1 2 3 4 5 REVISION HISTORY VIN 0V - 80V VIN E1 D1 SMAJ75A-13-F R2 51 E2 GND C2 1000pF 100V C1 0.1uF 100V 1206 VDD_SEL 1 2 3 4 5 6 VIN 12 4 DESCRIPTION APPROVED DATE MARK T. 10-26-12 PRODUCTION INTVCC 1 INTVCC EXTVDD 0.020 1% 2010 E4 10 ALERT 9 ADR1 ALERT R3 1 SDA TIE 2 10K 3 EXPOSED PAD A E5 /ALERT SENSE- LTC2945CUD INTVCC VOUT 5A GND U1 2 E8 E3 SENSE+ C3 0.1uF EXTVDD R1 11 VDD JP1 E6 REV __ VOUT HIGH VOLTAGE LINES A ECO SDAO 8 JP2 UNTIE E7 SDAO INTVCC 3 ADR0 B ADR1 ADR0 SDAI 1 ADIN HI 2 HI 2 4 FLOAT 3 FLOAT 3 4 LO 4 LO 1 JP3 GND EP 5 13 E9 7 SDAI E10 GND SCL 6 E11 SCL JP4 R4 (OPT) R5 (OPT) 0603 0603 B E12 VPU E13 GND R9 3.3K R10 3.3K E14 ADIN D2 GRN INTVCC D3 RED ALERT VLMS3000 VLMC3101 C SDA/SDAI QUICK EVAL DEMO ONLY SCL Q1 2N7002 INTVCC VPU /ALERT C J1 2 3 4 A0 VCC A1 WP A2 SCL VSS SDA 24LC025-I/ST TP1 (OPT) 8 R7 5.1K R8 5.1K 6 4 7 7 6 5 5 10 9 C4 0.1uF 11 12 14 CS NOTES: UNLESS OTHERWISE SPECIFIED SCK/SCL SDA/MOSI TO DC590B 1. ALL RESISTORS ARE IN OHMS, 0603. ALL CAPACITORS ARE IN MICROFARADS, 0603. 2. INSTALL SHUNTS AS SHOWN. MISO EEVCC EESDA CUSTOMER NOTICE EESCL EEGND NC 13 GND D 5V 8 1 R6 5.1K GND U2 VUNREG GND 2 3 1 MOLEX 87831-1420 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 1 2 APPROVALS 3 TECHNOLOGY KIM T. MARK T. TITLE: SCHEMATIC WIDE RANGE I2C POWER MONITOR SIZE N/A SCALE = NONE 4 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. LTC2945CUD DEMO CIRCUIT 1697A 10/26/2012, 06:09 PM REV. 4 SHEET 5 1 OF 1 D