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參數(shù)資料
| 型號： | AN8021SB |
| 廠商： | PANASONIC CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | AC-DC switching power supply control IC |
| 中文描述： | 1 A SWITCHING CONTROLLER, 225 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 0.225 INCH, PLASTIC, SSOP-16 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 141K |
| 代理商： | AN8021SB |
Voltage Regulators
AN8021L, AN8021SB
AC-DC switching power supply control IC
1
I
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.
I
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
μ
A (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
I
Applications
Various power supply equipment
SIP009-P-0000D
AN8021L
Unit: mm
SSOP016-P-0225B
AN8021SB
Unit: mm
2
±
9
8
7
6
5
4
3
2
1
4.3
±0.3
1.0
±0.25
2.7
±0.25
1.4
±0.25
1.35
±0.25
0
±
0
±
1
±
2
0.3
+0.1
0
±
1
±
0
(0.45) 0.80
6
±
4
±
0.35
±0.10
6.50
±0.30
+
-
0
0.50
±0.05
1.00
±0.20
Seating plane
16
9
8
1
Seatng plane
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