la4625 Sanyo Semiconductor Corporation, la4625 Datasheet - Page 3

• Manufacturer Part Number: la4625
• Description: Two-channel 13.5 W Btl Audio Power Amplifier
• Manufacturer: Sanyo Semiconductor Corporation

Equivalent Circuit Block Diagram
Standby
SW
OFF
PRE GND
ON
+5 V
2.2
10 V
C1
C4
R1
10 K
2.2
10 V
+
+
1
4
6
3
IN2
C3
Sets the amplifier starting time
(Approximately 0.6 seconds when 33 F)
33
10 V
POP NOISE
PREVENTION
CIRCUIT
100 /16 V
C2
+
RIPPLE
FILTER
BIAS
CIRCUIT
STANDBY
SW
5
+
2
+
–
+
–
C3
IN
IN
0.47
10 V
PREDRIVER
PREDRIVER
PREDRIVER
PREDRIVER
+
7
C10
C10
Impulse noise reduction
(Note: The device’s ability to withstand shorting
to V
16 V may be reduced as the value of this
capacitor is increased. We recommend 0.47 F.)
LA4625
OVER VOLTAGE/
SURGE
THERMAL
SHUT DOWN
POWER
POWER
POWER
POWER
CC
or shorting to ground when V
LOAD SHORT
PROTECTOR
LOAD SHORT
PROTECTOR
V
CC
OUTPUT PIN TO V
SHORT PROTECTOR
OUTPUT PIN TO V
SHORT PROTECTOR
OUTPUT PIN TO GND
SHORT PROTECTOR
OUTPUT PIN TO GND
SHORT PROTECTOR
CC
is around
14
POWER
GND1
POWER
GND2
CC
CC
13
12
10
11
9
8
C5
**
**
**
**
**
(POLYESTER
FILM
CAPACITOR)
+OUT1
+OUT2
–OUT1
–OUT2
C6 0.1
R2
2.2
R3
2.2
C8 0.1
R4
2.2
R5
2.2
C7 0.1
C9 0.1
+
No. 6631-3/8
V
–
+
–
+
CC
2200
25 V
RL
4
RL
4