M56759AFP Datasheet PDF

MITSUBISHI M56759FP/AFP 4-CHANNEL ACTUATOR DRIVER DESCRIPTION The M56759 is a semiconductor inte...

MITSUBISHI M56759FP/AFP 4-CHANNEL ACTUATOR DRIVER DESCRIPTION The M56759 is a semiconductor integrated circuit designed for a CD-ROM actuator driver. This device can function 4-channelactuators by 1 chip due to include 4 channel BTL drivers. Three channels of this device, ch1, ch2 and ch3 can be controlled by PWM pulse. Two of them, ch1 and ch2 can also act in the Current Control mode. Furthermore, this device includes two mute circuits and TSD function. PIN CONFIGURATION (TOP VIEW) VCC2 VREF VREF0 IN3IN3+ Vm3 1 2 3 4 5 6 7 8 9 10 GND 11 VM4(+) VM4(-) 12 13 14 15 16 17 18 19 20 21 42 41 40 39 38 37 36 35 34 33 GND 32 31 30 29 28 27 26 25 24 23 22 VM1(+) VM1(-) OUT1 IN1IN1+ Vm1 SIN1SOUT1 VCC1 OP2OUT MUTE2 MUTE1 SOUT2 SIN2IN2+ IN2OUT2 VM2(-) VM2(+) FEATURES q Low saturation voltage (at bootstrap). q (typical 0.7V at load current 500mA) q Wide supply voltage range. (4.5V to 13.2V) q Low cross-over distortion. q Two naked Operational Amplifiers q Divided Motor power supplies into three parts OUT3 VM3(-) VM3(+) M56759FP/AFP APPLICATION CD-ROM IN4AVm2 IN4BOP1OUT OP1OP1+ OP2+ OP2- Outline 42P2R-D BLOCK DIAGRAM VREF0 3 VREF OP2+ OP22 20 21 OP2 OP1 OUT OP1+ OP1- OUT 22 19 18 17 VCC2 1 15 SOUT1 SIN1- 24 25 Vm2 - A3 + IN1+ IN1OUT1 VM1(+) VM1(-) 27 28 29 31 + + A4 OP2 + S1 -A2 - A4 OP1 A1+ - +A3 - E1 + + + + VCC2 E4 - A1 + 16 14 IN4BIN4AVM4(+) VM4(-) CH1 VREF0 BIAS CH4 30 + + + + 12 13 VM2(-) VM2(+) OUT2 IN2IN2+ 35 8 VM3(-)...