63095ha (ot) no. 4947-1/7 overview the LB1886V is a three-phase brushless motor driver ic that is optimal for capstan and drum motor drive in camcorders and other vcr products and for motor drive in digital audio products. features ? 120 voltage linear drive scheme ? motor voltage control based speed control provides reduced power (and thus is optimal for use in portable equipment) ? built-in torque ripple compensation filter ? soft switching scheme requires a smaller external capacitance (thus chip capacitors can be used) ? built-in thermal shutdown circuit ? built-in fg amplifier package dimensions unit: mm 3175a-ssop24 sanyo: ssop24 [LB1886V] monolithic digital ic ordering number : en4947a LB1886V three-phase brushless motor driver sanyo electric co.,ltd. semiconductor bussiness headquarters tokyo office tokyo bldg., 1-10, 1 chome, ueno, taito-ku, tokyo, 110-8534 japan specifications absolute maximum ratings at ta = 25c parameter symbol conditions ratings unit maximum supply voltage 1 v cc 1 max 7v maximum supply voltage 2 v cc 2 max 12 v maximum supply voltage 3 v s max v cc 2v applied output voltage v o max v s + 2 v applied input voltage v i max all input pins v cc 1v output current i o max 1.0 a allowable power dissipation pd max 0.5 w operating temperature topr ?20 to +75 c storage temperature tstg ?55 to +150 c
allowable operating ranges at ta = 25c electrical characteristics at ta = 25c, v cc 1 = 5 v, v cc 2 = 7 v, v s = 3 v note: 1. the ic goes to the standby state when the standby pin is open. 2. these are design target values and are not measured. the overlap standard is taken as the test standard without change. no. 4947-2/7 LB1886V parameter symbol conditions ratings unit supply voltage 1 v cc 1v cc 1 v cc 2 4.0 to 6.0 v supply voltage 2 v cc 2 4 to 10 v supply voltage 3 v s up to v cc 2v parameter symbol conditions min typ max unit current drain 1 i cc 1v br = 5 v 3.0 5.0 ma current drain 2 i cc 2v br = 5 v 6.5 10.0 ma current drain 3 i s v br = 5 v, r l = 5.0 ma quiescent current 1 i ccoq v stby = 0 v 100 a quiescent current 2 i soq v stby = 0 v, r l = 150 a output saturation voltage v o (sat) i out = 0.6 a, sink + source 1.7 v output transistor breakdown v o (sus) i out = 20 ma, * 212v voltage quiescent voltage v oq v br = 5 v 1.45 1.55 1.65 v hall amplifier input offset voltage v h offset * 2?5+5mv hall amplifier common mode v hcom 1.4 2.8 v input voltage range hall i/o voltage gain g vho rangle = 8.2 k 34.5 37.5 40.5 db brake pin high level voltage v brh 2.0 v brake pin low level voltage v brl 0.8 v brake pin input current i brin 120 a brake pin leakage current i br leak ?30 a frc pin high level voltage v frch 2.8 a frc pin low level voltage v frcl 1.2 a frc pin input current i frcin 100 a frc pin leakage current i frc leak ?30 a upper side residual voltage v xh i out = 100 ma, v cc 2 = 6 v, v s = 2 v 0.285 0.455 v lower side residual voltage v xl i out = 100 ma, v cc 2 = 6 v, v s = 2 v 0.350 0.440 v residual voltage inflection point v s v x i out = 100 ma, v cc 2 = 6 v, * 2 0.9 v overlap ol v cc 2 = 6 v, v s = 3 v, r l = 100 (y) 69 79 89 % overlap vertical delta ol v cc 2 = 6 v, v s = 3 v, r l = 100 (y) ?10 0 +10 % standby on voltage v stbyl * 1 ?0.2 +0.8 v standby off voltage v stbyh 25v standby pin bias current i stbyin 100 a thermal protection circuit t tsd * 2 150 180 210 c operating temperature thermal protection circuit t tsd * 2 15 c hysteresis [fg amplifier] fg amplifier input offset voltage v fg offset ?8 +8 mv open loop voltage gain g vfg f = 10 khz 43 db source output saturation voltage v fg ou i o = ?2 ma 3.7 v sink output saturation voltage v fg od i o = 2 ma 1.3 v common mode signal rejection ghr * 2 80 db ratio fg amplifier common mode input v fg ch 0 +3.5 v voltage range phase margin ?m * 2 20 deg schmitt amplifier threshold voltage v fgs sh vfgin + = 2.5 v, when vfgout2 goes from high to low 2.45 2.50 2.55 v schmitt amplifier hysteresis v fgs his vfgin + = 2.5 v 20 40 60 mv
no. 4947-3/7 LB1886V pin assignment internal equivalent circuit block diagram
pin functions no. 4947-4/7 LB1886V pin no. symbol pin voltage equivalent circuit function 3 4 5 6 7 9 10 11 v s v cc 2 v cc 1 st. by angle fgin ? fgin + fgout1 < v cc 2 4 to 10 v 4 to 6 v h: 2.0 v min l: 0.8 v max (when v cc 1 is 5 v.) min 0 v max 3.5 v (when v cc 1 is 5 v.) supply pin that determines the output amplitude. this pin must be set lower than the v cc 2 voltage. power amplifier system power supply for transistors other than those that drive the motor. power supply voltage for control blocks other than those provided by v cc 1. power supply voltage for the hall amplifier, forward/reverse, fg amplifier, and thermal shutdown circuits all circuits are turned off by connecting this pin to ground or leaving it open. the current drain is about 0 a in this mode. apply 2.0 v or higher for motor drive operation. connect a resistor between this pin and ground. the hall input/output gain can be changed by changing the value of this resistor. fg signal input fg amplifier output continued on next page.
continued from preceding page. no. 4947-5/7 LB1886V pin no. symbol pin voltage equivalent circuit function 12 14 15 16 17 18 19 20 21 22 23 24 2 1 13 fgout2 frc br win2 win1 vin2 vin1 uin2 uin1 rf uout vout wout sub gnd gnd h: 2.8 v min l: 1.2 v max (when v cc 1 is 5 v.) h: 2.0 v min l: 0.8 v max min 1.4 v max 2.8 v (when v cc 1 is 5 v.) fg schmitt amplifier output motor forward/reverse control low level: forward (1.2 v or lower: when v cc 1 = 5 v) high level: reverse (2.8 v or higher: when v cc 1 = 5 v) motor stop control low level: motor drive (0.8 v or lower) high level: motor stop (2.0 v or higher) w phase hall element input pin logic high refers to the state where w in 1 > w in 2 v phase hall element input pin logic high refers to the state where v in 1 > v in 2 u phase hall element input pin logic high refers to the state where u in 1 > u in 2 ground for the output transistors outputs ground for all circuits other than the output transistor
no. 4947-6/7 LB1886V truth table input high: indicates that the phase 1 input is at least 0.2 v higher than the phase 2 input for each phase. input low: indicates that the phase 1 input is at least 0.2 v lower than the phase 2 input for each phase. forward/reverse control: high: 2.8 v to v cc 1 low: 0 v to 1.2 v sample application circuit source sink input forward/reverse control uvw f/rc 1 w phase v phase hhl l v phase w phase h 2 w phase u phase hll l u phase w phase h 3 v phase w phase llh l w phase v phase h 4 u phase v phase lhl l v phase u phase h 5 v phase u phase hlh l u phase v phase h 6 u phase w phase lhh l w phase u phase h
ps no. 4947-7/7 LB1886V this catalog provides information as of april, 1998. specifications and information herein are subject to change without notice. no products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. anyone purchasing any products described or contained herein for an above-mentioned use shall: ? accept full responsibility and indemnify and defend sanyo electric co., ltd., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: ? not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on sanyo electric co., ltd., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. sanyo believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties.
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