LD7838H - Leadtrend

LD7838H High Power Factor Flyback LED Controller

The LD7838H is a 700V HV start-up flyback PFC controller, specially designed for LED lighting. This device operates in transition mode(TM) and integrates with completed protections required. It minimizes the components counts in either SOP-7 package. Those make it easy to design with for cost-effective applications. With HV start-up technology, high power f.

Features

 High voltage (700V) startup circuit for 305VAC
 High Power Factor Flyback PFC controller
 High-efficiency Transition mode operation
 Low Operation Current and Fast start up
 Accurate OLP Compensation for High/ Low Line
 BNI/ BNO Detection Function by HV pin
 Wide UVLO (16.5 Von and 8 Voff) Range
 Cycle by Cycle Current Limiting for Over Current Protection
 OVP (Over Voltage Protection) Function by ZCD and VCC pin
 Internal OTP function Applications
 LED Power Supply
 LED Light Bulb/Tube LED+ LED- VCC HV OUT CS LD7838H ZCD COMP GND Constant current and voltage output appli.