M56754SP
DESCRIPTION
The M56754SP is a semiconductor IC developed as the motor driver used for CD-ROM and CD player. This circuit includes 4-Channel BTL Driver that is able to drive four actuator with one IC.
PIN CONFIGURATION (TOP VIEW)
VCC Vbs1 1 2 3 4 5 6 7 8 GND 9 10 VM2(+) VM2(-) Vctl2 A1+ A1A1out 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 VM3(+) VM3(-) Vctl3H Vctl3L A2out A2GND Vref Vctl4(2) Vbs2 Vm2 Vctl4(1) VM4(+) VM4(-)
FEATURES q q q q Low Output saturation voltage(typ:1.35V at 0.5A) Large operating supply voltage range(4.5- 13.2V) Minimum Crossover distortion Built-in general operational amplifier
Vm1 Vctl1L Vctl1H VM1(-) VM1(+)
APPLICATION
CD-ROM, CD player
Outline 32P4B
BLOCK DIAGRAM
Vm1 Vbs1 3 2 VCC 1 VCC + Vbs2 VCC Vbs1 + + Vrefs + VCC Current Bias Vrefm CH1 + Vbs2 CH4 Vm2 + Vref 32 Vbs2 Vm2 30 29
Vbs1 Vctl1L 4 Vctl1H 5 Vm1 VM1(+) 7 Vm1 VM1(-) 6 +
- 31 Vctl4(2) 28 Vctl4(1)
Vbs2 + +
Vm2 27 VM4(+) Vm2 26 VM4(-) 19 Vctl3(L) +
- + Vctl2 13...
