AN8021L データシートの表示（PDF） - Panasonic Corporation

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AN8021L

AC-DC switching power supply control IC

Panasonic Corporation 

Voltage Regulators

AN8021L, AN8021SB

AC-DC switching power supply control IC

s Overview

The AN8021L and AN8021SB are ICs which are

suitable for controlling the switching power supply us-

ing primary side control method.

Those are most suited for a switching power supply

of relatively small capacity. Less frequently used func-

tions are removed and only the necessary minimum func-

tions are incorporated, so that they are compact and very

easy to use.

Moreover, the internal settings are incorporated as

much as possible, thus cost down can be realized by de-

creasing the peripheral parts.

s Features

• It operates at a control frequency up to 700 kHz, realiz-

ing the output rise time of 35 ns and the output fall time

of 25 ns.

• Pre-start operating current is as small as 70 µA (typical)

so that it is possible to use a miniaturized start resistor.

• Output block employs totem pole method.

The absolute maximum rating of ±1.0 A (peak) allows

the direct drive of power MOSFET.

• Built-in pulse-by-pulse overcurrent protection circuit

• Built-in protection circuit against malfunction at low

voltage (on/off: 14.2 V/9.2 V)

• Equipped with timer latch function and overvoltage pro-

tection circuit.

• Two kinds of packages: 9-pin SIP, 16-pin SOP

s Applications

• Various power supply equipment

AN8021L

9

8

7

6

5

4

3

2

1

Unit: mm

4.3±0.3

1.0±0.25

2.7±0.25

0.3

+0.1

–0.05

1.4±0.25

1.35±0.25

SIP009-P-0000D

AN8021SB

6.50±0.30

16

9

Unit: mm

1.00±0.20

1

8

0.50±0.05

(0.45) 0.80

0.35±0.10

Seating plane

SSOP016-P-0225B

Seatng plane

1

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