M63023 Datasheet, PDF (1/17 Pages) Mitsubishi Electric Semiconductor – SPINDLE MOTOR AND 5CH ACTUATOR driveR

MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
[FEATURES]
This IC is 1 chip driv er IC f or spindle motor and 5 channel
actuators. All of the motor and actuator of optical disk driv e
sy stem (CD-ROM etc.) can be driv ed by only this IC.
This IC has a direct PWM control sy stem f or Spindle and
Slide channels driv e due to reducing IC power dissipation.
This IC has three Voltage supply terminals
(f or Spindle,Slide,Focus/Tracking and Loading), and three
v oltage supply can be set separately .
Further more this IC has short braking select f unction,FG
amplif ier, thermal shut down circuit, standby circuit, rev erse
rotation detect circuit.
PIN CONFIGURATION
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
(Top View)
42 OSC
41 MU1
40 LOIN+
39 _VM3
38 MU2
37 LO-
36 LO+
35 FO-
34 FO+
33 GND
32 5VCC
31 _TO+
30 TO-
29 GND
28 TOIN
27 FOIN
26 SPIN
25 REF
24 FG
23 _HB
22 _VM1
[APPLICAT ION]
Package outline : 42 PIN POWER SSOP (42P9R-K)
CD-ROM, CD-R/RW,DVD, DVD-ROM, DVD-RAM ,Optical disc related system,etc
[BLOCK DIAGRAM]
FG
HU+
HU-
HV+
HV-
HW+
HW-
023/026 FG X1
024/027 FG X3
s
s
FG
Reverse
Detect
120
MATRIX
Hall Bias
CTL
amp.
Current
comp.
SPIN
REF
Direction
comp.
SL1IN
SL2IN
FOIN
TOIN
s
s
Logic
Logic
CTL
amp.
Current
comp.
Direction
comp.
CTL
amp.
Current
comp.
Direction
comp.
TSD
BIAS
Brake select
Frequency
generator
Regulator
5V power supply
MU1
MU2
OSC
023/024
023/024
X5
X5
X8
026/027
026/027
X12
X12
( 1 / 17)
REV010307