ICs for Compact Disc/ CD-ROM Player
AN8488SB
3-phase full-wave motor driver and DC motor BTL driver IC
s
Overview
The AN8488SB is a motor driver IC incorporat-
ing a 3-phase full-wave motor driver and DC motor
BTL driver IC with a reverse rotation brake/short
brake changeover function. It is encapsulated into a
high allowable power dissipation package (with cop-
per block).
18.4±0.2
(10.00)
(1.95)
42
34
30
22
(1.315)
Unit: mm
(4.00)
8.3±0.2
10.93±0.30
0.30
– 0.05
+0.10
0° to 10°
0.5±0.2
•
3-phase full-wave and snubberless
•
FG output
•
Current limit
•
Reverse rotation prevention
•
Thermal protection circuit built-in
1
9
13
21
(3.20)
(1.20)
0.80
0.35
– 0.05
Seating plane
+0.10
s
Applications
•
Various types of optical disk drive
HSOP042-P-0400C
s
Block Diagram
29 VM1
34
CS
36
A1
35
A2
32
A3
SG
V
CC2
VM2
VN
VP
H1+
H1−
H2+
16
17
18
Direction
changeover
Lower side
distribution
Direction
detection
Detection
Hall
bias
EA
Absolute
value
VTL
Start/stop
Thermal
protection
circuit
FG
Brake comparator
circuit
ER
Logic
EP
=
ER
×
EA
1 VM2
2
Amp.
Upper side
distribution
Amp.
Upper
side
power
Lower
side
power
Reset
FIN1
V
CC2
det
.
Hall
amp.
H2− 19
matrix
H3+ 20
H3− 21
23
VH
V
REF
det.
EC
27
ECR 26
25
V
CC1
22
28
BRK 15
14
11
PCI
FG
PG1
PG2
SLIN
S/S
PC
V
REF
12
1
2
5
10
9
4
7
0.1±0.1
2.7±0.2
s
Features
1
PANASONIC [ PANASONIC SEMICONDUCTOR ]
