~
~
1
14
28
15
LA6557-X(IC501):BTL Driver
1.Terminal layout
2.Block diagram
VCC2
1
2
3
4
5
6
7
12
13
14
V05-
V05+
V04+
V04-
V03+
V03-
GND
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
30
VCC1
VIN1
VIN1-
REV
FWD
S-GND
MUTE
VIN4
VIN4-
VCC-S
GND
VREF-IN
REG-OUT
REG-IN
VIN3-
VIN3
VIN2-
VIN2
INPUT
MUTE
Thermal shutdown
Output control
Le
v
el Shift
Le
v
el Shift
Le
v
el Shift
Le
v
el Shift
CH3,4,5
POWER
CH5
CH4
CH3
CH2
CH1
MUTE is as follows:
High : Output ON
Low : Output OFF
22K
11K
Signal System Power
CH1,2
Power
22K
22K
22K
11K
11K
11K
SVREG (External PNPTr)
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299