NXP SSL2101 7.5W反激LED驱动参考设计
发布时间：2011-7-27 13:16
发布者：Liming
|
采用NXP公司 SSL2101 的7.5W 120V可调光的LED驱动器的参考设计采用反激式转换器，提供隔离的解决方案。参考设计支持5个LED（输出电流470mA）和7个LED(输出电流340mA)负载，输出功率大约为7.5W，效率大约为72%，适合于GU10灯。本文介绍了7.5W反激LED驱动参考设计主要指标，驱动5个和7个LED的演示板电路图以及相应的材料清单和PCB布局图。 SSL2101 120 V 7.5 W GU10 flyback reference board This document explains the operation and application of a 7.5 W 120 V dimmable LED driver featuring the SSL2101. The demo board has a form factor that is compatible with the base of a GU10 LED lamp. The board employs a flyback converter to provide an isolated solution for mains-dimmable LED recessed-light applications. The board is available in two different versions, designed to support both a 5-LED and 7-LEDs load with an output power of approximately 7.5 W. The board operates at approximately 45 kHz and produces a regulated output current of 470 mA for the 5-LED load or 340 mA for the 7-LED load, with an efficiency of around 72 %. Both versions are fully compliant with EMC regulations. Key features of the board include: • Deep dimming capability • Wide dimming compatibility • Small form factor tailored to fit a GU10 lamp • Cost effectiveness 
图1。SSL2101演示板外形图（顶视图） 7.5W反激LED驱动参考设计主要指标： 
图2。驱动5个LED的演示板电路图 
图3。驱动7个LED的演示板电路图 5个LED负载的SSL2101 120 V 演示板材料清单： 
7个LED负载的SSL2101 120 V 演示板材料清单： 
图4。演示板元件布局图 
图5。演示板变压器主要指标 详情请见： http://www.nxp.com/documents/user_manual/UM10479.pdf |
网友评论