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SY5839 Single Stage Buck PFC Controller

SY5839 Description

Application Notes: AN_SY5839 Single Stage Buck PFC Controller For LED Lighting Preliminary datasheet General .
The SY5839 is a single stage Buck PFC controller targeting at LED lighting applications.

SY5839 Features

* Valley turn-on of the MOSFET to achieve low switching losses
* Power factor >0.90 with single-stage conversion.
* Low start up current: 15ยต A typical
* Quick start up

SY5839 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

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Datasheet Details

Part number
SY5839
Manufacturer
Silergy
File Size
672.84 KB
Datasheet
SY5839-Silergy.pdf
Description
Single Stage Buck PFC Controller

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Single Stage Buck PFC Controller Silergy
Silergy SY5839-like datasheet