主要特点
- 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
- 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
主要应用
概述
The SSL2109T, 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.
Applications
- Retrofit LED lamps
- Driver modules for LED lighting
