SY5839 - Single Stage Buck PFC Controller

Product Overview

Silergy

Datasheet Details

Part number	SY5839
Manufacturer	Silergy
File Size	672.84 KB
Description	Single Stage Buck PFC Controller
Datasheet	SY5839 Datasheet
Additional preview pages of the SY5839 datasheet.

SY5839 Product details

Description

The SY5839 is a single stage Buck 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.

Features

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

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Published: Apr 25, 2019 |