LD7832数据手册Leadtrend中文资料规格书

描述 Description

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.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 enables the circuit designers easy to meet most safety requirements in either normal or abnormal test.

特性 Features

·Built-in 600V HV startup
·High power factor controller integrated
·High efficiency transition mode operation
·Accurate current regulation
·Wide range of UVLO (17.5 VON and 8 VOFF)
·VCC OVP (VCC over Voltage Protection)
·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

应用 Application

·LED Lamp、LED bulb Application