User Manual

-102-
● LA42152 <Audio Amplifier, IC001>
● FA5502M <P. F. Controller, IC601>
+
--
+
R
S
Q
S
MUL
OCP.COMP
PWM.COMP
OVP.COMP
ER.AMP
CUR.AMP
OSC
UVLO
REF
ON/OFF
IDET
IFB
IIN-
VDET
OVP
VFB
VIN-
GND
OUT
VC
ON/OFF
VCC
REF
CS
CT
SYNC
11µA
1.55V
1.64V
1.55V
11k
15k
4.85k
0.39V
5V
16.5V/8.9V
3.95V/
2.8V
L
D1
Q
Co
Vo
Vin
Rs
Rg1
C5
Rg2
12
101311
9
8
7
6
5
4
32
1
16
14
15
Boost Converter
R4
C1
R3
R2
VR1
R12
R11
R
T
C T
Current Error Amplifier
Oscillator
Soft Start
PWM OUTPUT
Voltage Error Amplifier
Overvoltage Protection
Multiplier
Output ON/OFF Control
18V
ON : Hi
OFF : Low
Output
Voltage
Adjustment
IC601 FA5502M
LAMP
BALLAST
D2
AC INPUT
● FA7700V, FA7701V
<Switching power supply controller,
IC181, IC5601, IC5621, IC7801,
IC7821, IC7841, IC7861>
+
–
+
PWM
– +
ER.AMP
ON/OFF
VREF
OSC
BIAS
UVLO
5.5V
–
+
–
+
ON/OFF
S.C.DET
0.3V
1.5V
1.5V
–
+
S.C.P
2.2V
OFF
RT
REF
4
FB
IN–
1
2 3
8 7 6
5
CS
VCC OUT
GND
0.88V
Power Good Signal
VREF
2.2V
IC Block Diagrams