AN8021L Ver la hoja de datos (PDF) - Panasonic Corporation
Número de pieza
componentes Descripción
Fabricante
AN8021L Datasheet PDF : 16 Pages
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AN8021L, AN8021SB
s Block Diagram
Voltage Regulators
TIM/OVP 8
(5)
CT 3
(13)
RT 2
(12)
OVP
Start/Stop
VREF
OSC OCL
4.1 V
FB
PWM
Reset CLM
7 VCC
6
(3)PVCC
VOUT
Drive 5
(2)
GND
(1)PGND
(16)SGND
4 CLM(−)
(15)
Note) The number in ( ) shows the pin number for the AN8021SB.
s Pin Descriptions
• AN8021L
Pin No. Symbol
Description
1
SS Soft start pin
2
RT Resistor connection pin that determines charge and discharge current of triangular wave
3
CT Triangular wave generating capacitor connection pin
4
CLM(−) Pulse-by-pulse overcurrent protection input pin
5
GND Grounding pin
6
VOUT Power MOSFET direct drive pin
7
VCC Power supply voltage pin
8
TIM/OVP Pin for overvoltage protection and timer latch (joint use)
9
IFB Current feedback signal input pin from power-supply-output photocoupler
• AN8021SB
Pin No. Symbol
Description
1 PGND Grounding pin
2
VOUT Power MOSFET direct drive pin
3
PVCC Power supply voltage pin
4
SVCC Power supply voltage pin
5 TIM/OVP Pin for overvoltage protection and
timer latch combined use
6
IFB Power supply output photocoupler
current feedback signal input pin
7
N.C. N.C.
8
N.C. N.C.
9
N.C. N.C.
Pin No. Symbol
Description
10 N.C. N.C.
11
SS Soft start pin
12
RT Charge and discharge current of
triangular wave determining resistance
connection pin
13
CT Triangular wave generating capacitor
connection pin
14 N.C. N.C.
15 CLM(−) Pulse-by-pulse overcurrent protection
input pin
16 SGND Grounding pin
2
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