STEVAL-ILL005V1 STMicroelectronics

STEVAL-ILL005V1 VIPer12A-E off line, constant current driver for high intensity LEDs Data Brief Features Drives from 1 to 4 LEDs Constant current output: 350 mA, 700 mA, 1.05 A (selectable) Input voltage range: 90 to 264 VAC 50/60 Hz Compliant with EN55022 class B for EMI STEVAL-ILL005V1 Description This board represents a low cost, high efficiency, high brightness multiple LED driver based on the integrated off-line switching regulator VIPer12A-E. The board is an off-line, constant current power supply capable of driving from 1 to 4 LEDs in series operating from universal mains input. The output current can be selected for compatibility with 1 W, 3 W and 5 W LEDs with a total output power of up to 6 W. November 2007 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4. Board schematic STEVAL-ILL005V1 1 Board schematic Figure 1. Schematic 2/4 F1 R1 J4 FUSE 6.8 5% 1W L1 Cramer CVP11-047 LED- J1 LED+ C11 D3 2 1 10 1 A K 0.047uF 2 10 1 1 21T STTH152 R12 2 1 2 2 180T 0.5 + + + D1 C1 C2 C7 600V,1A 10uF 220uF 4.7uF 1/2W DF06MGI 400V 400V 25V . R2 8 8 5 C3 R13 5 1 2 47pF 100 1kV 51T 5% R8 0.5 1/2W 10 6 1/4W 1/2W J2 6 Compostar45mH 5% Jumper 0 W1 C5 D2 1 2 STTH102 R14 1 2 4.7nF R4 100 0 0.5 5% U4 1/4W 1/2W 8 R3 J3 Drain 7 4 Jumper Drain Vdd 6 U3 Drain 5 6.2k Drain 5% 1/4W 1 Source 2 3 Tov l Fb R9 2.2K 1/2W 1 2 + C4 R10 C10 22uF VIPer12A R15 U2 Poly Cap 1K 50V 24k 1/4W 1 8 Out1 Vcc C6 C8 R11 2 7 0.33uF 0.1uF Ve1- Out2 1K 50V 0 3 6 Vref Ve2- R16 2.2k 4 5 Gnd Ve2+ 1/4W TSM103 R7 10K R5 750 3 4 4 3 1 2 K A 3 4 2 1 1 2 3 4 5 6 7 8 9 2 2 10 1 1 11 12 1 2 1 2