AN8029 查看數據表（PDF） - Panasonic Corporation

零件编号

产品描述 (功能)

生产厂家

AN8029

Self-excited RCC pseudo-resonance type AC-DC switching power supply control IC

Panasonic Corporation 

Voltage Regulators

AN8029

Self-excited RCC pseudo-resonance type

AC-DC switching power supply control IC

s Overview

The AN8029 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.

2.4±0.25

6.0±0.3

3.3±0.25

Unit: mm

9

8

7

6

5

4

3

2

1

s Features

0.3

+0.1

–0.05

• Operating supply voltage range:

Stop voltage (8.6 V typical) to 34 V

• Output block employs the totem pole system.

3.0±0.3

SIP009-P-0000C

• Power MOSFET can be directly driven.

(output peak current: ±1 A maximum)

• Small pre-start operating current (95 µA 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

s Applications

• Televisions, facsimiles, printers, scanners, video equipment

s Block Diagram

Signal

U.V.L.O.

8.6 1.5

VV

8

TIM/OVP

VREF

(7.1 V)

TIM

FB 9

1

TDL

Low-side High-side

clamp clamp

0V

2.8 V

Current source

Switch

diode

IFB

0.1 V

QQ

RS

latch

R

0.32 V

S

0.7 V

IN

IN

6

VOUT

5 GND

4

CLM

CLM

1

Share Link: