5 4 3 2 1 REVISION HISTORY ADR1 D 1 0 ECO REV - 1 V1 VCC 1 EXT 2 2 3 3 INT 1 TEMP 1 2 1 E5 V2 3 TEMP V2 V3 1 SDA ADR0 ADR1 VCC 4 2 E2 GND E3 V+ 1 V4 GND J1 VUNREG +5V SCL SDA TP1 TP2 6 JP6 E6 V3 V4 TEMP C4 470pF C 7 8 9 VCC C1 0.1uF EESDA 9 EEVCC 10 EESCL 11 EEGND 12 U2 24LC025-I/ST Q2 FMMT3904 8 7 R1 1 6 4.99K 1% R2 2 3 VOLT 4 6 MOSI/SDA 8 5 2 5 7 10 1 3 SCK/SCL 3 VOLT B V1 SCL 2 JP5 V3 D JP2 JP4 U1 LTC2990CMS 3 VOLT VCC 3 0 Q1 FMMT3906 C VCC EXT 3V - 5.5V 2 C3 470pF E4 V1 DATE 02/08/12 V+ ADR0 3 JP3 V2 E1 1 1 2 VOLT LEO CHEN VCC JP1 TEMP APPROVED DESCRIPTION PRODUCTION JP7 5 VCC A0 WP A1 SCL A2 SDA VSS 4.99K 1% E7 V4 13 1 14 2 B 3 4 C2 0.1uF E8 GND CUSTOMER NOTICE APPROVALS LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. A Leo C. C:\PADS PROJECTS\1338B\SCH\1338B_REV1.DSN THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 4 3 TECHNOLOGY RB A TITLE: SCHEMATIC TEMPERATURE, VOLTAGE AND CURRENT MONITOR SIZE IC NO. N/A SCALE = NONE 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only LTC2990CMS REV. DEMO CIRCUIT 1338B Thursday, February 16, 2012 DATE: 2 SHEET 1 1 1 OF 1