LD7830H中文资料LED 应用产品 : AC/DC LED照明控制器/驱动器数据手册Leadtrend规格书

描述 Description

The LD7830H is a HV start-up Flyback PFC controller, specially designed for LED lighting appliances. It operates in transition(TM) mode and integrates with complete protections required for safety and therefore it’s an excellent solution to minimize the components counts. Those make it ideal for cost- effective applications.
With HV start-up technology, high power factor and TM control, it’s capable to reduce the start-up time and resistor loss greatly. The circuit can easily achieve PF>0.90 to meet most internal standard requirements.  
With completed protection built inside this IC,  such as over voltage protection (OVP), over current protection (OCP), over load protection (OLP), over temperature protection (OTP), and short circuit protection (SCP), It enable the circuit to meet most safety requirements either in normal and abnormal test. 

特性 Features

·High voltage (600V) startup circuit
·High Power Factor Flyback PFC controller
·High-Efficiency Transition mode operation
·Wide UVLO (16VONand 7.5 VOFF)
·VCC OVP (Over Voltage Protection)
·OLP(Over Load Protection)
·OCP (Cycle by Cycle Current Limiting) Vcs=0.5V
·Internal OTP (Over Temperature Protection)
·500/-800mA Driving Capability
·Internal OTP function

应用 Application

·LED Power Supply
·Flyback PFC Power Supply