MITSUBISHI <CONTROL / DRIVER IC>
M56788FP
5 CHANNEL ACTUATOR DRIVER
APPLICATION CIRCUIT No.2
Differential PWM input • Direct voltage control (FOCUS, TRACKING, SPINDLE,
SLED, ROADING)
5V
VBS1
VBS2
5V
Vm2
PWM2
R1
C1
C2
R3
PWM2
3V
14K
10K
SS.GND
- +
MUTE1
SLEEP
Hi:Sleep
5CH
1–4CH
M
TSD
x4
- +
x8
VM5-
R1
IN1+
R2
C1
VREFO
VM1+
FOCUS
+
x2.5
x4
x5
VM1-
R4
R4
C2
VM2+
R3
TRACKING
x5
VM2-
x4
x2.5
- +
+ -
VBS
x8
x4
REGB
R10
REG+
C5
R9
+
- +
VM4-
PWM1
MUTE2
+
x2.5
E4
+ -
x2.5
x4
+ -
E2
- +
- +
VM3+
SPINDLE
IN1-
OUT1
R2
VREFO
Ra
IN2+
IN2-
OUT2
PWM1
5V
Vm1
R
R
Vrefm2
+ -
R
R
R5
IN3+
+
E1
R6
OUT3
CH3IN
-
x8
VM3-
+
IN4+
IN4-
R8
OUT4
C4
VM4+
VREFO
R8
C4
-
+
1.25V
E5
-
-
Reg-amp
IN5+
IN5-
R10
OUT5
C5
R9
x4
VM5+
ROADING
-
SS.GND
GND
(4PINS)
VREFO
It can be opened at
Propagation
characteristic check.
C3
R6
C3
R7
+ -
E3
-
IN3-
PWM1
PWM1
R7
SLED
M
PWM2
PWM2
M
R5
Vrefm1
+ -
Vref
VREFO
VREF
1.5V
PWM1
PWM2
-
+
VREFO
VREFO
MITSUBISHI [ MITSUBISHI ELECTRIC SEMICONDUCTOR ]
