la6557h Sanyo Semiconductor Corporation, la6557h Datasheet - Page 6

• Manufacturer Part Number: la6557h
• Description: Five-channel Bridge Driver For Md And Cd Players
• Manufacturer: Sanyo Semiconductor Corporation

Block Diagram
V
V
V
V
V
V
V
V
V
V
V
V
V
V
IN
O
O
O
O
O
O
O
O
O
O
CC
CC
IN
5+
4+
3+
2+
1+
1G
5–
4–
3–
2–
1–
2
1
1
FR
10
11
12
13
14
1
2
3
4
5
6
7
8
9
Power supply for
channels 1 and 2
Power supply
for channels
3, 4, and 5
11 k
CH5
CH4
CH3
CH2
CH1
–
+
–
+
22 k
shutdown circuit
The MUTE pin functions as follows:
High: output on
Low: output off
Thermal
LA6557H
5 V
(with an external PNP transistor)
Signal system power supply
REG
22 k
22 k
22 k
–
+
–
+
–
+
+
–
11 k
11 k
11 k
Mute
–
+
FR
28
27
26
25
24
23
22
21
20
19
18
17
16
15
REV
FWD
S-GND
MUTE
V
V
V
V
REG-OUT
REG-IN
V
V
V
V
IN
IN
CC
REF
IN
IN
IN
IN
4
4G
3G
3
2G
2
-S
-IN
No. 6350-6/8