5 4 3 D5 2 1 CHRG + D3 RED 2 2 1 C2 22uF 50V 20% FAULT 0805 C13 4.7uF 50V 1210 D4 GRN C6 4.7uF 50V 1210 C3 4.7uF 50V 1210 E4 GND D L1 10uH 2 12V - 32V E3 SYSTEM LOAD CMSH3-40MA D 1 R1 0 1 1 E1 VIN 2 1 1 R2 5.1K 1206 R3 5.1K 1206 1 2 C12 0.01uF 0603 50V (OPT) C1 1uF 50V 0805 12 VIN SW CLP BOOST 11 SENSE 10 D1 CMSH3-40MA 2 R7 1.0Meg 3 LT3650EDD CHRG 5 FAULT BAT 9 3 SHDN NTC 8 2 D2 R4 0.05 1206 E5 C BAT 1 C CMPSH1-4 4 1 E2 GND 2 IHLP-2525CZ-01 1 2 JP1 1 1 U1 R5 100K 3 0 C9 100uF 10V 1210 20% TIMER GND RNG/SS 6 13 R8 0.05 1206 7 2 C4 10uF 10V 0805 10% C10 0.022uF 16V C11 0.022uF 16V VFLOAT* 2A E6 GND JP2 (OPT) 3 0 C8 0.1uF 16V 1 2 3 BAT GND NTC-EXT J1 DF3-3P-2DSA B UVLO SHDN JP1 1 1 0 JP2 1 0 X B E7 NTC 1 RUN C/10 E8 2 RNG/SS JP3 3 TIMER C7 0.68uF R6 (OPT) C5 0.1uF 16V * VERSION TABLE A Assembly Version U1 VFLOAT* DC1473A - A LT3650EDD - 8.4 8.4V DC1473A - B LT3650EDD - 8.2 8.2V 5 Unless noted: Resistors: Ohms 0402 1% 1/16W Capacitors: 0402 10% 10V 4 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. 3 CONTRACT NO. APPROVALS DRAWN J.Drew DATE 8/25/08 CHECKED TECHNOLOGY TITLE APPROVED ENGINEER J.Drew 8/25/08 DESIGNER SIZE CAGE CODE SCALE: 2 A LT3650EDD - 8.4, LT3650EDD - 8.2 2A Monolithic 2 Cell Li-Ion Battery Charger A Tuesday, April 14, 2009 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 FILENAME: DWG NO DC1473A - A/B SHEET 1 1 OF REV A 1