an8021l Panasonic Corporation of North America, an8021l Datasheet - Page 2

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an8021l

Manufacturer Part Number
an8021l
Description
Ac-dc Switching Power Supply Control Ic
Manufacturer
Panasonic Corporation of North America
Datasheet

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AN8021L, AN8021SB
2
Note) The number in ( ) shows the pin number for the AN8021SB.
Pin No. Symbol
Pin No.
AN8021L
AN8021SB
Block Diagram
Pin Descriptions
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
TIM/OVP Pin for overvoltage protection and
PGND
V
PV
SV
N.C.
N.C.
N.C.
TIM/OVP
IFB
OUT
TIM/OVP
CC
CC
Symbol
CLM( )
GND
V
V
IFB
CT
SS
RT
OUT
(13)
(12)
CC
CT
RT
(5)
Grounding pin
Power MOSFET direct drive pin
Power supply voltage pin
Power supply voltage pin
timer latch combined use
Power supply output photocoupler
current feedback signal input pin
N.C.
N.C.
N.C.
8
3
2
Soft start pin
Resistor connection pin that determines charge and discharge current of triangular wave
Triangular wave generating capacitor connection pin
Pulse-by-pulse overcurrent protection input pin
Grounding pin
Power MOSFET direct drive pin
Power supply voltage pin
Current feedback signal input pin from power-supply-output photocoupler
Pin for overvoltage protection and timer latch (joint use)
OSC
OVP
Description
OCL
Start/Stop
FB
4.1 V
Pin No. Symbol
10
11
12
13
14
15
16
Reset
Description
PWM
CLM( )
SGND
N.C.
N.C.
V
CT
RT
SS
CLM
REF
N.C.
Soft start pin
Charge and discharge current of
triangular wave determining resistance
connection pin
Triangular wave generating capacitor
connection pin
N.C.
Pulse-by-pulse overcurrent protection
input pin
Grounding pin
Drive
7
6
5
4
Voltage Regulators
Description
V
(3)PV
V
(2)
GND
(1)PGND
(16)SGND
CLM( )
(15)
CC
OUT
CC

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