ECO REV 1 E1 DESCRIPTION PRODUCTION APPR DATE CUYLER L. 07/01/2010 E2 R11 IN 3.3V-60V OUT 0.1 Ohm 2512 R17 0 OHM 4A MAX E8 R7 100 V+ C7 0.1uF 3V 8 SENSE + SENSE - 2 E5 ASSY U1 -A LT6108IMS8-1 -B LT6108IMS8-2 1 V+ IOUT EN/RST IOUT 6 C6 LED2 1206 LED OPT R1 1.69k R3 10k 0402 3 COUT * E3 RESET 2 3V 1 7 R5 1k 0402 R6 100 U1 LT6108IMS8* COUT CIN R14 OPT E4 5 CIN GND R2 806 4 E6 GND NOTES: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS ARE IN OHMS, 0603 2. ALL CAPACTORS ARE IN MICRO FARADS, 0603 3. INSTALL SHUNTS AT J1 PIN 1+2 CUSTOMER NOTICE LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMERSUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT 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. 1630 McCarthy Blvd. Milpitas, CA 95035 PH: (408) 432-1900 APPROVALS PCB DES. CL APP ENG. CUYLER L. WWW.LINEAR.COM LTC CONFIDENTIAL FORCUSTOMER USE ONLY TITLE: SCHEMATIC PRECISION CURRENT SENSE WITH COMPARATOR AND REFERENCE SIZE SCALE = NONE N/A DATE: IC NO. 07/2010 LT6108IMS8-1/-2 DEMO CIRCUIT 1699A REV 1 SH 1 of 2 C1 1uF 1206 OUT SHDN SENSE V- 1 R8 13.7k 0402 1 C2 0.47uF C5 0.1uF 0402 4 U4 OPT 0 2 RST OUT GND V+ SET DIV 6 3V 5 IN **COMPONENTS ARE OPTIONAL ON DC1699A-B ASSEMBLY 2.7V-5V R16 2 R10 10k 0402 3 5 R12 1Meg 0402 4 R4 LT6991CS6 124k 0402 1 R13 392k 0402 SW1 RESET 2 JP1 RESET MAN RESET U3 AUTO 1 1 2 3 R18 1M 0402 2 R9 249k 0402 CUSTOMER NOTICE LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMERSUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT 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. 3 E7 TRIG OUT GND V+ SET DIV RESET 6 3V 8 3.3V-60V R15 V+ 3V V+ U2 LT3010EMS8 EN/RST 5 4 C4 0.1u 0402 LT6993CS6-1 1630 McCarthy Blvd. Milpitas, CA 95035 PH: (408) 432-1900 APPROVALS WWW.LINEAR.COM PCB DES. LTC CONFIDENTIAL FORCUSTOMER USE ONLY CL APP ENG. CUYLER L. TITLE: SCHEMATIC PRECISION CURRENT SENSE WITH COMPARATOR AND REFERENCE SIZE SCALE = NONE N/A DATE: IC NO. 07/2010 LT6108IMS8-1/-2 DEMO CIRCUIT 1699A REV 1 SH 2 of 2