LD7833V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 LD7833V is a primary side regulation Flyback controller with power factor for TRIAC dimmable LED application.  The LD7833V provides constant current (CC) operation requiring neither photo-coupler nor secondary control circuit. It minimizes the components counts in a tiny package. Those make it easy to design for cost- effective applications. 
With high voltage start-up technology, high power factor and TM control, the start-up time and MOSFET switching losses could be minimized efficiently.
With completed protection built in this IC, such as over- voltage protection (OVP), over-current protection (OCP) and short circuit protection (SCP), the device is capable to meet the safety requirements.

特性 Features

·High Voltage (700V) Startup Circuit
·Transition Mode Operation
·High Power Factor
·Dimmable by TRIAC dimmer
·VCC Over Voltage Protection
·Adjustable Output OVP
·Over Current Protection
·Output Short Circuit Protection
·Over Temperature Protection
·Built-in Phase Angle Cut-off Function
·250mA/-500mA Driving Capability
·Internal Over Temperature Protection
·SOP-7/8 Package

应用 Application

·LED Lighting System