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SY5830B - Single Stage Flyback And PFC Controller

Description

The SY5830B is a single stage Flyback and PFC controller targeting at LED lighting applications.

It is a primary side controller without applying any secondary feedback circuit for low cost, and drives the Flyback converter in the quasi-resonant mode to achieve higher efficiency.

Features

  • Primary side control eliminates the opto-coupler.
  • Valley turn-on of the primary MOSFET to achieve low switching loss.
  • Power factor >0.90 with single-stage conversion.
  • Reliable short LED and Open LED protection.
  • Quick start up.

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Datasheet preview – SY5830B

Datasheet Details

Part number SY5830B
Manufacturer Silergy
File Size 479.53 KB
Description Single Stage Flyback And PFC Controller
Datasheet download datasheet SY5830B Datasheet
Additional preview pages of the SY5830B datasheet.

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Full PDF Text Transcription

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Applications Note: SY5830B Single Stage Flyback And PFC Controller With Primary Side Control For LED Lighting General Description The SY5830B is a single stage Flyback and PFC controller targeting at LED lighting applications. It is a primary side controller without applying any secondary feedback circuit for low cost, and drives the Flyback converter in the quasi-resonant mode to achieve higher efficiency. It keeps the Flyback converter in constant on time operation to achieve high power factor. It adopts special design to achieve quick start up and reliable protection for safety requirement.
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