LT3751 ABSOLUTE MAXIMUM RATINGS (Note 1) VCC, CHARGE, CLAMP ..24V Current into RVOUT Pin ..±10mA DONE, FAULT ..24V Current into RDCM Pin... ±10mA LVGATE (Note 8) ...24V Current into UVLO1 Pin .. ±1mA VCC – LVGATE ...8V Current into UVLO2 Pin.. ±1mA HVGATE ..Note 9 Current into OVLO1 Pin .. ±1mA RBG, CSP, CSN ...2V Current into OVLO2 Pin .. ±1mA FB ..5V Maximum Junction Temperature .. 125°C Current into DONE Pin ... ±1mA Operating Temperature Range (Note 2).. –40°C to 125°C Current into FAULT Pin ... ±1mA Storage Temperature Range .. –65°C to 150°C Current into RVTRANS Pin... ±1mA PIN CONFIGURATION TOP VIEW TOP VIEW RV TRANS TRANS 1 20 RDCM UVLO1 RV NC RDCM UVLO1 2 19 NC 20 19 18 17 OVLO1 3 18 RVOUT OVLO1 1 16 RVOUT UVLO2 4 17 NC UVLO2 2 15 NC OVLO2 5 16 RBG OVLO2 3 14 RBG 21 21 FAULT 6 15 HVGATE FAULT 4 13 HVGATE DONE 7 14 LVGATE DONE 5 12 LVGATE CHARGE 8 13 VCC CHARGE 6 11 VCC CLAMP 9 12 CSP 7 8 9 10 FB 10 11 CSN FB CSN CSP FE PACKAGE CLAMP 20-LEAD PLASTIC TSSOP UFD PACKAGE TJMAX = 125°C, θJA = 38°C/W 20-PIN (4mm × 5mm) PLASTIC QFN EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB TJMAX = 125°C, θJA = 43°C/W EXPOSED PAD (PIN 21) IS GND, MUST BE TIED TO PCB ORDER INFORMATION http://www.linear.com/product/LT3751#orderinfoLEAD FREE FINISHTAPE AND REELPART MARKING * PACKAGE DESCRIPTIONTEMPERATURE RANGE LT3751EFE#PBF LT3751EFE#TRPBF LT3751FE 20-Lead Plastic TSSOP –40°C to 125°C LT3751IFE#PBF LT3751IFE#TRPBF LT3751FE 20-Lead Plastic TSSOP –40°C to 125°C LT3751EUFD#PBF LT3751EUFD#TRPBF 3751 20-Pin (4mm × 5mm) Plastic QFN –40°C to 125°C LT3751IUFD#PBF LT3751IUFD#TRPBF 3751 20-Pin (4mm × 5mm) Plastic QFN –40°C to 125°C LEAD BASED FINISHTAPE AND REELPART MARKING * PACKAGE DESCRIPTIONTEMPERATURE RANGE LT3751EFE LT3751EFE#TR LT3751FE 20-Lead Plastic TSSOP –40°C to 125°C LT3751IFE LT3751IFE#TR LT3751FE 20-Lead Plastic TSSOP –40°C to 125°C LT3751EUFD LT3751EUFD#TR 3751 20-Pin (4mm × 5mm) Plastic QFN –40°C to 125°C LT3751IUFD LT3751IUFD#TR 3751 20-Pin (4mm × 5mm) Plastic QFN –40°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. 3751fd 2 For more information www.linear.com/LT3751 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts