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ksd-i7f014-003 1 sept., 2010 rev. 03 1ch bi-directional motor driver 1ch bi-directional motor drive ic S8082 marking information device code year & week code product name marking package name S8082 S8082 sop8 description the S8082 is a monolithic integrated circuit designed for driving bi-directional dc motor with br aking mode and speed control mode, and it is suitable for the loading motor driver of vcr, cdp, and toy systems. the speed control can be achieved by adjusting the external voltage of the speed control pin. it was two pins of logic inputs for contro lling the forward/reverse and braking. application ? vcr low current dc motor such as audio or video equipment. ? cd-player compact disk player (cdp) tray or changer ? toy systems ? general dc motor features and benefits ? built-in brake function for stable brake characteristics. ? built-in element to absorb a surge current derived from changing motor direction and braking motor drive. ? motor speed direction change. ? stable motor direction change. ? interfaces with cmos devices. ? built-in the thermal shut down circuit (175 ) ? low standby current (6.5ma) ? wide operating supply voltage range ( 4.3v ~ 13.2v ) s s e e m m i i c c o o n n d d u u c c t t o o r r http:// www.auk.co.kr s s o o p p - - 8 8 ordering information S8082( ) auk yyww( )
ksd-i7f014-003 2 sept., 2010 rev. 03 1ch bi-directional motor driver no symbol i/o description 1 gnd - ground 2 v o1 o output 1 3 vctl i motor speed control 4 vin1 i input 1 5 vin2 i input 2 6 sv cc - supply voltage (signal) 7 pv cc - supply voltage (power) 8 v o2 o output 2 ? internal block diagram & pin assignment v in1 v ctl v o1 gnd v in2 sv cc pv cc v o2 1 2 3 4 5 6 7 8 driver out pre driver bias tsd logic switch ? pin description S8082
ksd-i7f014-003 3 sept., 2010 rev. 03 1ch bi-directional motor driver parameter symbol limits unit maximum supply voltage vcc 18 v maximum output current i o 0.8 a power dissipation p d 600 mw operate temperature range t opr -25 ~ +85 storage temperature range t stg -55 ~ +150 [ pd ] when mounted on a 70mm 70mm1.6mm glass epoxy board. reduced by 4.84mw for each increase in t a of 1 . [ i o ] duty 1 / 100, pulse width 500us. [ t stg ] should not exceed pd or soa and t j =150 values. parameter symbol limits unit sv cc 4.3 ~ 13.2 v supply voltage pv cc 4.3 ~ sv cc v vctl pin is connected to the vcc line with 2vbe + 1vcesat [ approximately 1.7v ]. so, vcc should be supplied more than v zener+1.7v for using stable area of zener diode. ? absolute maximum ratings ( ta = 25 ) ? recommended operating conditions ( ta = 25 ) ? 70mm70mm1.6mm glass epoxy board . ? power dissipation curve [ pd ] S8082
ksd-i7f014-003 4 sept., 2010 rev. 03 1ch bi-directional motor driver ( unless otherwise specified ta=25 , pv cc =sv cc =12v ) specification no characteristics symbol condition min. typ. max. unit 1 quiescent circuit current i cc pin4, pin5 = gnd, rl = open 4 6.5 9.5 ma 2 minimum input on current 1 i min1 pin4 = i in1 , pin5 = l, rl= open - 10 30 ua 3 minimum input on current 2 i min2 pin4 = l, pin5 = i in2 , rl= open - 10 30 ua 4 input threshold voltage 1 v ith1 pin4 = v in1 , pin5 = l, rl= open 1 1.3 1.6 v 5 input threshold voltage 2 v ith2 pin4 = l, pin5 = v in2 , rl= open 1 1.3 1.6 v 6 output leakage current 1 i ol1 pin4 = pin5 = gnd, rl = open - 0.01 1 ma 7 output leakage current 2 i ol2 pin4 = pin5 = gnd, rl = open - 0.01 1 ma 8 zener current 1 i z1 pin4 = h, pin5 = l, rl = open - 0.85 1.5 ma 9 zener current 2 i z2 pin4 = l, pin5 = h, rl = open - 0.85 1.5 ma 10 output voltage 1 v o1 pin4 = h, pin5 = l, rl = 60 6.6 7.2 7.4 v 11 output voltage 2 v o2 pin4 = l, pin5 = h, rl = 60 6.6 7.2 7.4 v 12 saturation voltage 1(upper) v sat1 i o = 300ma - 1.9 2.3 v 13 saturation voltage 2(upper) v sat2 i o = 500ma - 1.9 2.3 v 14 saturation voltage 1(lower) v sat3 i o = 300ma - 0.25 0.5 v 15 saturation voltage 2(lower) v sat4 i o = 500ma - 0.4 0.6 v ? electrical characteristics S8082
ksd-i7f014-003 5 sept., 2010 rev. 03 1ch bi-directional motor driver application information 1. thermal shut down circuit the built-in thermal shutdown circuit mutes the output current when the chip temperature reaches 175 (typ.). the hysteresis is set to 25 (typ.) by ihys, so the circuit will start up again when the chip temperature falling down to 150 (typ.) when ta = 25 , q2 & q3 are turned-off [ output stage : normality operation ] v1 = i (r1+r2) v2 = r2 (r1+r2) v1 = 0.385v when ta = 175 , q2 & q3 are turned-on [ output stage : shut down ] 0.700v ? 0.385v = 315mv [ vbe level of q2 & q3 : 0.700v / temper ature coefficient of q2 = q3 = -1.8mv/ ] ? t.s.d : 315mv1.8mv = 175 i q1 q3 q2 r1 r2 v1 v2 output stage [ vo1, vo2 ] S8082
ksd-i7f014-003 6 sept., 2010 rev. 03 1ch bi-directional motor driver 2. input logic vin1 2vbe, q2 = on vin1 2vbe, q2 = off below 1.2v (typ.), the output current is muted. [ logic input to output table ] input logic output logic vin 1 (pin 4) vin 2 (pin5) vo 1 (pin2) vo 2(pin8) motor status l l l l stand-by h l h l forward rotation l h l h reverse rotation h h l l brake * vin1/vin2 recommended conditions [ input high is 2.0v to vcc / input low is below 0.8v ] v in1 v in2 out1 out2 q1 q2 q3 q4 q5 q6 q7 q8 q9 q10 S8082
ksd-i7f014-003 7 sept., 2010 rev. 03 1ch bi-directional motor driver 3. output part circuit & speed control [ forward rotation : vin1( h ), vin2( l ) ] v1 = vctl + 2 vbe(q7,q8) vo1 = v1 - 2vbe(q1,q2) = vctl + 2 vbe(q7,q8) - 2vbe(q1,q2) = vctl vo2 = vsat(q6) vout = vo1 ? vo2 = vctl ? vsat(q6) [ * therefore, vout level depends on th e vctl pin?s level for speed control ] m v1 v2 vctl vctl q1 q2 q3 q4 q5 q6 q7 q8 q9 q10 r1 r2 r3 r4 vo1 vo2 S8082
ksd-i7f014-003 8 sept., 2010 rev. 03 1ch bi-directional motor driver characteristic diagrams fig.4 temperature - v o fig. 3 v ctl - v o fig. 1 v cc - i cc fig. 2 temperature - i cc fig.6 i o - v sat (lower) fig. 5 i o - v sat (upper) S8082
ksd-i7f014-003 9 sept., 2010 rev. 03 1ch bi-directional motor driver ? application circuit S8082 104 m vin1 vin2 vcc rs 104 zd 1 2 3 4 5 6 7 8 gnd v o1 v o2 pv cc sv cc v ctl v in1 v in2 S8082
ksd-i7f014-003 10 sept., 2010 rev. 03 1ch bi-directional motor driver ? test circuit m vin1 vin2 vcc zd 7.4v 1 2 3 4 5 6 7 8 gnd v o1 v o 2 pv cc sv cc v c tl v in1 v in2 a a aa a S8082 S8082
ksd-i7f014-003 11 sept., 2010 rev. 03 1ch bi-directional motor driver outline dimension S8082
ksd-i7f014-003 12 sept., 2010 rev. 03 1ch bi-directional motor driver the auk corp. products are intended for the use as components in general electronic equipment (office and co mmunication equipment, m easuring equipment, home appliance, etc.). please make sure that you consult with us before you use these auk corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to th e welfare of human life(atomi c energy control, airplane, spaceship, transportation, co mbustion control, all types of safety device, etc.). auk corp. cannot accept liability to any damage which may occur in case these auk corp. products were used in the mentioned equi pments without prior consultation with auk corp.. specifications mentioned in this publicati on are subject to change without notice. S8082

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