1 2 3 4 5 REVISION HISTORY M1 SUM85N03-06P J1 A ECO REV _ 2 DESCRIPTION 2ND PROTOTYPE APPROVED DATE VLADIMIR O. 01-17-12 VINA 18V MAX E1 VCC EN1 D1 RED D3 LN1251C-TR CCLM3500 1 2 2 1 50V E3 E2 16 R4 10K 14 R5 OPT B CVCC 0.1uF R7 OPT 15 17 R3 30.1k EN2 A C1 0.039uF 2 RANGE 1 E5 R6 10K 11 13 CPO1 VIN1 EN1 12 U1 OUT1 LTC4370CDE VCC FETON1 GND FETON2 EP RANGE OUT2 EN2 COMP CPO2 VIN2 6 4 OFF1 GATE1 10 R1 0.002 1W 1% 2512 9 FETON1 8 OUTPUT FETON2 R2 0.002 1W 1% 2512 7 B E4 D2 RED D4 LN1251C-TR CCLM3500 1 2 2 1 3 GATE2 J2 CC 0.18uF OFF2 5 C2 0.039uF 50V C VINB 18V MAX C J4 M2 SUM85N03-06P E7 NOTES: UNLESS OTHERWISE SPECIFIED 1. ALL RES ARE IN OHMS, 0805. 2. ALL CAP ARE IN MICROFARAD, 0805. J5 GND CUSTOMER NOTICE E8 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. KIM T. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. VLADIMIR O. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. D THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 1 2 3 TECHNOLOGY TITLE: SCHEMATIC D TWO-SUPPLY DIODE-OR CURRENT SHARING CONTROLLER SIZE LTC4370CDE 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 DATE: REV. 2 DEMO CIRCUIT 1741A 01/17/2012, 11:31 AM SHEET 4 5 1 OF 1