an8022l Panasonic Corporation of North America, an8022l Datasheet - Page 5

• Manufacturer Part Number: an8022l
• Description: Ac-dc Switching Power Supply Control Ic
• Manufacturer: Panasonic Corporation of North America

Voltage Regulators
Note) The number in ( ) shows the pin number for the AN8022SB.
Pin No.
(3)(4)
Terminal Equivalent Circuits (continued)
(2)
(5)
(6)
6
7
8
9
V
REF
SV
PV
CC
CC
comp.
PWM
Equivalent circuit
Comp.
conversion
5 A
I/V
6 V
8
500
(5)
9
(2)
500
(6)
6
Supply voltage terminal.
V
The terminal for directly driving a power
MOSFET.
V
It monitors the supply voltage and has operating
threshold value for start/stop/OVP reset.
TIM/OVP:
The terminal with double functions such as OVP
(overcurrent protection) and timer latch terminal.
[OVP]
When it receives the overvoltage signal of the
power supply output and high is input to the
terminal, internal circuit is turned off. At the same
time, this condition (latch) is held. To reset the
OVP latch, it is necessary to reduce V
release voltage.
[Timer latch]
The output voltage drop due to the overcurrent
condition of power supply output is detected
through the current level of IFB-input. When I
becomes less than a current of a certain value,
charge current flows into the capacitor connected
to this terminal. When the capacitor is charged to
the threshold voltage of OVP, OVP
starts to operate and the IC stays stop.
IFB:
The terminal into which the current feedback sig-
nal is input from the photocoupler of the power
supply output.
OUT
CC
, (PV
:
CC
), (SV
Description
CC
):
AN8022L, AN8022SB
CC
under the
FB
I/O
O
I
I
5