Datasheet > LD7750AGS

LD7750AGS

更新时间： 2024-10-15 01:07:43

品牌	Logo	应用领域
通嘉科技 - LEADTREND		/
页数	文件大小	规格书
19页	444K
描述
High Voltage Green-Mode PWM Controller

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LD7750AGS 数据手册

LD7750A

06/25/2010

High Voltage Green-Mode PWM Controller with

Over Temperature Protection

Rev. 00

Features

General Description

High-Voltage (500V) Startup Circuit

The LD7750A integrates several functions of protections,

and EMI-improved solution in a tiny package to minimize

the component counts and the circuit space.

Current Mode Control

Green Mode Control

UVLO (Under Voltage Lockout)

LEB (Leading-Edge Blanking) on CS Pin

Internal Frequency swapping

Internal Slope Compensation

Internal Over Current Protection

OVP (Over Voltage Protection) on Vcc

OLP (Over Load Protection)

External OTP through a NTC

500mA Driving Capability

The device provides functions of low startup current,

green-mode power-saving operation, leading-edge

blanking of the current sensing and internal slope

compensation.

Also, the LD7750A features more

protections like OLP (Over Load Protection), OVP (Over

Voltage Protection), and OTP (Over Temperature

Protection) to prevent the circuit being damaged under

abnormal conditions. The LD7750A features built-in

auto-recovery function for OVP on Vcc pin and OLP.

Applications

Furthermore, the LD7750A features frequency swapping

to depress radiation noise, providing an excellent solution

for EMI filter design.

Switching AC/DC Adaptor and Battery Charger

Open Frame Switching Power Supply

LCD Monitor/TV Power

Typical Application

Leadtrend Technology Corporation www.leadtrend.com.tw

LD7750A-DS-00 June 2010

12 3 4 5 6 7...19

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