5 4 3 2 1 REVISION HISTORY D1 SMAJ22A 3 E2 FB OV GATE INTVCC ISET 17 5 PG TIMER 3 2 1 JP2 AUTORETRY 1 2 3 E12 INTVCC R6 20k 10 IMON D5 LN1251C (RED) RGATE OPT COUT1 + 22uF 25V 7343 COUT2 + OPT E4 C GND D4 LN1351C (GREEN) E8 11 PG E10 15 ISET E11 14 IMON RMON 20k 0805 RSET OPT 0805 B OFF ON APPROVALS LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; TECHNOLOGY HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. KIM T. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. VLADIMIR O. TITLE: SCHEMATIC APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only A 5A INTEGRATED HOT SWAP CONTROLLER SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 R3 3.3k VOUT 12V / 5A C2 0.1uF 16V CUSTOMER NOTICE 2. INSTALL SHUNTS AS SHOWN. 13 R5 3.3k 2 4 FLT GND E9 1. ALL RESISTORS ARE IN OHMS, 0402. ALL CAPACITORS ARE IN MICROFARADS, 0603. R4 150k CGATE OPT 12 NOTES: UNLESS OTHERWISE SPECIFIED VOUT 1 UV 9 8 7 R8 20k E7 JP1 TIMER DURATION 2ms 12ms A 09-08-11 2 E6 OUT OUT OUT 1 2 C1 1uF 25V B VLADIMIR O. 1 2 R10 226k VDD VDD SENSE TIMER 1 16 E5 R7 20k FLT 1ST PROTOTYPE U1 LTC4232IDHC D3 LN1251C (RED) R9 140k OV DATE R2 3.3k OPT D2 LN1351C (GREEN) GND UV APPROVED 2 E3 + CIN1 1 1 R1 3.3k C 1 DESCRIPTION D 6 VDD 12V REV _ VDD E1 2 D ECO 4 3 IC NO. N/A SCALE = NONE DATE: REV. LTC4232IDHC 1 DEMO CIRCUIT 1886A 09/08/2011, 11:34 AM SHEET 1 2 1 OF 1