5 4 3 2 1 REVISION HISTORY E12 ECO VDD - E13 REV DESCRIPTION APPROVED PRODUCTION 1 DATE 05/21/2013 ROBERT SMITH VDD 1 D1 RED INPUT P0WER FAULT 39 33 6 R7 140K BANANA E6 VDD R8 226K OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT VDD VDD VDD 1 UV 2 OV E10 UV OV E11 C 34 R10 20K JP1 R9 20K SENSE- 31 SENSE AUTORETRY 1 36 4 E2 INTVCC C1 1.0uF 16V TIMER 8 E1 B INTVCC JP2 TIMER DURATION GND 1.2 ms E20 2 ms PG I SET I MON VOUT R5 10K 5% 0805 R2 150K + COUT1 22uF 25V BANANA + COUT2 OPT E8 D4 GREEN R6 10K 5% 0805 OUTPUT P0WER R3 20K 37 RGATE 32 GND E7 GND BANANA D2 RED C POWER BAD CGATE OPT OPT 35 38 GATE 3 E18 E3 PG E4 SENSE ISET B E5 IMON 1 GND E16 2 GND GATE GND C2 0.1uF 16V TIMER 5 SENSE E17 FLT FB VOUT 7 3 FLT SENSE 2 ON 40 OFF 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 2 2 GND D3 GREEN 1 E15 GND R1 10K 5% 0805 1 R4 10K 5% 0805 D VOUT 2 CIN OPT 2 + 2 D5 SMAJ22A E14 E9 U1* 1 BANANA 1 D RSET OPT 0805 RMON 20K 0805 E19 3 E21 CUSTOMER NOTICE * ASSEMBLY OPTIONS ASS'Y -A -B A U1 CURRENT LTC4234 20A LTC4233 10A 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. M.HAWKINS VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. R. SMITH CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. NOTE: TITLE: SCHEMATIC SIZE 1. ALL RESISTORS ARE 0603 PACKAGE, 1% U.O.N. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 TECHNOLOGY 4 3 N/A SCALE = NONE DATE: 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only IC NO.LTC4233/LTC4234 REV. 1 DEMO CIRCUIT 2116A 05/21/2013 2 A 10/20 AMP INTEGRATED HOT SWAP CONTROLLER SHEET 1 1 OF 1