BA5979S

BA5979S IC CD BA5979S BA5979S 5V CD 1 PNPTr 4ch BTL 4ch LSI PWM BTL ! CD / MD ! 1) 4chBTL 2) 3ch PWM 3) 4) 5) 5V 6) 7) RC PreVCC=8V PowVCC=8V RL=8Ω PNPTr 5.6V Typ. ! Ta=25°C ! BA5979S IC ! 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 100 10k PreVCC POWVCC F 19k INTERFACE F POWVCC 50k Vref R 50k 50k D D D D 10k R MUTE 10k LEVEL SHIFT THERMAL 50k SHUTDOWN F INTERFACE F R R INTERFACE F R R F REGULATOR T. S. D MONITOR POWVCC D D D D 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ! BA5979S IC ! Ta=25°C, VCC=8V, RL=8Ω BA5979S IC ! ch1 3 1,3,26pin ch1 3 2,4,25pin 17k 17k 7.3k 10k 20k 7pin 50k 12 15pin 17 20pin 10k 50k 21pin 50k 50k 6pin 17k 23k 31pin 10k 20k 50k 36k ch1 3 8,9,24pin 10k 10k 30pin 28pin 75k 100 27pin 10k 29pin 11pin BA5979S IC ! PreVCC Vb ch3 Vreg 1M IL Vb4 F Vsin Ib R INTF OUT Ipre Ipow VM RL Vo RL Vo4 32 31 30 29 28 27 26 25 24 23 PreVCC 22 21 20 19 18 17 100 10k 10k F INTER19k FACE F POWVCC R R POWVCC MUTE 50k D 50k D D D 10k LEVEL SHIFT THERMAL Vref F INTERFACE F R R INTERFACE F R R POWVCC D D D F REGULATOR T. S. D MONITOR SHUTDOWN D 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Vo 1 F Vref Iref 5V F R ch1 INTF OUT F R ch2 F R INTF OUT INTF OUT Vref Vref 10k RL Vo RL IC PR IN PF Vf PR IC IN PF ICON Vr Ir Vref SW IL IP 100 Vref Moni Fig.1 BA5979S IC ! (1) ch1 3 I1 25pF F SW1 INTER A FACE R SW2 100k BUF2 OUT2 BUF1 OUT1 I2 Fig.2 1V s 5V F ...