Datasheet > LD7591GS

LD7591GS

更新时间： 2024-10-15 01:11:19

品牌	Logo	应用领域
通嘉科技 - LEADTREND		功率因数校正
页数	文件大小	规格书
20页	432K
描述
Transition-Mode PFC Controller with Fault Condition Protection

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LD7591GS 数据手册

LD7591

3/4/2010

Transition-Mode PFC Controller with Fault Condition Protection

REV. 00

General Description

Features

The LD7591 is a voltage mode PFC controller operating on

transition mode, with several integrated functions of

protection, such as OVP, OCP, and Brown-in protection. It

reduces the components counts and is available in a

SOP-8 or DIP-8 package. Those make it an ideal design

for low cost applications.

Transition mode of PFC pre-regulator

Voltage mode control

Programmable max. on-time

Low Startup Current (<30μA)

UVLO (Under Voltage Lockout)

LEB (Leading-Edge Blanking) on CS Pin

Open-Feedback Protection and Disable Function

OVP (Over Voltage Protection)

OCP (Cycle by cycle current limiting)

800/-1200mA Driving Capability

Internal OTP function

It provides functions of low startup current, over voltage

protection, open feedback protection, disable function,

over current protection, under voltage lockout and

integrated LEB of current sensing. Unlike the traditional

current mode PFC controller, LD7591 is free from extra

rectified AC line voltage information to minimize the power

loss.

Applications

Adaptor of Output above 65W.

Open Frame Switching Power Supply

LCD TV Power Supply

The LD7591 will be disabled if INV pin voltage falls below

0.45V and the operating current rises over 65μA

LED Power Supply

Typical Application for Boost PFC

EMI

Input

Filter

GATE

VCC

ZCD

LD7591

INV

RAMP

COMP

GND

Leadtrend Technology Corporation www.leadtrend.com.tw

LD7591-DS-00 March 2010

12 3 4 5 6 7...20

中文翻译

下载PDF

与LD7591GS相关器件

型号	品牌	获取价格	描述	数据表
LD7707F-S617	FOXCONN	获取价格	Telecom and Datacom Connector, 7 Contact(s), Male, Right Angle, Solder Terminal, Locking,
LD7707F-S61R	FOXCONN	获取价格	Telecom and Datacom Connector, 7 Contact(s), Male, Right Angle, Solder Terminal, Locking,
LD7707F-S61V	FOXCONN	获取价格	Telecom and Datacom Connector, 7 Contact(s), Male, Right Angle, Solder Terminal, Locking,
LD7707H-S617	FOXCONN	获取价格	Telecom and Datacom Connector, 7 Contact(s), Male, Right Angle, Solder Terminal, Locking,
LD7707H-S61R	FOXCONN	获取价格	Telecom and Datacom Connector, 7 Contact(s), Male, Right Angle, Solder Terminal, Locking,
LD7707H-S61V	FOXCONN	获取价格	Telecom and Datacom Connector, 7 Contact(s), Male, Right Angle, Solder Terminal, Locking,
LD7707V-S617	FOXCONN	获取价格	Telecom and Datacom Connector, 7 Contact(s), Male, Right Angle, Solder Terminal, Locking,
LD7707V-S61R	FOXCONN	获取价格	Telecom and Datacom Connector, 7 Contact(s), Male, Right Angle, Solder Terminal, Locking,
LD7707V-S61V	FOXCONN	获取价格	Telecom and Datacom Connector, 7 Contact(s), Male, Right Angle, Solder Terminal, Locking,
LD7710	NEC	获取价格	14GHz, 40 W CW PPM FOCUSING, MINIMUM SIZE