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LD7838H - High Power Factor Flyback LED Controller

Datasheet Summary

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.

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.

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Datasheet preview – LD7838H

Datasheet Details

Part number LD7838H
Manufacturer Leadtrend
File Size 789.13 KB
Description High Power Factor Flyback LED Controller
Datasheet download datasheet LD7838H Datasheet
Additional preview pages of the LD7838H datasheet.

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Full PDF Text Transcription

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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.
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