REVISION HISTORY ECO R17 10k REV DESCRIPTION APPROVED DATE 2 PRODUCTION GEORGE Q. 03/01/11 0805 E1 L1 3.3mH B1 3 L 90 - 270VAC 50/60Hz C1 33nF 2 HD06 + - L3 1 3.3mH L2 3.3mH R30 750 1210 4 E2 N C4 68nF 450V R24 10k D7 CMSH2-40L C2 22nF 630V 1812 D2 R32 10k LED+ 3 R3 100k 1% BAV20W-7-F 0805 E4 T1 20:5:1 8 + 7 4 C22 1500uF 6.3V ELEC 1A/4V R10 100 1210 6 R11 499k 1% 1206 R1 100k 1206 50V D9 C13 2.2nF 250V CMZ5937B C20 2.2nF 400VAC R2 200k 0805 2 D8 11 WE750813002REV01 VIN BAV20W-7-F 16 D1 VINSENSE CMMR1U-06 9 FB 1 CTRL1 R12 3.48k 1% LEDE5 1 10 R5 100k 1206 DCM R16 499k 1% 1206 R4 4.99k 1% C21 4.7pF C3 10uF 5 12 Q1 SPU04N60S5 600V R9 14 NC GATE 20 4 VREF R18 100k 1% R19 40.2k 1% 15 SENSE INTVCC CTRL2 13 INTVCC R20 24.9k 1% 3 C8 4.7uF 25V 0805 8 CTRL3 COMP7 COMP+ 5 GND FAULT FAULT C7 68nF NOTES: UNLESS OTHERWISE SPECIFIED, 1. RESISTOR VALUES ARE 5%. 2. CAPACITOR AND RESISTOR CASE SIZE ARE 0603. 17 6 CT FAULT R8 0.3 1% 1206 2 C6 0.1uF 16V U1 LT3799EMSE CUSTOMER NOTICE LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. APPROVALS PCB DES. TECHNOLOGY MI APP ENG. GEORGE Q. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only TITLE: SCHEMATIC ISOLATED LED DRIVER WITH PFC SIZE N/A SCALE = NONE IC NO. REV. LT3799EMSE DEMO CIRCUIT 1744A DATE: Friday, April 08, 2011 SHEET 1 2 OF 1