A B C D E REVISION HISTORY ECO REV DESCRIPTION 2 APPROVED PRODUCTION RUN JON M. DATE 1-6-10 R13 100 R12 1K D12 4 C13 100nF 100V JP1 OV1 C12 10nF 100V 1 3 5 R11 1K P1 EDGE FINGER C10 10nF 100V D10 R9 1K C9 10nF 100V D9 R8 1K C8 10nF 100V D8 J1 HEADER R7 1K 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 2 4 6 JP4 UV0 1 3 5 2 4 6 JP5 HYST 1 3 5 2 4 6 1 3 5 JP6 CC1 2 4 6 JP7 CC0 1 3 5 2 4 6 JP8 DC 1 3 5 2 4 6 1 3 5 2 4 6 VREF VREG GND 4 U1 LTC6801IG R10 1K 3 JP3 UV1 1 3 5 C11 10nF 100V D11 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 JP2 OV0 2 4 6 C7 10nF 100V D7 C6 10nF 100V OV1 36 C12 OV0 35 3 C11 UV1 34 4 C10 UV0 33 C9 HYST 32 6 C8 CC1 31 7 C7 CC0 30 8 C6 SLTB 29 C5 SLTOK 28 10 C4 DC 27 11 C3 EOUT 26 EOUTX 25 C1 14 V- VTEMP1 15 VTEMP2 16 17 18 C5 10nF 100V C18 1uF 50V SIN 24 SINX 23 VTEMP1 SOUT 22 VTEMP2 SOUTX 21 VREF EIN 20 VREG EINX 19 R15 100 R16 100 R17 100 C14 820pF 500V C15 820pF 500V C16 802pF 500V C17 820pF 500V R18 100 R19 100 R20 100 R21 100 D13 PRTR5V0U4D 1 2 3 1 D14 PRTR5V0U4D CH1 CH4 6 6 CH4 CH1 1 2 VN VP 5 5 VP VN 2 3 CH2 CH3 4 4 CH3 CH2 3 SE DIFF R22 1.5k 1% R25 100k NTC R26 1.15M C21 1000pF 100V 2 D15 LED1 (GRN) R27 10k 1% 1 JP12 OSC 1 3 5 2 4 6 D1-D12 are BZT52C6V2S ON OFF 1 OUT 2 GND 3 DIV V+ 6 GRD 5 SET 4 3 U2 LTC6906CS6 Q1 2N7002K JP11 LED 1 2 3 E4 ON SOUT E5 E6 EINX E7 EIN SOUTX OFF D16 CMHD457 1 2 D1 J2 BOTTOM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 2 4 6 8 10 12 14 2 R24 100k NTC C20 1000pF 100V C2 10nF 100V C1 10nF 100V LINK R14 100 R2 1K R1 1K 1 3 5 7 9 11 13 LOOP JP10 EINX R23 22.6k C3 10nF 100V D2 J3 TOP JP9 TOP I/O 1 2 3 4 5 6 E3 C23 1000pF 100V R3 1K D3 E2 C19 1uF 50V C4 10nF 100V 2 SLTB 3 R4 1K D4 E1 SLTOK 9 C2 NOTE: RC EFFECTS MAY CAUSE TEMP THRESHOLD CHANGE W / DC NOT SET TO VREG V- 5 13 R5 1K D5 V+ 2 12 R6 1K D6 1 1 2 R28 1M C22 10nF 100V R29 1M NOTE: UNLESS OTHERWISE SPECIFIED 1 CUSTOMER NOTICE 1. ALL RESISTORS ARE IN OHMS 0805 ALL CAPACITORS ARE IN MICROFARADS 0805 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. CONTRACT NO. APPROVALS PCB DES. K.L. ENG. JON M. B C TITLE: SCHEMATIC 12-CELL BATTERY STACK MONITOR SIZE N/A THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. A TECHNOLOGY 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 LTC Confidential-For Customer Use Only DATE: D IC NO. REV LTC6801IG DEMO CIRCUIT 1469B Wednesday, January 13, 2010 2 SHEET E 1 OF 1 1