NXP SSL5301T36W LED驱动方案
NXP公司的SSL5301T是可调光LED控制器,支持反激,降压和降压-升压拓扑,可选择低THD或低LED电流波纹模式,模拟IEC60929输入或数字控制输入调光,集成了起动JFET,具有多种保护,LED电流精度在+/-4%,主要用在100 V (AC), 120 V (AC)和230 V (AC) LED照明.本文介绍了SSL5301T主要特性和优势,框图,降压-升压电路,反激应用和降压电路,以及36W LED驱动演示板SSL5301DB1233主要特性和指标,电路图,材料清单和PCB设计图与反激变压器电路图.
The SSL5301T is a mains dimmable controller IC, intended to drive dimmable LEDs ingeneral lighting applications.
The main benefits of this IC include:
• High dimmer compatibility
• Selectable modes for high power factor or low ripple, allowing a wide LED power range
• Large dimming range
• Single stage topology for small PCB footprint
• Ease of design-in
• Integrated start-up JFET
• Low electronic Bill Of Material (BOM)
• Supports multi-lamp applications
• Various converter topologies supported
The IC drives an external switch for easy power scaling. It has been designed to start updirectly from the High-Voltage (HV) supply by an internal high-voltage current source.
Flyback, buck and buck-boost circuit topologies are supported. Primary side sensingprovides accurate output current control.
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