LD7835GL datasheet(1/13 Pages) LEADTREND

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LD7835

07/29/2015

1

Leadtrend Technology Corporation

www.leadtrend.com.tw

LD7835-DS-01 July 2015

Non-isolation Buck Solution

High Power Factor LED Controller

REV: 01

General Description

The LD7835 is a floating switch buck solution with Active

PFC (APFC) control for LED lighting. It is easy to design

with minimum cost and PCB size. The device operates in

transition mode (TM) and integrates with complete safety

requirement protections.

With power factor correction and TM control, the system is

enabled to achieve high PF and high efficiency and to

meet most of the international standard.

The LD7835 also features LED open protection (ZCD

OVP), LED short protection, over current protection (OCP),

and over temperature protection (OTP). It makes the

circuit designers easily to meet most of the safety

requirements in either normal or abnormal test.

Features

 High Power Factor Controller Integrated

 High Efficiency Transition Mode Operation

 Good Accurate Current Regulation

 Current Ripple Reduction (CRR) Function

 Wide Range of UVLO

 Built in OVP on VCC pin

 LED Open Protection

 LED Short Protection

 OCP (Cycle by cycle current limit)

 OTP (Over Temperature Protection)

 250mA/-250mA Driving Capability

Applications

 LED Lamp、LED bulb Application

Typical Application

GATE

COMP

VCC

ZCD

Rs

GND

EMI

Filter

AC

Input

CS

RUP

RDOWN

LD7835

RF (Option)

CF (Option)

Fig. 1 Application circuit

Số phần tương tự - LD7835GL

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Mô tả tương tự - LD7835GL

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