5 4 3 2 ECO REV - 1 REVISION HISTORY DESCRIPTION APPROVED B Replaced CLD1,CLD2,D1-D3 DATE DILIAN R. Aug 19, 2014 D D (SEE NOTE) SELECT PROTECTION 1 OV/OC, VIN = 0 TO 28V 2 2 Q1 SI1471DH-T1-E3 3 OV/OC/NV, VIN = -30V TO 28V U1 LTC4362CDCB-2 OV = OVERVOLTAGE OC = OVERCURRENT NV = NEGATIVE VOLTAGE JP2 IN C SENSE OUT 7 1 GATEP PWRGD 5 ON CLD1 CMJ3500 TR GND E4 OUT OUT R1 1k C1 10uF 10V E5 GND D1 GRN OUT 3 EXPOSED PAD C VIN VIN OUT 4 6 E1 LOW VOLTAGE PROTECTED OUTPUT 8 9 E2 CLD2 CMJ3500 TR GND E6 PWRGD D3 RED -VIN D2 ORN VIN R2 1.5K ON DISABLE 1 2 NOTES: UNLESS OTHERWISE SPECIFIED 3 ENABLE B JP1 D5 5.6V B 1. LTC4362 - 1 HAS LATCH-OFF OVERCURRENT E3 2. LTC4362 - 2 HAS AUTORETRY AFTER OVERCURRENT ON 3. ALL RESISTORS ARE IN OHMS, 0603. ALL CAPACITORS ARE IN MICROFARADS, 0603. 4. INSTALL SHUNTS AS SHOWN. J1 A J2 VCC 1 D- 2 2 D- D+ 3 3 D+ GND 4 VIN OUT 1 4 USB TYPE B CUSTOMER NOTICE VCC 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. GND USB TYPE A TECHNOLOGY 4 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY MONOLITHIC PROTECTOR OVERVOLTAGE / OVERCURRENT 3 N/A SCALE = NONE 1630 McCarthy Blvd. Milpitas, CA 95035 www.linear.com Phone: (408)432-1900 Fax: (408)434-0507 TITLE: SCHEMATIC SIZE USB PROTECTION 5 APPROVALS IC NO. REV. LTC4362CDCB-2 DEMO CIRCUIT 1575B 1 MODIFY DATE: Aug 19, 2014 2 SHEET 1 1 OF 1 A