LTC4418 ABSOLUTE MAXIMUM RATINGSPIN CONFIGURATION(Notes 1, 2) Supply Voltages TOP VIEW V1, V2 ... –42V to 60V VOUT... –0.3V to 42V HYS SHDN EN V1 V2 VS1, VS2 .. –0.3V to 60V 20 19 18 17 16 Voltage from V1, V2 to VOUT ... –84V to 60V TMR 1 15 VOUT Voltage from VS1, VS2 to G1, G2 ...–0.3V to 7.5V UV1 2 14 VS1 Input Voltages GND OV1 3 13 G1 21 EN, SHDN .. –0.3V to 60V UV2 4 12 VS2 OV1, OV2, UV1, UV2, TMR... –0.3V to 6V OV2 5 11 G2 HYS ... –0.3V to 1V 6 7 8 9 10 INTVCC .. –0.3V to 6.2V V CC Output Voltages VALID1 VALID2 GND CAS INT VALID1, VALID2 .. –0.3V to 60V UF PACKAGE CAS .. –0.3V to 6V 20-LEAD (4mm × 4mm) PLASTIC QFN T Input Currents JMAX = 150°C, θJA = 47°C/W, θJC = 4.5°C/W EXPOSED PAD (PIN 21), PCB GND CONNECTION OPTIONAL OV1, OV2, UV1, UV2, HYS, TMR, INTVCC, EN, SHDN .. –3mA Output Currents VALID1, VALID2, CAS ..–2mA/+5mA Operating Ambient Temperature Range LTC4418C .. 0°C to 70°C LTC4418I ...–40°C to 85°C Storage Temperature Range .. –65°C to 150°C ORDER INFORMATION http://www.linear.com/product/LTC4418#orderinfoLEAD FREE FINISHTAPE AND REELPART MARKING*PACKAGE DESCRIPTIONTEMPERATURE RANGE LTC4418CUF#PBF LTC4418CUF#TRPBF 4418 20-Lead (4mm × 4mm) Plastic QFN 0°C to 70°C LTC4418IUF#PBF LTC4418IUF#TRPBF 4418 20-Lead (4mm × 4mm) Plastic QFN –40°C to 85°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. 4418f 2 For more information www.linear.com/LTC4418 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts