
M63010FP
SPINDLE MOTOR AND 4CH ACTUATOR DRIVER
(
/
16)
Preliminary
MITSUBISHI SEMICONDUCTORS
REV990118
This IC has two MUTE terminal (MU1 and MU2).
It is possible to control ON / OFF of each channel by external logic inputs.
It has four kinds of function for channel select.In case of SELECT1, the bias of all circuit becomes OFF.
Therefore, this mode is available in order to reduce the power dissipation when the waiting mode.
In case of SELECT2,the bias of the loading, the slide and the regulator amplifier circuit becomes ON.
In case of SELECT3,it is possible to make OFF the loading channel only.
In case of SELECT4,the bias of all channel becomes ON.
Regard with making OFF the loading channel in case of SELECT2,SELECT3 and SELECT4,please refer to
[Loading channel].
Channel select function
Logic control
MU1
H
L
H
L
Drive
Focus Tracking Spindle
On
On
Off
Off
Off
Off
Off
Off
channel
MU2 Loading Slide
H
On
H
On
L
On
L
Off
Regulator-
On
Off
On
Off
SELECT4
SELECT3
SELECT2
SELECT1
On
Off
On
Off
On
Off
Off
Off
7
Loading channel
LOIN+
LOIN-
LO+
LO-
M
Forward
Reverse
VM23
LOADING
Channel
Vo
+
-
The loading channel is the circuit of BTL voltage drive. This circuit has the referential input. Output swing is determined with
Vin x 8. Also,it is possible for this channel to use for the slide motor , the focus coil and the tracking coil.
The input terminal is high impedance. It is possible to do variable a gain by external resistor.
The output becomes high impedance in case of both input voltage becomes under 0.7 volts. It is possible for the input
terminal to operate from 0 volts.The following table and diagram show an application in case of two MCU port and one MCU
port for the loading motor.In case of one MCU port, if use three state port, it is possible for this channel to have the stop
function.