Datasheet LT3745 (Analog Devices) - 2

LT3745
absoluTe MaxiMuM raTings pin conFiguraTion (Note 1)
VIN .. 57V TOP VIEW CAP ... VIN – 8V to VIN GATE ..CAP to V TE IN I SET T SET V IN GA CAP ISP ISN FB SS RT LED00 to LED15, ISP, ISN ...40V 40 39 38 37 36 35 34 33 32 31 ISP ...ISN – 1V to ISN + 1V EN/UVLO 1 30 SYNC FB, RT, T LED07 2 29 LED08 SET, ISET ... 2V V LED06 3 28 LED09 CC ...–0.3V to 6V SCKI, SCKO, SDI, SDO, LDI, LDO, PWMCK, SYNC, LED05 4 27 LED10 LED04 5 41 26 LED11 SS, EN/UVLO ... –0.3V to VCC GND LED03 6 25 LED12 Operating Junction Temperature Range LED02 7 24 LED13 (Notes 2, 3) LED01 8 23 LED14 LT3745E ..–40°C to 125°C LED00 9 22 LED15 LT3745I ...–40°C to 125°C GND 10 21 GND Storage Temperature Range ..–65°C to 125°C 11 12 13 14 15 16 17 18 19 20 SCKI GND SDI LDI V CC LDO SDO GND SCKO PWMCK UJ PACKAGE 40-LEAD (6mm × 6mm) PLASTIC QFN TJMAX = 125°C, θJA = 34°C/W, θJC = 2.5°C/W EXPOSED PAD (PIN 41) IS GND, MUST BE SOLDERED TO PCB
orDer inForMaTion LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3745EUJ#PBF LT3745EUJ#TRPBF 3745 40-Lead (6mm × 6mm) Plastic QFN –40°C to 125°C LT3745IUJ#PBF LT3745IUJ#TRPBF 3745 40-Lead (6mm × 6mm) 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. Consult LTC Marketing for information on nonstandard lead based finish parts. 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/ 3745f 2 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Package Description Typical Application Related Parts