Datasheet > SA7527S

SA7527S

更新时间： 2024-11-09 06:10:03

品牌	Logo	应用领域
士兰微 - SILAN		功率因数校正控制器
页数	文件大小	规格书
8页	258K
描述
POWER FACTOR CORRECTION CONTROLLER OF CRITICAL DUCTING

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SA7527S 数据手册

SA7527

POWER FACTOR CORRECTION CONTROLLER OF CRITICAL DUCTING

DESCRIPTION

The SA7527 provides simple and high performanacective power

factor correction. The SA7527 is optimizedfor electronic ballasts and

low power and high•density power supplies which requmireinimum

board size, reducedexternal components and low power dissipation

Because the R/C filter is included in the current sense block

external R/C filter is not necessary. Special circuitry has also been

added to prevent no load runaway conditions. Regardless ofthe supply

voltage, the output drive clamping circuit limitshe overshoot of the

power MOSFET gate drive. It greatly enhances the system reliability.

DIP•8•300•2.54

SOP•8•225•1.27

FEATURES

* Internal start•up timer

ORDERING INFORMATION

* Internal R/C filter eliminates the need for an external R/C filter

* Very precise adjustable output over voltage protection

* Zero current detector

Device

SA7527

SA7527S

Package

DIP•8•300•2.54

SOP•8•225•1.27

* One quadrant multiplier

* Trimmed 1.5% internal band gap reference

* Under voltage lockout with 3V of hysteresis

* Totem pole output with high state clamp

* Low start•up and operating current

* 8•pin DIP or 8•pin SOP

APPLICATIONS

* Electronic ballast

* SMPS

BLOCK DIAGRAM

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

Http: www.silan.com.cn

REV:1.0

2005.07.22

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