DC2161A-B

5 4 3 2 1 REVISION HISTORY ECO REV __ DESCRIPTION 2 APPROVED DATE BOB S. 09-22-14 PRODUCTION D D J3 OUT R3 10 C1 0.1uF 0603 R4 OPT C2 OPT C3 100uF 25V 7343 R5 3.32k 0603 J4 D2 GREEN DISABLE 6 R8 24.9k 7 R9 75k 12 GATE UVL SOURCE UVH STATUS OV TIMER 11 E5 9 STATUS 10 TIMER GNDSW 3 JP1 HD1X3-079 5 IN C E10 C4 0.082uF GND ENABLE 1 2 3 4 ON UV/OV 2 * E6 GND 8 R7 12.4k R6 1.24M 0805 SENSE C U1 LTC4231 GND E4 2 E2 VOUT 12V, 3A E3 1 1 + 1 GND 1 J2 1/4W 1206 R1 10 0603 Q1B Si7960DP 6 3 5 4 D1 SMBJ24CA SENSE Q1A Si7960DP 2 E1 8 7 GATE IN 2 VIN 12V R2 0.015 SOURCE J1 E7 IQ B ON R11 100k E9 NOTE: UNLESS OTHERWISE SPECIFIED 1. ALL CAPACITORS ARE IN MICROFARADS, 0402. 2. ALL RESISTORS ARE IN OHM, 0402. A * ASSY A B U1 LTC4231-1 LTC4231-2 SUFFIX 1 2 ENABLE 1 2 3 4 5 6 ON EXT OFF 1 2 3 R10 100k JP3 HD2X3-079 4 GND NORMAL MEASURE IQ CUSTOMER NOTICE B 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 E8 JP2 IQ 3 TECHNOLOGY KIM T. BOB S. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only TITLE: SCHEMATIC MICROPOWER HOT SWAP CONTROLLER SIZE N/A SCALE = NONE 2 DATE: IC NO. LTC4231IMS-1/ 2 DEMO CIRCUIT 2161A Monday, September 22, 2014 REV. 2 SHEET 1 1 OF 1 A