VIN D8 - TP2 1 10uF 35V 3 2 MBR230LSFT1 R30 10K PROG SGND R5 100K CHG TP12 ICL TP11 R12 0.1uF 6.04K * JP2 4.1V 4.2V 2-3 2-3 8.2V 8.4V 2-3 1-2 12.3V 12.6V 1-2 2-3 16.4V 16.8V 1-2 1-2 * 0.1uF C3 10uF 25V D1 C11 10 Q1-1 SiA914DJ G1 BAT L1 S1 D2 Q1-2 SiA914DJ BGATE 16 1 2 10uH R7 3 4 0.05 1% TP9 31.2K C9 10uF 25V D1 GND 21 ** ** 10 FVS1 CSP 15 CSN 14 S2 R8 BAT 12.6V@2A GND MBR230LSFT1 TP10 R9 3.01K 3.01K BAT 11 VBAT 2 1 Default EXPOSED PAD R19 C5 294K 10pF 9 FVS0 3 2 1 INTV D7 CMDSH-3 C7 2.2uF R31 G2 2 3 JP2 R1 5.11K CLN TGATE 19 ** 1 INTV 3 2 1 12 ITH 13 PROG 26.7K R18 R17 0 3 JP1 TP4 BOOST 20 C2 0.1uF SW 18 4.7nF R26 JP1 CLN 1 INTV 17 4 ICL 6 SHDN C12 C6 SGND TP3 LTC4009CUF-2 (OPTION) CLP 2 5 DCDIV TP5 TP7 * JP1, JP2 SETUP LTC4009CUF-1 OPTIONAL CIRCUIT 3 DCIN 7 ACP 8 CHG ** GND R29 12.4K R33 1.21K R16 165K ACP TP15 Q2 SiB415DK 3 U1 LTC4009CUF-2 R15 100K ICL D2 MMSZ5248BS R25 VIN Vout TP8 100K TP6 SHDN VOUT 3 4 0.05 1% VIN VCC CHG R2 C14 0.1uF Wall Adapter Input CUI-PJ002A 6 - 18V VCC ACP 1 2 4 J1 GND C8 0.1uF 50V + C1 1 2 5 6 TP1 + Vin 6 - 18V 2A ** = No stuff. Part are only used for LTC4009CUF. Resistor Tolerance of R17 and R19 is 0.25%. 12.6V SGND Note: Remove all jumpers if LTC4009CUF is used. Use R17 and R19 instead. EXT VCC C/10 CHG R22 300 D5 (YELLOW) ICL R23 300 3 4 5 6 1 2 SENSE C16 0.1uF C13 10uF 16V 2 R27 VIN 8 C15 1uF 25V SHDN 5 10 THM SDA SCL ACP J2 BATTERY R24 300 SCL ACP 1 THM 1 VOUT Q8 2N7002 D6 (GREEN) BAT ICL TP14 3 2 3 D3 (YELLOW) 3 1 1 3 3 3 D4 (GREEN) Q4 2N7002 2 CHG OFF OFF ON GND Q13 TP0610T EXT U2 INT LT1129CS8-5 2 GND 1 VCC GND Q6 TP0610T ON R21 300 INTERNAL VCC 3 1 VOUT 7 1 3 R28 28.0K JP6 EXT_VCC 6 Q5 TP0610T 2 2 2 2 Q7 1 MMBT3906WT1 GND R32 499K JP7 SHUTDOWN 2 3 JP3 LED PWR 2 OFF ON 1 TP13 3 VCC 1 JP5 VCC SELECT VCC SDA THM 1 2 3 4 5 6 7 8 9 10 (+) (+) CLOCK CLOCK DATA DATA (T) (T) (-) (-) AMP-787441-1 Option connector for Smart Batteries LOGIC SUPPLY 5V 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. P1 AMP 1-1734530-3 8 15 7 14 6 13 5 12 4 11 3 10 2 9 1 To Optioinal DC410A or DC1223A CONTRACT NO. APPROVALS DRAWN June Wu DATE 4/3/07 TECHNOLOGY TITLE LTC4009CUF-2 Three Cell 12.6V@2A Switching Battery Charger CHECKED APPROVED ENGINEER Mark Gurries DESIGNER Monday, July 07, 2008 4/3/07 SIZE 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 CAGE CODE DWG NO REV DC1104A SCALE: FILENAME: SHEET A 1 OF 1