RDK-347

Title Reference Design Report for a 12.6 W, TRIAC Dimmable, High Efficiency (>86%) Isolated Flyback, Power Factor Corrected (>0.97) LED Driver Using LYTSwitchTM LYT4313E Specification 90 VAC – 132 VAC Input; 34 V, 370 mA Output Application Down Light LED Driver Author Applications Engineering Department Document Number RDR-347 Date February 11, 2013 Revision 1.2 Summary and Features  High efficiency, ≥86% at 120 VAC  Low cost  Single-stage converter  Single sided PCB  Low component count  Works with a wide rand of leading edge and trailing edge TRIAC dimmers  Wide dimming range  No pop-on, reduced dead band and very fast start-up  Enhanced user experience  Flicker-free, fast monotonic start-up (