5 4 3 2 1 REVISION HISTORY ECO E1 F1 DESCRIPTION APPROVED DATE 4 PRODUCTION GEORGE Q. 11/07/11 L1 1Amp L2 V1 2 90 - 270VAC 50/60Hz 750uH 320VAC C1 47nF 2 D B1 600V 0.8A + - 1 3 4 310VAC 3 L 1 D REV 39mH R1 C2 4 E2 N C3 47nF 400V 249 1% R2 249 1% 1210 E3 D1 T1 7508111417 220nF 450V D2 1210 5 R3 100k BAV20W-7-F LED+ 0.5A / 28V DFLS1200-7 Wurth Elektronik + 10 D3 9 CMZ5938B C4 330uF 50V + R4 8.06k 1% C5 330uF 50V 1206 4 8 R5 20 INTVCC C R11 590k 1% R7 499k 1% R8 499k 1% R9 130k 1% 1206 1206 1206 R12 499k 1% R13 499k 1% 1206 Q2 1206 C6 R10 2k 10uF 50V 1206 E4 1 C7 2200pF C 2 D4 SMBJ170A-13-F 1210 R14 100k LED- 7 R6 4.53k 1% C8 4.7pF D5 3 D6 CMMR1U-06 MMBT3906 C9 2.2uF 16V 11 BAV20W-7-F R16 3.48k 1% R15 32.4k 1% VIN 16 10 DCM VIN_SENSE FB 9 Q1 FQPF7N65C TO-220F R17 1 C10 0.1uF GATE 4 R19 15k R21 100k FAULT B 3 2 12 R22 10.7k 1% SENSE 15 VREF INTVCC CTRL3 INTVCC 5 20 CTRL1 R18 40.2k 1% 14 13 R20 0.100 1% C11 4.7uF 25V FAULT B 0805 CTRL2 COMP- NC COMP+ CT GND 6 17 C13 8 C12 0.022uF 7 U1 LT3799EMSE 0.1uF CUSTOMER NOTICE A NOTES: UNLESS OTHERWISE SPECIFIED, 1. RESISTOR VALUES ARE 5%. 2. CAPACITORS AND RESISTORS ARE 0603. 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. APPROVALS PCB DES. TECHNOLOGY MI APP ENG. GEORGE Q. 5 4 3 TITLE: SCHEMATIC ISOLATED TRIAC DIMMABLE LED DRIVER SIZE C:\PADS PROJECTS\MIKEITURRALDE\1775A\1775A-4\SCH\1775A_REV4.DSN THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only N/A SCALE = NONE 2 IC NO. REV. LT3799EMSE DEMO CIRCUIT 1775A DATE: Thursday, February 02, 2012 SHEET 1 1 4 OF 1 A