Datasheet4U Logo Datasheet4U.com

LD7838H - High Power Factor Flyback LED Controller

General Description

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.

Key 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 Applicati.

📥 Download Datasheet

Datasheet Details

Part number LD7838H
Manufacturer Leadtrend
File Size 789.13 KB
Description High Power Factor Flyback LED Controller
Datasheet download datasheet LD7838H Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
LD7838 High Power Factor Flyback LED Controller Leadtrend Technology
LD7830H High Power Factor Flyback LED Controller Leadtrend Technology
LD7831 High Power Factor Primary Side Flyback LED Controller Leadtrend Technology
LD7832 High Power Factor LED Controller Leadtrend Technology
LD7832A High Power Factor LED Controller Leadtrend Technology

Other Datasheets by Leadtrend

Part Number Description
LD7830 High Power Factor Flyback LED Controller
LD7835D High Power Factor LED Controller
LD7837 High Performance Primary Side Flyback LED Controller
LD7820 Primary-Side PWM Controller
LD7850 High Voltage Step-Down White LED Driver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LD7838H 12/28/2017 High Power Factor Flyback LED Controller with HV Start-up REV. 00 General Description 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 factor and TM control, the start-up time and resistor loss could be minimized efficiently. The circuit can easily achieve PF>0.90 to meet most of the international standard requirements.