fig. 14 wave form when activating soft-mute vcca vhold pin 27 vcc=12v r l =8 po=500mw fin=3khz 20msec/div 2v/div 5v/div 5v/div tm pin 26 vcca vhold pin 27 vcc=12v r l =8 po=500mw fin=3khz 2msec/div 2v/div 5v/div 5v/div tm pin 26 speaker output speaker output fig. 15 wave form on instantaneous power interruption (20msec / div) fig. 16 wave form on instantaneous power interruption (2msec / div) speaker output vcc=12v r l =8 po=5w thd+n=10 % fin=1khz r2=91k r3=22k 200 sec/div 5v/div soft clip soft clip fig. 17 wave form on output power limiter function (po = 5w) technical note 6/16 BD5426EFS www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. (2)under stereo operation(r l =6 ? ) 0 5 10 15 20 25 8 1012141618 v cc (v) output power (w) thd=10% r l =6 fin=1khz fig. 18 output power - power supply voltage 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 25 output power (w/ch) efficiency (%) vcc=10v r l =6 fin=1khz 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 25 output power (w/ch) efficiency (%) vcc=12v r l =6 fin=1khz fig. 19 efficiency - output power fig. 20 efficiency - output power 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 25 output power (w/ch) efficiency (%) vcc=16.5v r l =6 fin=1khz 0 1 2 3 4 0 5 10 15 20 25 30 35 40 45 50 total output power (w) icc (a) vcc=10v vcc=12v vcc=16.5v r l =6 fin=1khz fig. 21 efficiency - output power fig. 22 current consumption - output power dotted lines of the graphs indicate c ontinuous output power to be obtained on musical signal source or by installing additional heat sinks. technical note 7/16 BD5426EFS www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. BD5426EFS (max 18.85 include burr ) 18.5 0.1 lot no. type 1pin mark ( 6.0) ( 5.0) 0.85 44 23 1 22 1.0 max ( unit: mm ) 0.8 0.75 0.1 0.95 0.2 0.85 0.05 0.0 8 0.05 in1 pl m t1 pl m t2 bsp1p vccp1p vccp1p ou t1p ou t1p gndp1 gndp1 ou t1n ou t1n vccp1n bsp1n warning error mutex n.c. n.c. in2 gnda fila filp vcca b sp2p vccp2p vccp2p out2p out2p gndp2 gndp2 out2n out2n vccp2n vccp2n b sp2n vhold tm rosc ms osc vccp1n output dc v oltage protection output short protection 7 8 9 10 6 2 3 4 5 1 11 12 13 14 15 16 17 18 19 20 21 22 25 24 23 28 27 26 30 29 31 32 33 34 35 36 37 38 39 40 41 42 43 44 driver 1p driver 1n pow er limit sof t m ute filp pw m 1 pw m 2 driver 2p driver 2n fila error mute control under v oltage protection high temperature protection ramp generator clock control n.c. n.c. protections & l ogic pow er- of f detector vcca gnda warning pl m t3 pl m t4 fig. 23 pin assignment diagram fig. 24 outer dimensions and inscriptions of htssop-a44 package technical note 8/16 BD5426EFS www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. no. symbol pin voltage pin description internal equalizing circuit 1 44 in1 in2 3.5v ch1 analog signal input pin ch2 analog signal input pin input audio signal via a capacitor. 40 1 /44 43 20k 2 plmt1 3.5v voltage-to-current conversion pin for output power limiter function connect a register. 40 43 2 3 plmt2 - current-to-voltage conversion pin for output power limiter function connect a register. 40 43 3 4 plmt3 - current-to-voltage conversion pin for output power limiter function connect a register. 40 4 43 5 plmt4 3.5v bias pin for output power limiter function connect a register and a capacitor. 40 43 5 technical note 9/16 BD5426EFS www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. no. symbol pin voltage pin description internal equalizing circuit 6 bsp1p - ch1 positive bootstrap pin connect a capacitor. 6 7,8 910 11 12 15 , 16 17 13,14 11,12 7, 8 vccp1p vcc ch1 positive power system power supply pin 9, 10 out1p vcc ~ 0v ch1 positive pwm signal output pin connect with output lpf. 11, 12 gndp1 0v ch1 power system gnd pin 13, 14 out1n vcc ~ 0v ch1 negative pwm signal output pin connect with output lpf. 15, 16 vccp1n vcc ch1 negative power system power supply pin 17 bsp1n - ch1 negative bootstrap pin connect a capacitor. 18 warning h: 5v l: 0v warning output pin pin to notify operation warning. h: under warning l: normal operation connect a resister. 40 43 18 2k 19 error h: 5v l: 0v error output pin a pin for notifying operation errors. h: error l: normal operation connect a resister. 40 43 19 2k technical note 10/16 BD5426EFS www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. no. symbol pin voltage pin description internal equalizing circuit 20 mutex - audio mute control pin h: mute off l: mute on 40 43 20 120 k 80k 21, 22 n.c. - n.c. pin nothing is connected with ic internal circuit. 23 osc - sampling clock signal input/output pin when using two or more sampling clocks, connect via a capacitor. 40 43 23 24 ms - master/slave switching pin switching of master/slave functions on a sampling clock signal. h: slave operation l: master operation 40 43 24 1 20k 80k 25 rosc 5.6v internal pwm sampling clock frequency setting pin usually the pin is used open. to adjust an internal sampling clock frequency, connect a resister. 40 43 25 32k technical note 11/16 BD5426EFS www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. no. symbol pin voltage pin description internal equalizing circuit 26 tm 0 ~ 5v audio muting constant setting pin connect a capacitor. 40 43 26 27 vhold 0.68vcc instantaneous power interruption detecting voltage setting pin connect a capacitor. to adjust a detecting voltage, connect a resister. 40 43 27 180k 39 0 k 28 bsp2n - ch2 negative bootstrap pin connect a capacitor. 33 ,34 37 ,38 39 35,36 33 , 34 29,30 28 31,32 29, 30 vccp2n vcc ch2 negative power system power supply pin 31, 32 out2n vcc ~ 0v ch2 negative pwm signal output pin connect an output lpf. 33, 34 gndp2 0v ch2 power system gnd pin 35, 36 out2p vcc ~ 0v ch2 positive pwm signal output pin connect an output lpf. 37, 38 vccp2p vcc ch2 positive power system power supply pin 39 bsp2p - ch2 positive bootstrap pin connect a capacitor. technical note 12/16 BD5426EFS www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. no. symbol pin voltage pin description internal equalizing circuit 40 vcca vcc analog system power pin 41 filp vcc+35 12 pwm system bias pin connect a capacitor. 40 43 41 42 fila 3.5v analog signal system bias pin connect a capacitor. 40 43 42 43 gnda 0v analog system power supply pin technical note 13/16 BD5426EFS www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. ? vcc=10v ~ 16.5v gnda vcca gnda input vccp gndp sp ch1 mut e warning output sl a v e master clk i /o c26 output dc v oltage protection output short protection 7 8 9 10 6 2 3 4 5 1 11 12 13 14 15 16 17 18 19 20 21 22 25 24 23 28 27 26 30 29 31 32 33 34 35 36 37 38 39 40 41 42 43 44 driver 1p driver 1n pow er limit sof t m ute filp pw m 1 pw m 2 driver 2p driver 2n fila error mute control under v oltage protection high temperature protection ramp generator clock control ch-1 c6 l9 l13 c17 c9 c13 n.c. n.c. n.c. n.c. c8 c10 vccp gndp sp ch2 c39 l35 l31 c28 c35 c31 c38 c32 c23 input ch-2 2.2f c44 r2 r3 r4 c5 c42 c40 c43 c37 c29 c7 c15 gndd c41 c27 protections & logic gnda r18 error output r19 pow er- of f detector vcca gnda warning open 2.2 f 10 f 0.1 f 1f 10 f 0.68 f 10 f 0.1 f 0.1 f 0.15 f 0.15 f 0.68 f 22 h 22 h 0.68 f 3.3 f 0.1 f 0.1 f 100k 100k 0.68 f 22 h 0.15 f 0.1 f 0.15 f 0.68 f 22 h 10 f 0.1 f 0.68 f 22k 22k 0.1 f 22k c1 6 6 fig. 25 circuit diagram of stereo operation with 6 ? load technical note 14/16 BD5426EFS www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. table 1 bom list of stereo operation with 6 ? load no. item part number vendor configuration value rated voltage tolerance temperature characteristics quantity reference mm inch 1 ic BD5426EFS rohm htssop-a44 - - - - 1 ic1 2 c grm219b31e684ka88d murata 2012 0805 0.68f 25v 10% 10% 4 c6, c17, c28, c39 3 c grm188r11h104ka93 murata 1608 0603 0.1f 50v 10% 10% 5 c7, c15, c29, c37, c40 4 c grm31mb11h154ka01b murata 3216 1206 0.15f 50v 10% 10% 4 c9, c13, c31, c35 5 c 25st225m3216 rubycon 3225 1210 2.2f 25v 20% 5% 2 c1, c44 6 c 50st684m3225 rubycon 3225 1210 0.68f 50v 20% 5% 2 c10, c32 7 c grm21bb31e335ka75 murata 2012 0805 3.3f 25v 10% 10% 1 c27 8 c grm188b11e104ka murata 1608 0603 0.1f 25v 10% 10% 3 c5, c23, c26 9 c grm21bb11c105ka murata 2012 0805 1f 16v 10% 10% 1 c41 10 c grm21bb31c106ke15 murata 2012 0805 10f 16v 10% 10% 1 c42 11 c 25svpd10m sanyo 6666 2626 10f 25v 20% 25% 3 c8, c38, c43 12 r mcr01mzpf2202 rohm 1005 0402 22k ? 50v 1% 200ppm/ 3 r2, r3, r4 13 r mcr01mzpf1003 rohm 1005 0402 100k ? 50v 1% 200ppm/ 2 r18, r19 no. item part number vendor configuration value tolerance dc resistance rated dc current quantity reference mm 14 l 7g09b-220m sagami 10910 22h2 20% 44m ? max. 4.1a max. 2 l9, l13, l31, l35 technical note 15/16 BD5426EFS www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 1. about absolute maximum ratings if an applied voltage or an operating temperature exceeds an absolute maximum rating, it may cause destruction of a device. a result of destruction, whether it is short mode or open mode, is not predictable. ther efore, provide a physical safety measure such as fuse, against a special mode that may violate conditions of absolute maximum ratings. 2. about power supply line as return of current regenerated by bac k emf of output coil happens, take steps such as putting capacitor between power supply and gnd as a electric pathway for the regenerat ed current. be sure that there is no problem with each property such as emptied capacity at lo wer temperature regarding electrolytic capacitor to decide capacity value. if the connected power supply does not have suff icient current absorption capacity, rege nerative current will cause the voltage on the power supply line to rise, which combined with the product and its peripheral circuitry may exceed the absolute maximum ratings. it is recommended to implement a physical safety measure such as the insertion of a voltage clamp diode between the power supply and gnd pins. 3. potential of gnd (11, 12, 33, 34, and 43 pins) potential of the gnd terminal must be t he lowest under any operating conditions. 4. about thermal design perform thermal design with sufficient margins, in consideration of maximum power dissipation pd under actual operating conditions. this product has an exposed fram e on the back of the package, and it is assumed that the frame is used with measures to improve efficiency of heat dissi pation. in addition to front surface of board, provide a heat dissipation pattern as widely as possible on the back also. a class-d power amplifier has heat dissipation efficiency far higher than that of conventi onal analog power amplifier and generates less heat. however, extra attention must be paid in thermal design so that a power dissipation pdiss should not exceed the maximum power dissipation pd. maximum power dissipation ?? w ta-t pd aj jmax ? tjmax: maximum temperature junction = 150[ ] ta: operating ambient temperature [ ] ja: package thermal resistance [ /w] po: output power [w] : efficiency power dissipation ?? w 1- 1 pp o diss ? ? ? ? ? ? ? ? ? ? ? 5. about operations in strong electric field note that the device may malfuncti on in a strong electric field. 6. thermal shutdown (tsd) circuit this product is provided with a built-in thermal shutdown circuit. when the the rmal shutdown circuit operates, the output transistors are placed under open status. the thermal shutdown circuit is primarily intended to shut down the ic avoiding thermal runaway under abnormal conditions with a chip temperature exceeding tjmax = 150 , and is not intended to protect and secure an electrical appliance. accordingly, do not use this circuit function to protect a customer's electrical appliance. 7. about shorting between pins and installation failure be careful about direction and displacement of an lsi when installing it onto the board. faulty installation may destroy the lsi when the device is energized. in addition, a foreig n matter getting inbetween lsi pins, pins and power supply, and pins and gnd may cause shorting and destruction of the lsi. 8. about power supply startup and shutdown when starting up a power supply, be sure to place the mutex pin (pin 20) at ?l? level. when shutting down a power supply also, be sure to place the pin at ?l? level. those processes reduce pop noises generated upon turning on and off the power supply. in addition, all power supply pins must be started up and shut down at the same time. 9. about warning output pin (pin 18) and error output pin (pin 19) a warning flag is output from the warni ng output pin upon operati on of the high-temperatur e protection function and under-voltage protection function. and an error flag is output from the erro r output pin upon operation of vcc/gnd shorting protection function and speaker dc voltage applying protection function. these flags are the function which the condition of this product is shown in. the use which aimed at the protection except for this product is prohibition. 10. about n.c. pins (pins 21 and 22) the n.c. (non connection) pins are not c onnected with an internal circuit. leave the pins open or connect them to gnd. technical note 16/16 BD5426EFS www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. b d 5 4 2 6 e f s -e 2 part no. part no. package efs:htssop-44 packaging and forming specification e2: embossed tape and reel ? order quantity needs to be multiple of the minimum quantity. r1010 a www.rohm.com ? 2010 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specified herein is subject to change for improvement without notice. the content specified herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specifications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. great care was taken in ensuring the accuracy of the information specified in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no responsibility for such damage. the technical information specified herein is intended only to show the typical functions of and examples of application circuits for the products. rohm does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by rohm and other parties. rohm shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. the products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specified in this document are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any product, such as derating, redunda ncy, fire control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospac e machinery, nuclear-reactor controller, fuel- controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intended to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specified herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law. |
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