Voltage Regulators
AN8032
Active filter control IC
s
Overview
In supplying electric power from commercial power
supply to various electrical equipment, there is a possi-
bility that the harmonic distortion generated in the power
line may give obstruction to the power facilities or other
electrical equipment. The use of active filter is one of the
methods to solve the harmonic distortion problems.
The AN8032 is a monolithic IC which incorporates
the control and protection functions into one package so
that the active filter can be constructed easily. It is most
suitable for the measures against the harmonic distortion
problems such as lighting equipment.
6.0±0.3
2.4±0.25
3.3±0.25
Unit: mm
8
0.5±0.1
7
23.3±0.3
6
5
4
1.5±0.25
1.5±0.25
1.4±0.3
3.0±0.3
2
1
0.3
+0.1
–0.05
s
Features
•
Self-excited peak current mode is adapted.
SIP009-P-0000C
•
Built-in protection circuit for preventing the overvolt-
age generated under a small load
•
Easy constant setting with enlarged dynamic range of multiplier and error amplifier.
•
Overvoltage protection terminal separately set to pass the short test of the safety standards
•
Using totem pole output circuit which allows the power MOSFET to be directly driven.
•
Built-in low voltage protection circuit which ensures the on-resistance during the power MOSFET operation.
•
Timer circuit is built in for realizing automatic start.
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Applications
•
Lighting equipment and switching power supply equipment
s
Block Diagram
V
BTH
One
shot
2.5 V
Under voltage Over voltage
clamper
clamper
U.V.L.O. comp.
V
REF
10 V/8 V
9
6
V
CC
V
B
Timer
Drive
8
V
OUT
Current
comp.
MPI
2
Multiplier
OVP comp.
2.6 V 5
1
Error amp.
2.5 V
2.5 V
4
OVP
CS
EI
7
GND
EO
3
30°
3
2.54
9
1
PANASONIC [ PANASONIC SEMICONDUCTOR ]
