Datasheet > LD7552IS

LD7552IS

更新时间： 2024-10-14 05:41:39

品牌	Logo	应用领域
其他 - ETC		控制器
页数	文件大小	规格书
10页	213K
描述
GREEN MODE PWM CONTROLLER

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

LD7552IS 数据手册

2/21/2005

Green-Mode PWM Controller

General Description

Features

The LD7552 is a low cost, low startup current, current mode

PWM controller with green-mode power-saving operation.

The integrated functions such as the leading-edge blanking

of the current sensing, internal slope compensation and the

small package provide the users a high efficiency, minimum

external component counts, and low cost solution for AC/DC

power applications.

High-Voltage CMOS Process with Excellent ESD

Protection

Very Low Startup Current (Typical 5 A)

Under Voltage Lockout (UVLO)

Current Mode Control with Cycle-by-Cycle Peak

Current Limiting

Leading-Edge Blanking on CS Pin

Programmable Switching Frequency

Internal Slope Compensation

The special green-mode control does not only achieve low

power consumption but also offer a non-audible-noise

operation when the LD7552 operates under light load or no

load condition.

Proprietary Green-Mode Control for Power Saving

Non-audible-noise Green Mode Control

500mA Driving Capability

Applications

The LD7552 is designed for the switching adaptor with

30W~60W output. The LD7552 is offered in both SOP-8 and

DIP-8 package.

Switching AC/DC Adaptor and Battery Charger

Open Frame Switching Power Supply

384X Replacement

Note: Please see Application Information

Patent pending

Typical Application

EMI

Filter

input

VCC

40V

UVLO

OUT

16.0V/

11.4V

LD7552

OSC

Control

Logic

photocoupler

COMP

Divider

TL431

GND

Leadtrend Technology Corporation

LD7552-DS-00 February, 2005

12 3 4 5 6 7...10

中文翻译

下载PDF

与LD7552IS相关器件

型号	品牌	获取价格	描述	数据表
LD7575	ETC	获取价格	电源控制IC
LD7575B	ETC	获取价格	Green-Mode PWM Controller with High-Voltage Start-Up Circuit
LD7575PN	ETC	获取价格	Green-Mode PWM Controller with High-Voltage Start-Up Circuit
LD7575PS	ETC	获取价格	Green-Mode PWM Controller with High-Voltage Start-Up Circuit
LD7576	ETC	获取价格
LD7591	LEADTREND	获取价格	Transition-Mode PFC Controller with Fault Condition Protection
LD7591GN	LEADTREND	获取价格	Transition-Mode PFC Controller with Fault Condition Protection
LD7591GS	LEADTREND	获取价格	Transition-Mode PFC Controller with Fault Condition Protection
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,