Datasheet > LD7832GR

LD7832GR

更新时间： 2024-10-15 01:07:11

品牌	Logo	应用领域
通嘉科技 - LEADTREND		/
页数	文件大小	规格书
16页	514K
描述
High Power Factor LED Controller with HV Start-up

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LD7832GR 数据手册

LD7832

4/12/2013

High Power Factor LED Controller with HV Start-up

REV: 00

General Description

Features

The LD7832 is a buck solution with high PFC control for

LED lighting. It features HV start-up, easy to design with

minimum cost and PCB size. The device operates in

transition(TM) mode and integrates with complete safety

requirement protections.



Built-in 600V HV startup

High power factor controller integrated

High efficiency transition mode operation

Accurate current regulation

Wide range of UVLO (17.5 V_ONand 8 V_OFF

VCC OVP (VCC over Voltage Protection)

)

With HV start-up technology, high power factor and TM

control, the system is enabled to achieve high PF and

high efficiency to meet most of the international standard.

The LD7832 also features LED open protection (OVP),

LED short protection (ZCD UVP), over current protection

(OCP), CS short protection (CSSP), open feedback

protection and over temperature protection (OTP). It

makes the circuit designers easily to meet most safety

requirements in either normal or abnormal test.

ZCD OVP (Adj. Output Voltage Protection)

(Option: with ZCD OVP disabled, LD7832A)

ZCD UVP (ZCD under voltage protection)

OCP (Cycle by cycle current limit)

CSSP (CS short protection)



Open feedback protection

OTP (Over Temperature Protection)

250/-500mA Driving Capability

Applications



LED Lamp、LED bulb Application

Typical Application

Option

R_ZCD

ZCD

VCC

GND

COMP

GATE

Input

EMI

Filter

Fig. 1 Application circuit

Leadtrend Technology Corporation www.leadtrend.com.tw

LD7832-DS-00 April 2013

12 3 4 5 6 7...16

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