ICs for CD/CD-ROM Player
n Overview
The AN8377N is an IC which incorporates 3 circuits of
BTL drivers for driving various DC motors such as actua-
tors (focus, tracking, traverse), spindles, and loading of
the CD players, and the +5V low drop type power supply.
n Features
• Operating supply voltage range ; V
CC
=5.5V to 18V
• Built-in 3 circuits of voltage BTL drivers
(maximum drive current : 500mA)
• Stable circuit operation against supply voltage change
and temperature change due to the built-in stabilized
power supply
• Built-in +5V low drop power supply (external PNP
power transistor)
• Built-in reset circuit (reset voltage : 4.82V)
• Built-in thermal protective circuit (operating tempera-
ture : 159 ; typ.)
• Built-in power cut circuit (motor driver 1 only)
n Applications
Linear driving of the DC motors and actuators of the
CD players, CD radio cassette tape recorder, and so on.
AN8377N
3-channel Linear Driver
1
2
3
4
5
6
7
8
10
9
11
12
13
14
15
16
27.4
–
0.3
6.35– 0.3 4.70.25
3.05– 0.25
0.5
–
0.1
1.2
–
0.25
2.54
1.5
–
0.1
3.80
–
0.3
17
7.62– 0.25
0 ~ 6˚
0.45
+ 0.1
– 0.05
0.560.1
ø2.1
Unit : mm
1.7
2.54
1.06– 0.25
21.6
–
0.3
5.08
–
0.1
16-Lead DIP Package with Fin (HDIP016-P-0300)
15 13 14 9 10 11 12
1
F
2
3 4 16 5 7 6 8
+–
Error
Amp.
100kW
+–
Error
Amp.
100kW
+–
Error
Amp.
100kW
RST
Thermal
Shutdown
BTL
Motor
Driver 1
BTL
Motor
Driver 3
BTL
Motor
Driver 2
Band–
gap
(2.5V)
5V
Regulator
(low–sat)
P VCC
GND
VCC
VREF
(
1
⁄2
VCC)
n Block Diagram