ECO REV 1 DESCRIPTION PRODUCTION APPR DATE CUYLER L. 10/01/2010 1 V+ E6 4.5V - 5.5V E1 VSENSE + 1 V+ U1 1 -5V - +80V LT1999IMS8* 1 2 VSUPPLY C3 VSHDN\ 100pF 0402 8 R2 IN+ VOUT 7 1 0 Ohm 3 IN- VREF V+ 1 GND E4 0.1uF 1 5 1 VSUPPLY 2V AT 4A VREF 6 C1 4 VOUT E3 R1* 2512 /SHDN E7 GND ASSY U1 R1 -A LT1999IMS8-10 0.05 ohm -B LT1999IMS8-20 0.025 ohm -C LT1999IMS8-50 0.01 ohm E5 C2 VSENSE - * 0.1uF E2 NOTES: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS ARE IN OHMS, 0603 2. ALL CAPACTORS ARE IN MICROFARADS, 0603 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 WWW.LINEAR.COM PCB DES. CL APP ENG. CUYLER L. SCALE = NONE LTC CONFIDENTIAL FORCUSTOMER USE ONLY TITLE: SCHEMATIC HIGH VOLTAGE BI-DIRECTIONAL CURRENT SENSE REV IC NO. SIZE LT1999IMS8-10/-20/-50 1 N/A DEMO CIRCUIT 1698A 10/2010 DATE: SH 1 of 1