SY5800AFBC数据手册Silergy中文资料规格书

描述 Description

The SY5800A 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 converter in constant on time operation to achieve high power factor.

特性 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 driver: 1A sourcing and 2A sinking
·Low start up current: 15μA typical
·Reliable short LED and Open LED protection
·Power factor >0.90 with single-stage conversion.
·Compact package: MSOP10 and SO8

应用 Application

·LED lighting
·Down light
·Tube lamp
·PAR lamp
·Bulb