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