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| M63021FP Datasheet, PDF (1/17 Pages) Mitsubishi Electric Semiconductor – SPINDLE MOTOR AND 5CH ACTUATOR DRIVER | |||
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Preliminary
MITSUBISHI SEMICONDUCTORS
M63021FP
SPINDLE MOTOR AND 5CH ACTUATOR DRIVER
[FEATURES]
This IC is 1 chip driver IC for spindle motor and 5 channel
actuators. All of the motor and actuator of optical disk drive
system (CD-ROM etc.) can be drived by only this IC.
This IC has a direct PWM control system for Spindle and Slide
channels drive due to reducing IC power dissipation.
This IC has three voltage supply terminals (for Spindle,
Slide,Focus/Tracking and Loading) , and three voltage
supply can be set separately.
Further more this IC has short braking select function,FG
amplifier, thermal shut down circuit, standby circuit, reverse
rotation detect circuit.
[APPLICATION]
PIN CONFIGURATION
(Top View)
SL1IN 1
SL2IN 2
VM2 3
RSL2 4
SL2+ 5
SL2- 6
GND 7
RSL1 8
SL1+ 9
SL1- 10
GND 11
W 12
V
13
U
14
RSP 15
Hw- 16
Hw+ 17
Hv- 18
Hv+ 19
Hu- 20
Hu+ 21
42 OSC
41 MU1
40 LOIN+
39 VM3
38 BRS
37 LO-
36 LO+
35 FO-
34 FO+
33 GND
32 TO+
31 TO-
30 5VCC
29 GND
28 TOIN
27 FOIN
26 SPIN
25 REF
24 FG
23 HB
22 VM1
Package outline : 42 PIN POWER SSOP (42P9R-B)
CD-ROM, DVD, DVD-ROM, DVD-RAM ,Optical disc related system,etc
[BLOCK DIAGRAM]
FG
HU+
HU-
HV+
HV-
HW+
HW-
SPIN
REF
SL1IN
SL2IN
FOIN
TOIN
s
s
FG
Reverse
Detect
120â«
MATRIX
Hall Bias
CTL
amp.
Current
comp.
Direction
comp.
s
s
Logic
Logic
CTL
amp.
Current
comp.
Direction
comp.
CTL
amp.
Current
comp.
Direction
comp.
TSD
BIAS
Frequency
generator
Regulator
5V power supply
MU1
OSC
X1
X12
X8
2
( 1 / 17)
REV990728
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