5 4 3 2 1 REVISION HISTORY ECO RSNUB 100 R4 2.2k 1206 1 1 2 RVCC 0 Q1 PZTA42 OPT COUT1 COUT2 10uF 50V 1210 1 RLED4 3.3k 1206 * 2 OUT SENSE 2 3 DGATE SOURCE 4 5 DLED5 LN1251C RED D2 BAS521 15 C UV R7 453k R8 21k 13 11 14 TMR ENOUT COV 1nF 100V FB 12 OV FLT GND ROV2 21k EP CUV 100nF 100V 9 LED DRIVER SHDN E8 GND E5 CTMR 4.7uF 10V J4 E4 GND B [1] D 1 8 RUV2 66.5k HGATE 7 10 2 DLED3 BAS521 1 RLED3 3.3k 1206 VCC D1 CMZ5945B 68V 2 C 6 1 C1 100nF 100V RLED2 200 COUT3 COUT4 10uF 50V 1210 OPT U1 LTC4364HDE- 3 1 2 QLED2 MMBT3904 DLED4 LN1351C GREEN OUTPUT [2] 15V 15V CHG 10nF 100V 2 1 RESR 0.1 3 QLED1 PZTA42 1206 D7 D6 DDZ9702S DDZ9702S 1 2 1 4 3 4 1 1 J3 OUTPUT R5 10 D3 ES1G DATE MITCHEL L. 09-12-12 1 RUV1 249k 1206 RSNS 0.020 8 7 6 5 4 2 ROV1 249k 1206 1 DLED2 LN1251C RED D4 SMAJ24A 2 DLED1 LN1351C GREEN RLED1 249k 1206 3 2 1 3 M2 FDS3672 2 2 INPUT APPROVED 1ST PROTOTYPE E3 1 J1 2 INPUT [1] DESCRIPTION 1 1812 M1 FDB33N25 1 D CSNUB 10nF 500V 1210 E2 REV __ E14 SHDN E12 FLT E11 ENOUT E10 TMR J2 E6 GND B [2] INPUT RANGE DC OPERATING DC SURVIVAL 1ms TRANSIENT OVERVOLTAGE LOCKOUT SURGE RIDE-THROUGH 6.6V TO 26V -24V TO +80V 250V 16.8V ISO-7637-2 WAVEFORM 5A ASSY DC2027A-A DC2027A-B U1 LTC4364HDE-1 LTC4364HDE-2 TOP MARK 43641 43642 MAXIMUM LOAD CURRENT LIMIT 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. MITCHELL L. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. A NOTE: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS AND CAPACITORS ARE 0805. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 4 3 28.7V -20V TO +30V OUTPUT CURRENT BEHAVIOR LATCH OFF AUTO RETRY CUSTOMER NOTICE 5 OUTPUT RANGE REGULATION VOLTAGE DC BACKFEED PROTECTION * GND TECHNOLOGY 2 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 12V SURGE STOPPER WITH IDEAL DIODE SIZE N/A SCALE = NONE 1A 2.5A DATE: IC NO. LTC4364HDE-1/-2 REV. 1 DEMO CIRCUIT 2027A 09/12/2012, 10:51 AM SHEET 1 1 OF 1 A