SSL2109AT数据手册Silergy中文资料规格书

描述 Description

The SSL2109AT, a controller-only device used to drive an external switch, is for applications up to 25 W (external MOSFET selection enables flexibility on efficiency and system cost) and extends the feature set with high power factor (0.9), universal mains, and isolated topologies.

特性 Features

·Flyback or Buck controller-only with external MOSFET
·Power-efficient boundary conduction mode
·Tight LED current regulation: better than 5%
·Direct PWM dimming possible
·Fast transient response via cycle-by-cycle control
·No need for binning on LED forward voltage
·Full set of internal protections
·Simple design-in
·“A” versions without short winding protection
·Support for high power factor (>0.9) and universal mains
·High efficiency: up to 95% measured on reference board
·Low bill of materials: only 14 components for full application
·Easy, low-cost manufacturing at high volumes
·High reliability: IC lifetime easily matches or surpasses LED lamp lifetime

应用 Application

·Retrofit LED lamps
·Driver modules for LED lighting