an8021l Panasonic Corporation of North America, an8021l Datasheet - Page 4

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

AN8021L, AN8021SB
Note) The number in ( ) shows the pin number for the AN8021SB.
4
Pin No.
(1)(16)
Oscillation frequency 2
Overcurrent protection delay time
Output voltage rise time
Output voltage fall time
Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
(11)
(12)
(13)
(15)
Electrical Characteristics at T
Terminal Equivalent Circuits
1
2
3
4
5
V
Parameter
REF
(13)
V
3
500
V
REF
REF
1
Reset
Equivalent circuit
(11)
I
2I
O
500
O
(12)
2
4
PWM
comp.
a
(15)
Symbol
PWM
comp.
t
25 C (continued)
Dry-CLM
f
OSC2
t
t
r
f
T
V
V
V
a
CC
CC
CC
30 C to 85 C
SS:
Soft start terminal.
When V
this pin is charged, and the output duty is de-
creased by inputting the capacitor voltage to the
PWM.
RT:
The terminal for connecting a resistor to deter-
mine the charge and discharge current of the
triangular wave.
CT:
The terminal for connecting a capacitor to gen-
erate the triangular wave.
CLM( ):
The input terminal for pulse-by-pulse
overcurrent protection. It is usually required to
attach an external filter.
GND, (PGND), (SGND):
Grounding terminal.
18 V under no load
18 V under no load
18 V under no load
Conditions
CC
is applied, the capacitor connected to
Description
Min
160
Voltage Regulators
Typ
200
35
25
Max
240
I/O
Unit
kHz
ns
ns
ns
I