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參數(shù)資料
| 型號： | AN8028 |
| 廠商： | PANASONIC CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Self-excited RCC pseudo-resonance type AC-DC switching power supply control IC |
| 中文描述： | 1 A SWITCHING CONTROLLER, PSIP9 |
| 封裝： | PLASTIC, SIP-9 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大小： | 133K |
| 代理商： | AN8028 |
Voltage Regulators
AN8028
Self-excited RCC pseudo-resonance type
AC-DC switching power supply control IC
1
I
Overview
The AN8028 is an IC developed for controlling the
self-excited switching power supply employing the RCC
pseudo-resonance type control method.
It is compact, equipped only with the necessary mini-
mum functions.
The maximum on-period and the minimum off-pe-
riod can be set separately by using the external capacitor
and resistor respectively.
It is suitable for the power supply of AV equipment.
I
Features
Operating supply voltage range:
Stop voltage (8.6 V typical) to 34 V
Output block employs the totem pole system.
Power MOSFET can be directly driven.
(output peak current:
±
1 A maximum)
Small pre-start operating current (95
μ
A typical) allows using a small size start resistor.
Built-in pulse-by-pulse overcurrent protection function
Incorporating the protection circuit against malfunction at low voltage (start/stop: 14.9 V/8.6 V)
Built-in overvoltage protection function (externally resettable)
Built-in timer latch function
Equipped with frequency (VF) control function.
9-pin single inline package expands the freedom of board design
I
Applications
Televisions, facsimiles, printers, scanners, video equipment
I
Block Diagram
SIP009-P-0000C
Unit: mm
9
8
7
6
5
4
3
2
1
0.3
+0.1
2
6.0±0.3
2.4±0.25
3.3±0.25
1
0
2
1
1
3.0±0.3
3
°
V
(7.1 V)
U.V.L.O.
8.6
V
1.5
V
Current source
0.1 V
CLM
TIM
Q
RS
latch
I
FB
Switch
diode
Q
R
S
Signal
IN
IN
V
OUT
6
GND
5
CLM
4
TDL
1
FB
9
TIM/OVP
8
V
C
7
T
2
T
3
0.7 V
0.32 V
Low-side
clamp
0 V
High-side
clamp
2.8 V
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| AN8029 | 制造商:Panasonic Industrial Company 功能描述:IC PANASONIC |
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