M63016FP Просмотр технического описания (PDF) - MITSUBISHI ELECTRIC
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M63016FP Datasheet PDF : 20 Pages
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MITSUBISHI SEMICONDUCTORS
M63016FP
Spindle Motor AND 4CH ACTUATOR Drive IC
Channel SELECT function
SELECT1
SELECT2
SELECT3
SELECT4
SELECT5
SELECT6
SELECT7
SELECT8
Logic control
Drive channel
Current Brake
MU1 MU2 MU3 Loading Slide
Focus
Tracking
Spindle
OP amp
limit
(Spin>REF)
SELECT
(Spin<REF)
L L H Off
Off Off
Off Off
Off
--
--
H L H On
On On
On On
On
100% PWM
L H H On
Off On
On On
On
100% Short
H H H On
On On
On On
On
100% Short
L L L Off
Off Off
Off Off
Off
--
--
H L L On
On On
On On
On
68%
PWM
L H L On
Off On
On On
On
68%
Short
H H L On
On On
On On
On
68%
Short
This IC has three MUTE terminal (MU1 , MU2 and MU3).
It is possible to control ON / OFF of each channel by external Logic inputs.
It has eight kinds of function for SELECT.In case of SELECT1andSELECT5, 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,it is possible to SELECT the PWM reverse braking to take the brake of Spindle Motor.
Also,in case of SELECT4,it is possible to SELECT the short braking when in the same.
In case of SELECT3,it is possible to do OFF the Slide channel
Regard with making OFF the Loading channel in case of SELECT2,SELECT3 and SELECT4,please refer to
[Loading channel].In case of SELECT6,SELECT7 and SELECT8 it is possible to SELECT the 68% current limit under acceleration.
Therefore ,this mode is av ailable in order to reduce a temperature under acceleration.
Loading channel
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.
5volts. 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.
VM23
LOIN+
Loading
Channel
LOIN-
LO+
+
Vo
-
LO-
forward
M
Reverse
MITSUBISHI ELECTRIC CORPORATION
7 20
REV.011126
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