Schematic for the LV5012MD2GEVB Evaluation Board AC1 F1 10/1W 6 LEDs in series, 2 parallel [LED: CREE XLamp MX-3S LEDs] 15/2W R21 1k/1W AC INPUT AC2 R23 VR1 C4 0.1uF /630V R1 L1 15/2W 0 C1 D1 S1ZB60 0.033uF /AC250V R2 L2 0 1.0mH C3 0.33uF /450V C2 0.1uF /630V R3 680k R7 1.0k R5 680k R8 12k 1 2 Transformer T1 specifications Inductance value 2-6 inductance L1 = 325uH Turns ratio (2-6) : (5-3) = 3.3 : 1 3 4 5 6 C5 150pF 5/15/2014 LED- R4 5.6k R6 27k R9 0 C8 4.7uF /50V D3 R14 MMSD103 0 T1 3 OUT DML GND 6 R12 22 100k 13 VIN 12 GND CS ENB REF_IN ACS TRC ALC_C 11 LED+ Q1 NDD03N50 R11 4.7Meg 10 9 8 C6 0.1uF -1- 39k D4 MURS240T3G R13 14 NC 7 REF_OUT R18 5 U1 LV5012MD HV 2 C9 220uF /80V C7 1uF R16 0.82 R17 0.82 www.onsemi.com