5 4 3 2 1 REVISION HISTORY DESCRIPTION ECO REV B - APPROVED DATE LEO C Aug 11, 2014 JP5, JP6, JP7 Shunts move to Low Replaced LED's TP1 SCL SCL D D TP2 SDA SDA E14 GND E15 V1 TEMP 2 VCC Q1 FMMT3906TA 3 VOLT U1 LTC2991CMS JP1 E1 0.1uF VCC EXTVCC 3 DC590B(5V) JP8 VCC J1 V+ C2 (OPT) E2 4 V2 5 E3 C3 (OPT) V3 E4 V4 6 7 E5 C4 (OPT) V5 E6 V6 8 12 1 PWM R4 (OPT) V7 6 V3 SCL V4 SDA 11 SCL 10 SDA 10 V6 ADR0 V7 V8 ADR1 GND ADR2 13 9 11 14 C6 15 0.1uF R1 R2 4.99K 4.99K 1% 1% R3 4.99K 1% 8 6 5 3 Q2 MMBT3906-7-F 12 14 U2 24LC025-I/ST 7 E7 7 V5 1 JP3 4 5 2 VOLT 2 V2 9 TEMP R5 (OPT) VCC A0 WP A1 SCL A2 SDA VSS VUNREG 5V C CS SCK/SCL SDA/MOSI DC590B I2C INTERFACE MISO EEVCC EESDA EESCL EEGND NC 1 2 GND 3 JP2 PWM GND 3 VOLT 2 VCC GND 2 V1 3 C1 (OPT) 8 1 1 13 V2 TEMP B POWER 2 330 VCC RED C5 1 R6 16 V1 C VCC D1 1 EXTVCC 2.9V - 5.5V 3 4 WP VSS B R9 V7 E16 GPO V8 TEMP 1K 1 VCC 2 3 VOLT JP4 VCC E8 V8 VCC ADR2 1 2 E9 GND D2 330 PWM GRN ADR0 1 LOW JP6 E19 R8 Q3 2N7002TA HIGH 2 3 LOW JP5 GND HIGH 2 3 E10 VCC ADR1 1 HIGH R7 PWM PWM 1K 3 LOW E20 JP7 GND E21 E11 GND GND E12 GND E13 GND CUSTOMER NOTICE A NOTE: UNLESS OTHERWISE SPECIFIED. 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. 1. ALL RESISTORS 0603. 2. ALL CAPACITORS 0603. 5 4 3 2 TITLE: SCHEMATIC TEMPERATURE, VOLTAGE AND CURRENT MONITOR SIZE C:\PADS PROJECTS\1785B\SCH\1785B_REV1.DSN THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. TECHNOLOGY RB LEO C 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 DATE: IC NO. LTC2991CMS REV. DEMO CIRCUIT 1785B Aug 11, 2014 SHEET 1 1 1 OF 1 A