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SY5830B - Single Stage Flyback And PFC Controller

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.

Key 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.

📥 Download Datasheet

Datasheet Details

Part number SY5830B
Manufacturer Silergy
File Size 479.53 KB
Description Single Stage Flyback And PFC Controller
Datasheet download datasheet SY5830B Datasheet

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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.

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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.