LA4628
Equivalent Circuit Block Diagram
C2
100 µ/16 V
VCC
+
+
2200 µ
25 V
C5
14
2
OUTPUT PIN TO VCC
SHORT PROTECTOR
RIPPLE
FILTER
–OUT1
–
PREDRIVER
PREDRIVER
POWER
POWER
13
**
C1
C6 0.1 µ
+
R2
2.2
R3
2.2
+
–
1
RL
4 Ω
POWER
GND1
LOAD SHORT
PROTECTOR
IN
12
2.2 µ
10 V
**
C7 0.1 µ
11
+OUT1 +
OUTPUT PIN TO GND
SHORT PROTECTOR
PRE GND
OVER VOLTAGE/
SURGE
BIAS
CIRCUIT
3
**
(POLYESTER
FILM
CAPACITOR)
VCC
R1
10 K
ON
THERMAL
STANDBY
SW
4
6
OUTPUT PIN TO GND
SHORT PROTECTOR
OFF
SHUT DOWN
Standby
SW
–OUT2
+5 V
C4
–
PREDRIVER
PREDRIVER
POWER
9
C8 0.1 µ
IN2
**
+
R4
2.2
R5
2.2
+
IN
–
RL
4 Ω
LOAD SHORT
PROTECTOR
POWER
GND2
10
2.2 µ
10 V
8**
C9 0.1 µ
POWER
+OUT2 +
OUTPUT PIN TO VCC
SHORT PROTECTOR
POP NOISE
PREVENTION
CIRCUIT
5
7
+
+
C3
33 µ
10 V
0.47 µ
10 V
C10
C3
Sets the amplifier starting time
(Approximately 0.6 seconds when 33 µF)
C10
Impulse noise reduction
(Note: The device’s ability to withstand shorting
to VCC or shorting to ground when VCC is around
16 V may be reduced as the value of this
capacitor is increased. We recommend 0.47 µF.)
No. 6632-3/8
SANYO [ SANYO SEMICON DEVICE ]
