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SY58203A1 Datasheet Single Stage Flyback And Pfc Regulator

Manufacturer: Silergy

Overview: Applications Note:SY58203A1 Single Stage Flyback And PFC Regulator With Primary Side Control For LED Lighting.

Datasheet Details

Part number SY58203A1
Manufacturer Silergy
File Size 718.95 KB
Description Single Stage Flyback And PFC Regulator
Datasheet SY58203A1-Silergy.pdf

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.

Key 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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