SY5810 Datasheet (Silergy) - Single Stage Flyback And PFC Controller

SY5810, Single Stage Flyback And PFC Controller

The SY5810 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

SY5810 Features

* Primary side control eliminates 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.

* Internal high current MOSFET dri