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SMA6860MZ-ds, rev. 5 sanken electric co., ltd. http://www.sanken-ele.co.jp/en/ description the SMA6860MZ inverter power module (ipm) series provides a robust, highly-integrated solution for optimally controlling 3-phase motor power inverter systems and variable speed control systems used in energy-conserving designs to drive motors of residential and commercial appliances. these ics take 230 vac input voltage, and up to 2.5 a (continuous) output current. they can withstand voltages of up to 500 v (mosfet breakdown voltage). the SMA6860MZ power package includes an ic with all of the necessary power elements (six mosfets), pre-driver ics (two), and bootstrap diodes (three), needed to configure the main circuit of an inverter. this enables the main circuit of the inverter to be configured with fewer external components than traditional designs. applications include residential white goods (home applications) and commercial appliance motor control: ? air conditioner fan ? small ventilation fan ? dishwasher pump features and benefits ? built-in pre-drive ic ? mosfet power element ? alleviate noise generation by adjusting an internal resistor ? cmos compatible input (5 v) ? high-side gate driver using bootstrap circuit or floating power supply ? built-in protection circuit for controlling power supply voltage drop (uvlo on vb and vcc) ? overcurrent protection (ocp), overcurrent limiting (ocl), and thermal shutdown (tsd) ? output of fault signal during operation of protection circuit ? output current 1.5, 2, or 2.5 a ? small sip (sma 24-pin) high voltage 3-phase motor drivers figure 1. driver block diagram functional block diagram low-side driver uvlo uvlo uvlo uvlo input logic input logic (ocp reset ) uvlo thermal shutdown sd1 vcc1 vb1 vb2 vb3 vbb u v w1 w2 ls 2 ls 1 sd2 com2 lin3 lin2 lin1 vcc 2 com1 hin3 hin2 hin1 high-side level shift driver ocl ocp and ocl rc ocp packages: power sip leadform 2451 leadform 2452 not to scale a. s d 1 and s d 2 terminals are used for both input and output. b. s d 1 , s d 2 , and o c l terminals are open-collector output. rc terminal is open-drain output. c. blanking time (t blank ) is used in overcurrent limiting (ocl) and overcurrent protection (ocp). if the time exceeds the limit, the signal will be output (open-collector output turns on) on the s d 2 pin, and protection operation will start up. SMA6860MZ series
2 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 selection guide part number mosfet breakdown voltage, v dss (min) (v) output current continuous, i o (max) (a) pulsed, i op (max) (a) sma6861mz 250 2 3.0 sma6862mz 500 1.5 2.25 sma6863mz 500 2.5 3.75 sma6864mz 250 2.5 3.75 sma6865mz 500 2.5 3.75 all performance characteristics given are typical values for circuit or system baseline design only and are at the nominal operating voltage and an ambient temperature, t a , of 25c, unless oth er wise stated. absolute maximum ratings , valid at t a = 25c characteristic symbol remarks rating unit mosfet breakdown voltage v dss sma6861mz v cc = 15 v, i d = 100 a, v in = 0 v 250 v sma6862mz 500 v sma6863mz 500 v sma6864mz 250 v sma6865mz 500 v logic supply voltage v cc between vcc and com 20 v bootstrap voltage v bs between vb and hs (u,v, and w phases) 20 v output current, continuous i o sma6861mz 2 a sma6862mz 1.5 a sma6863mz 2.5 a sma6864mz 2.5 a sma6865mz 2.5 a output current, pulsed i op sma6861mz pw 100 s, duty cycle = 1% 3.0 a sma6862mz 2.25 a sma6863mz 3.75 a sma6864mz 3.75 a sma6865mz 3.75 a input voltage v in hinx and linx pins ?0.5 to 7 v pull-up voltage for shutdown pins v sdx sdx pins 7 v pull-up voltage for overcurrent limiting pin v ocl 7v allowable power dissipation p d t c = 25c 28 w thermal resistance (junction to case) r jc all elements operating 4.46 c/w thermal resistance (junction to ambient) r ja all elements operating 31.25 c/w case operating temperature t cop ?20 to 100 c storage temperature t stg ?40 to 150 c
3 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 recommended operating conditions characteristic symbol remarks min. typ. max. units main supply voltage v bb sma6861mz between vbb and ls ? ? 200 v sma6862mz ? ? 400 v sma6863mz ? ? 400 v sma6864mz ? ? 200 v sma6865mz ? ? 400 v v bb snubber capacitor c sb 0.01 ? 0.1 f logic supply voltage v cc between vcc and com 13.5 15 16.5 v zener voltage for vccx pins v z between vcc and com 18 ? 20 v pull-up voltage v sdx, v ocl 4.5 5 5.5 v pull-up resistor s d 2 pin r up2 3.3 ? 10 k pull-up resistor o c l pin r up1 1 ? 10 k pull-up resistor rc pin r r 33 ? 390 k capacitor s d x and o c l pins c sdx 1 ? 10 nf capacitor rc pin c c 1 ? 4.7 nf dead time t dead t j = ?20c to 150c 1.5 ? ? s minimum input pulse width i inmin(on) t j = ?20c to 150c 0.5 ? ? s i inmin(off) t j = ?20c to 150c 0.5 ? ? s switching frequency f pwm ? ? 20 khz
4 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 vcc 2 lin1 vcc 1 hin 1 com 1 vb1 ho 3 hs3 lin2 lin3 sd 2 com 2 lo 1 lo 2 lo 3 m mcu 15 v hvic lvic hin 2 hin 3 vb2 vb3 ho 2 ho 1 hs1 hs2 10 13 4 5 6 7 8 24 12 11 13 16 17 14 23 22 19 18 20 21 ocl 2 sd1 9 rc 15 r up1 5v 5v r up2 d z1 d z2 rs 5v c c r r c sd1 c sd2 c sb SMA6860MZ typical application diagram note: the external electrolytic capacitors should be placed as close to the ic as possible, in order to avoid malfunctions from external noise interference. put a ceramic capacitor in parallel with the electrolytic capacitor if further reduction of noise susceptibility is necessary. shows configuration for implementing current limiter function: o c l and s d 1 pins tied together
5 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 vcc2 lin1 vcc1 hin1 com1 vb1 ho3 hs3 lin2 lin3 sd2 com2 lo1 lo2 lo3 m 15v hvic lvic hin2 hin3 vb2 vb3 ho2 ho1 hs1 hs2 10 13 4 5 6 7 8 24 12 11 13 16 17 14 23 22 19 18 20 21 ocl 2 sd1 9 rc 15 rup1 5v zd zd rs vrc cc rr c s d r u p typical application diagram note: the external electrolytic capacitors should be placed as close to the ic as possible, in order to avoid malfunctions from external noise interference. put a ceramic capacitor in parallel with the electrolytic capacitor if further reduction of noise susceptibility is necessary. shows configuration without current limiter function: s d 1 and s d 2 pins tied together
6 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 electrical characteristics, valid at t a =25c, unless otherwise noted characteristics symbol conditions min typ max units logic supply current i cc v cc = 15 v, t c = ?20c to 125c ? 2.7 5.0 ma bootstrap supply current i bx v bx = 15 v, v hin = 5 v, t c = ?20c to 125c ? 135 380 a input voltage v ih v cc = 15 v ? 2.9 3.4 v v il v cc = 15 v 1.6 2.1 ? v input voltage hysteresis v ihys v cc = 15 v ? 0.8 ? v input current i in v in = 5 v ? 230 500 a undervoltage lock out v uvhl high side, between vbx and u, v, or w 9.0 10.0 11.0 v v uvhh 9.5 10.5 11.5 v v uvhhys high side, hysteresis ? 0.5 ? v v uvll low side, between vcc2 and com2 10.0 11.0 12.0 v v uvlh 10.5 11.5 12.5 v v uvlhys low side, hysteresis ? 0.5 ? v s d x and o c l output voltage v sdx(on) , v ocl v sdx = v ocl = 5 v, r upx = 3.3 k ? ? 0.6 v overtemperature detectionthreshold temperature (activation and deactivation) t dh v cc = 15 v, high-side and low side 120 135 150 c t dl 100 115 130 c t dhys ?20?c overcurrent protection trip voltage v trip v cc = 15 v 0.9 1.0 1.1 v overcurrent limit reference voltage v lim v cc = 15 v 0.5035 0.53 0.5565 v overcurrent protection hold time t p v rc = 5 v, r r = 360 k , c c = 0.0047 f ? 2.0 ? ms blanking time t blank v cc = 15 v ? 2.0 ? s bootstrap diode leakage current i lbd sma6861mz v r = 250 v ? ? 10 a sma6862mz v r = 500 v ? ? 10 a sma6863mz v r = 500 v ? ? 10 a sma6864mz v r = 250 v ? ? 10 a sma6865mz v r = 500 v ? ? 10 a bootstrap diode forward voltage v fbd i f = 0.05 a ? 0.8 1.3 v bootstrap diode recovery time t rrb i f / i rp = 100 ma / 100 ma ? 70 ? ns bootstrap diode series resistor r bd 168 210 252 mosfet breakdown voltage v dss sma6861mz v cc = 15 v, i d = 100 a, v in = 0 v 250 ? ? v sma6862mz 500 ? ? v sma6863mz 500 ? ? v sma6864mz 250 ? ? v sma6865mz 500 ? ? v mosfet leakage current i dss sma6861mz v cc = 15 v, v ds = 250 v, v in = 0 v ? ? 100 a sma6862mz v cc = 15 v, v ds = 500 v, v in = 0 v ? ? 100 a sma6863mz v cc = 15 v, v ds = 500 v, v in = 0 v ? ? 100 a sma6864mz v cc = 15 v, v ds = 250 v, v in = 0 v ? ? 100 a sma6865mz v cc = 15 v, v ds = 500 v, v in = 0 v ? ? 100 a continued on the next page?
7 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 electrical characteristics (continued), valid at t a =25c, unless otherwise noted characteristics symbol conditions min typ max units mosfet on state resistance r ds(on) sma6861mz v cc = 15 v, i d = 1.0 a, v in = 5 v ? 1.25 1.5 sma6862mz v cc = 15 v, i d = 0.75 a, v in = 5 v ? 3.2 4.0 sma6863mz v cc = 15 v, i d = 1.25 a, v in = 5 v ? 2.0 2.4 sma6864mz v cc = 15 v, i d = 1.25 a, v in = 5 v ? 0.35 0.5 sma6865mz v cc = 15 v, i d = 1.25 a, v in = 5 v ? 1.4 1.7 mosfet diode forward voltage v sdf sma6861mz v cc = 15 v, i d = 1.0 a, v in = 5 v ? 1.1 1.5 v sma6862mz v cc = 15 v, i d = 0.75 a, v in = 5 v ? 1.1 1.5 v sma6863mz v cc = 15 v, i d = 1.25 a, v in = 5 v ? 1.1 1.5 v sma6864mz v cc = 15 v, i d = 1.25 a, v in = 5 v ? 0.8 1.2 v sma6865mz v cc = 15 v, i d = 1.25 a, v in = 5 v ? 1.0 1.5 v
8 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 sma6861mz switching characteristics, valid at t a =25c, unless otherwise noted characteristics symbol conditions min typ max units switching time, high side t dh(on) v bb = 150 v, v cc = 15 v, i d = 2.0 a, 0 v v in 5 v, inductive load ? 660 ? ns t rh ?25?ns t rrh ?50?ns t dh(off) ? 560 ? ns t fh ?10?ns switching time, low side t dl(on) v bb = 150 v, v cc = 15 v, i d = 2.0 a, 0 v v in 5 v , inductive load ? 540 ? ns t rl ?25?ns t rrl ?45?ns t dl(off) ? 500 ? ns t fl ?15?ns sma6862mz switching characteristics, valid at t a =25c, unless otherwise noted characteristics symbol conditions min typ max units switching time, high side t dh(on) v bb = 300 v, v cc = 15 v, i d = 1.5 a, 0 v v in 5 v, inductive load ? 720 ? ns t rh ?60?ns t rrh ? 110 ? ns t dh(off) ? 690 ? ns t fh ?30?ns switching time, low side t dl(on) v bb = 300 v, v cc = 15 v, i d = 1.5 a, 0 v v in 5 v, inductive load ? 670 ? ns t rl ?70?ns t rrl ? 120 ? ns t dl(off) ? 590 ? ns t fl ?30?ns sma6863mz switching characteristics, valid at t a =25c, unless otherwise noted characteristics symbol conditions min typ max units switching time, high side t dh(on) v bb = 300 v, v cc = 15 v, i d = 2.5 a, 0 v v in 5 v, inductive load ? 820 ? ns t rh ? 100 ? ns t rrh ? 120 ? ns t dh(off) ? 740 ? ns t fh ?30?ns switching time, low side t dl(on) v bb = 300 v, v cc = 15 v, i d = 2.5 a, 0 v v in 5 v, inductive load ? 790 ? ns t rl ? 110 ? ns t rrl ? 130 ? ns t dl(off) ? 700 ? ns t fl ?30?ns
9 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 sma6864mz switching characteristics, valid at t a =25c, unless otherwise noted characteristics symbol conditions min typ max units switching time, high side t dh(on) v bb = 150 v, v cc = 15 v, i d = 2.5 a, 0 v v in 5 v, inductive load ? 730 ? ns t rh ?40?ns t rrh ?75?ns t dh(off) ? 640 ? ns t fh ?20?ns switching time, low side t dl(on) v bb = 150 v, v cc = 15 v, i d = 2.5 a, 0 v v in 5 v, inductive load ? 660 ? ns t rl ?40?ns t rrl ?55?ns t dl(off) ? 600 ? ns t fl ?30?ns sma6865mz switching characteristics, valid at t a =25c, unless otherwise noted characteristics symbol conditions min typ max units switching time, high side t dh(on) v bb = 300 v, v cc = 15 v, i d = 2.5 a, 0 v v in 5 v, inductive load ? 750 ? ns t rh ?60?ns t rrh ? 100 ? ns t dh(off) ? 680 ? ns t fh ?20?ns switching time, low side t dl(on) v bb = 300 v, v cc = 15 v, i d = 2.5 a, 0 v v in 5 v, inductive load ? 640 ? ns t rl ?65?ns t rrl ? 100 ? ns t dl(off) ? 560 ? ns t fl ?20?ns v ds i d switching characteristics definitions
10 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 truth table mode hin lin h-side mosfet l-side mosfet normal l l off off h l on off l h off on h h on on tsd l l off off h l on off l h off off h h on off ocp l l off off h l on off l h off off h h on off ocl ( = l ) 1 l l off off h l off off l h off on h h off on uvlo ( vcc ) 2 l l off off h l off off l h off off h h off off uvlo ( vb ) 3 l l off off h l off off l h off on h h off on sd2 ( = l ) l l off off h l on off l h off off h h on off 1 the ocl feature is enabled when the o c l and s d 1 pins are tied together externally. if these pins are not tied when an ocl condition occurs, device operation continues in normal mode. 2 returning to the normal mode of operation from a v cc uvlo condition, a high-side mosfet resumes switching on the rising edge of an hinx input. on the other hand, a low-side mosfet resumes switching on the first logic high of a linx input after release of the uvlo condition. 3 returning to the normal mode of operation from a v b uvlo condition, a high-side mosfet resumes switching on the rising edge of an hinx input. note: to prevent a shoot-through condition, the external microcontroller should not drive hinx = linx = h at the same time.
11 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 lin lo ls1 sd2 t blank rc slope defined by r c , c c ocp release tp 3.5 v v trip ocp timing diagram low-side logic tsd timing diagram open-collector output transistor turned on
12 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 lin sd2 vcc2 uvll uvlh lo uvlh open-collector output transistor turned on high-side uvlo timing diagram low-side uvlo timing diagram
13 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 ocl timing diagram o c l and s d 1 pins connected externally; current-limiter function in use lin (a) lo ls1 sd2 rc v trip (1 v) v ocl (0.5 v) 3.5 v ocl, sd1 2 s v th (2.1 v) v th (2.1 v) v th (2.9 v) v th (2.9 v) v th (2.9 v) 2 s 5 s 2 s t = 50 c sd1 t = 50 c c t = r up1 c sd1 t = r up1 c sd1 t = r r c c t = r up2 c sd2 hin (a) ho 3.3 s3.3 s low-side shutdown high-side shutdown enable resumption of high-side operation at next hin rising edge enable resumption of low-side operation at next lin rising edge high-side shutdown t = 50 c sd2 (a) each hinx or linx pin drives a independent side of a phase, that is, the high-side and the low-side swtiching devices of a u, v, or w motor coil phase are each driven separately, by the corresponding dedicated hinx or lin x
14 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 shut down timing diagram s d 1 and s d 2 pins connected externally; current-limiter function not in use slope defined by r c , c c lin (a) hin (a) (a) each hinx or linx pin drives a independent side of a phase, that is, the high-side and th e low-side swtiching devices of a u, v, or w motor coil phase are each driven separately, by th e corresponding dedicated hinx or linx input
15 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 1 3 5 7 9 11131517192123 2 4 6 8 10 12 14 16 18 20 22 24 chamfer side leadform 2452 leadform 2451 chamfer on opposite side 1357911131517192123 24681012141618202224 pin-out diagrams terminal list table number name function 1 vb1 high side bootstrap terminal (u phase) 2 vb2 high side bootstrap terminal (v phase) 3 vb3 high side bootstrap terminal (w phase) 4 vcc1 high side logic supply voltage 5 s d 1 high side shutdown input and uvlo fault signal output 6 com1 high side logic gnd terminal 7 hin3 high side input terminal (w phase) 8 hin2 high side input terminal (v phase) 9 hin1 high side input terminal (u phase) 10 vbb main supply voltage 11 w1 output of w phase (connect to w2 externally) 12 v output of v phase 13 w2 output of w phase (connect to w1 externally) 14 ls2 low side source terminal (connect to ls1 externally) 15 rc overcurrent protection hold time adjustment input terminal 16 ls1 low side source terminal (connect to ls2 externally) 17 o c l output for overcurrent limiting 18 lin3 low side input terminal (w phase) 19 lin2 low side input terminal (v phase) 20 lin1 low side input terminal (u phase) 21 com2 low side gnd terminal 22 s d 2 low side shutdown input and overtemperature, overcurrent, and uvlo fault signals output 23 vcc2 low side logic supply voltage 24 u output of u phase
16 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 1.27 0.1 24681012141618202224 1 3 5 7 9 11 13 15 17 19 21 23 4 0.2 10.2 0.2 r0.65 min pcb surface 4.4 ref 2.2 0.7 bsc 2.2 0.7 bsc 3 0.5 bsc 1.2 0.1 bsc a c c measured at pin exit from case maximum dambar protrusion 0.6 +0.15 ? 0.05 0.7 +0.15 ? 0.05 0 to 0.55 0 to 0.55 a 1.27 0.6 29.21 0.7 b b measured at pin tips 31 0.2 31.3 0.2 gate protrusion view a view a 2x gate protrusion 2x exposed tie bar leadform: 2451 terminal core material: cu terminal plating: ni and solder (sn 97.5%, ag 2.5%) plating case material: epoxy resin dimensions in millimeters branding area branding codes (exact appearance at manufacturer discretion): 1st line, lot: ymdd # where: y is the last digit of the year of manufacture m is the month ( 1 to 9, o, n, d ) dd is the date # is the tracking letter 2nd line, type: sma686xmz leadframe plating pb-free. device composition complies with the rohs directive. package outline drawing leadform 2451 dual rows, 24 alternating pins; pins bent 90 for horizontal case mounting; pin #1 in outer row
17 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 leadform: 2452 terminal core material: cu terminal plating: ni recommended attachment: solder dip (sn-ag-cu) dimensions in millimeters branding area branding codes (exact appearance at manufacturer discretion): 1st line, lot: ymdd # where: y is the last digit of the year of manufacture m is the month ( 1 to 9, o, n, d ) dd is the date # is the tracking letter 2nd line, type: sma686xmz 31 0.2 31.3 0.2 gate protrusion 1.27 0.5 0.6 +0.15 ? 0.05 0.5 +0.15 ? 0.05 9.5 +0.7 ? 0.5 10.2 0.2 a a measured at pin tips 2 4 6 8 1012141618202224 1 3 5 7 9 11 13 15 17 19 21 23 4 0.2 r1 ref 4.5 ref 4.5 0.5 5 0.5 1.2 0.1 bsc view a deflection at pin bend 0.7 max 0.7 max view a 2x gate protrusion 2x exposed tie bar 29.21 0.6 package outline drawing leadform 2452 dual rows, 24 alternating pins; vertical case mounting; pin #1 opposite chamfer side leadframe plating pb-free. device composition complies with the rohs directive.
18 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 because reliability can be affected adversely by improper storage environments and handling methods, please observe the following cautions. cautions for storage ? ensure that storage conditions comply with the standard temperature (5c to 35c) and the standard relative humidity (around 40 to 75%); avoid storage locations that experience extreme changes in temperature or humidity. ? avoid locations where dust or harmful gases are present and avoid direct sunlight. ? reinspect for rust on leads and solderability of products that have been stored for a long time. cautions for testing and handling when tests are carried out during inspection testing and other standard test periods, protect the products from power surges from the testing device, shorts between adjacent products, and shorts to the heatsink. remarks about using silicone grease with a heatsink ? when silicone grease is used in mounting this product on a heatsink, it shall be applied evenly and thinly. if more silicone grease than required is applied, it may produce stress. ? volatile-type silicone greases may permeate the product and produce cracks after long periods of time, resulting in reduced heat radiation effect, and possibly shortening the lifetime of the product. ? our recommended silicone greases for heat radiation purposes, which will not cause any adverse effect on the product life, are indicated below: type suppliers g746 shin-etsu chemical co., ltd. yg6260 momentive performance materials sc102 dow corning toray silicone co., ltd. soldering ? when soldering the products, please be sure to minimize the working time, within the following limits: 2605c 10 s 3805c 5 s ? soldering iron should be at a distance of at least 1.5 mm from the body of the products electrostatic discharge ? when handling the products, operator must be grounded. grounded wrist straps worn should have at least 1 m of resistance to ground to prevent shock hazard. ? workbenches where the products are handled should be grounded and be provided with conductive table and floor mats. ? when using measuring equipment such as a curve tracer, the equipment should be grounded. ? when soldering the products, the head of soldering irons or the solder bath must be grounded in other to prevent leak voltages generated by them from being applied to the products. ? the products should always be stored and transported in our shipping containers or conductive containers, or be wrapped in aluminum foil.
19 sanken electric co., ltd. high voltage 3-phase motor drivers SMA6860MZ series SMA6860MZ-ds, rev. 5 ? the contents in this document are subject to changes, for improvement and other purposes, without notice. make sure that this is the latest revision of the document before use. ? application and operation examples described in this document are quoted for the sole purpose of reference for the use of the prod- ucts herein and sanken can assume no responsibility for any infringement of industrial property rights, intellectual property r ights or any other rights of sanken or any third party which may result from its use. ? although sanken undertakes to enhance the quality and reliability of its products, the occurrence of failure and defect of se micon- ductor products at a certain rate is inevitable. users of sanken products are requested to take, at their own risk, preventativ e measures including safety design of the equipment or systems against any possible injury, death, fires or damages to the society due to device failure or malfunction. ? sanken products listed in this document are designed and intended for the use as components in general purpose electronic equ ip- ment or apparatus (home appliances, office equipment, telecommunication equipment, measuring equipment, etc.). when considering the use of sanken products in the applications where higher reliability is required (transportation equipment and its control systems, traffic signal control systems or equipment, fire/crime alarm systems, various safety devices, etc.), and whenever long life expectancy is required even in general purpose electronic equipment or apparatus, please contact your nearest sanken sales representative to discuss, prior to the use of the products herein. the use of sanken products without the written consent of sanken in the applications where extremely high reliability is requi red (aerospace equipment, nuclear power control systems, life support systems, etc.) is strictly prohibited. ? in the case that you use sanken products or design your products by using sanken products, the reliability largely depends on the degree of derating to be made to the rated values. derating may be interpreted as a case that an operation range is set by dera ting the load from each rated value or surge voltage or noise is considered for derating in order to assure or improve the reliability. in general, derating factors include electric stresses such as electric voltage, electric current, electric power etc., environmental stres ses such as ambient temperature, humidity etc. and thermal stress caused due to self-heating of semiconductor products. for these stress es, instantaneous values, maximum values and minimum values must be taken into consideration. in addition, it should be noted that since power devices or ic's including power devices have large self-heating value, the de gree of derating of junction temperature affects the reliability significantly. ? when using the products specified herein by either (i) combining other products or materials therewith or (ii) physically, ch emically or otherwise processing or treating the products, please duly consider all possible risks that may result from all such uses in advance and proceed therewith at your own responsibility. ? anti radioactive ray design is not considered for the products listed herein. ? sanken assumes no responsibility for any troubles, such as dropping products caused during transportation out of sanken's dis tribu- tion network. ? the contents in this document must not be transcribed or copied without sanken's written consent.

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