REVISION HISTORY ECO REV - 1 DESCRIPTION PRODUCTION FAB APPROVED JIM D. DATE 05-28-10 D1 2 1 CMSH3-40MA VIN 17.7V - 34V E3 1 E4 L1 15uH 1 2 R5 100K 1 2 12 VIN VIN_REG U1 LT3652HVEDD SW BOOST D2 D5 11 D6 3 1 SENSE E2 CHRG 5 FAULT 1 3 2 JP1 R6 100K 1 3 0 1 6 0 7 NTC 8 C4 R8 20 OPT 13 R9 174k JP2 TP2 R10 309K 0603 + C5 100uF 20V 20% C6 10uF 25V 1206 10% C7 0.022uF 25V BAT 14.4V / 13.5V 2A C8 0.022uF 25V E6 GND 3 JP1 - JP2 SETTINGS VFB GND 2 E5 9 SHDN TIMER 1 6.2V R7 0.05 1206 1/4W TP1 1 CMSH3-40MA OPT 10 GND BAT 2 CMHZ4691 CMPSH1-4 4 D7 CMSH3-40MA 2 R3 5.1K 1206 R2 5.1K 1206 2 R1 1.33Meg MSS1038-153ML 1 C3 1uF 50V 0805 0 SHDN JP1 1 1 0 JP2 1 0 X R12 1.00Meg 1 UVLO C/10 R11 100K 0603 D8 1 2 1 2 3 1N4148WS-V J1 (OPT) BAT GND NTC DF3-3P-2DSA 2 JP3 TIMER E7 3 RUN GND 2 1 + R4 562K JP4 SYSTEM LOAD C2 10uF 50V 1210 2 D4 CHRG GRN LED-LN D3 FAULT RED LED-LN 1 2 R13 10k OPT D9 CMHZ4697 10V OPT C1 390uF 50V 20% 2 R14 100k OPT 1 1 Q1 Si2319DS OPT 1 E1 2 3 3 C9 4.7uF NTC Unless noted: Resistors: Ohms 0402 1% 1/16W Capacitors: 0402 10% 10V 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. NC APP ENG. JIM D. TECHNOLOGY 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 SLA 2A BATTERY CHARGER FOR SOLAR POWER SIZE N/A SCALE = NONE DATE: IC NO. REV. LT3652HVEDD DEMO CIRCUIT 1688A Wednesday, June 02, 2010 1 SHEET 1 OF 1