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SY58203A1 - Single Stage Flyback And PFC Regulator

Datasheet Summary

Description

The SY58203A1 is a single stage Flyback and PFC regulator targeting at LED lighting applications.

It integrates a 700V MOSFET to decrease physical volume.

Features

  • Integrated 700V MOSFET.
  • Primary side control eliminate to the opto-coupler.
  • Valley turn-on of the primary MOSFET to achieve low switching losses.
  • 0.3V primary current sense reference voltage leads to a lower sense resistance thus a lower conduction loss.
  • Low start up current: 15µA typical.
  • Reliable short LED and Open LED protection.
  • Power factor >0.90 with single-stage conversion.
  • Maximum frequency limit: 120kHz.

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Datasheet Details

Part number SY58203A1
Manufacturer Silergy
File Size 718.95 KB
Description Single Stage Flyback And PFC Regulator
Datasheet download datasheet SY58203A1 Datasheet
Additional preview pages of the SY58203A1 datasheet.

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Full PDF Text Transcription

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Applications Note:SY58203A1 Single Stage Flyback And PFC Regulator With Primary Side Control For LED Lighting General Description The SY58203A1 is a single stage Flyback and PFC regulator targeting at LED lighting applications. It integrates a 700V MOSFET to decrease physical volume. 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.
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