LTC4440A-5 High Speed, High Voltage, High Side Gate Driver Fea T Descrip T n Wide Operating V Range: Up to 80V The LTC 4440A-5 is a high frequency high side N-channel IN n Rugged Architecture Tolerant of 100V V Transients MOSFET gate driver that is designed to operate in applica- IN n Powerful 1.85 Driver Pull-Down (with 6V Supply) tions with V voltages up to 80V. The LTC4440A-5 can IN n Powerful 1.1A Peak Current Driver Pull-Up also withstand and continue to function during 100V V IN transients. The powerful driver capability reduces switch- (with 6V Supply) n ing losses in MOSFETs with high gate capacitances. The 7ns Fall Time Driving 1000pF Load n LTC4440A-5s pull-up has a peak output current of 1.1A 10ns Rise Time Driving 1000pF Load n and its pull-down has an output impedance of 1.85. Drives Standard Threshold MOSFETs n TTL/CMOS Compatible Inputs with Hysteresis The LTC4440A-5 features supply independent TTL/CMOS n Input Thresholds are Independent of Supply compatible input thresholds with 350mV of hysteresis. n Undervoltage Lockout The input logic signal is internally level-shifted to the n Thermally Enhanced 8-Lead MSOP Package bootstrapped supply, which may function at up to 95V above ground. a T The LTC4440A-5 is optimized for driving (5V) logic level n Automotive Power Systems FETs and contains an undervoltage lockout circuit that n Telecommunications Power Systems disables the external MOSFET when activated. n Distributed Power Architectures The LTC4440A-5 is available in the thermally enhanced n Server Power Supplies 8-lead MSOP package. n High Density Power Modules n General Purpose Low or High Side Driver PARAMETER LTC4440A-5 LTC4440-5 LTC4440 Max Operating TS 80V 60V 80V L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Direct Flux Limit is a trademark of Linear Technology Corporation. All other trademarks are the Absolute Max TS 100V 80V 100V property of their respective owners. Protected by U.S. Patents, including 6677210. MOSFET Gate Drive 4V to 15V 4V to 15V 8V to 15V + V UV 3.2V 3.2V 6.3V CC V UV 3.04V 3.04V 6.0V CC Typical a T Synchronous Phase-Modulated Full-Bridge Converter LTC4440A-5 Driving a 1000pF Capacitive Load V IN 36V TO 80V V CC 4V TO 15V LTC4440A-5 V BOOST CC TG-TS INP TG 2V/DIV GND TS LTC4440A-5 V BOOST CC LTC3722-1 INP INP TG 2V/DIV GND TS 4440A5 TA01 4440A5 TA02 50ns/DIV V = BOOST-TS = 5V CC 4440a5f 1 For more information www.linear.com/LTC4440A-5 ion pplica ions pplica ion uresLTC4440A-5 a Te Maxi Mu M r a T p in c F T (Note 1) Supply Voltage TOP VIEW INP 1 8 TS V ........................................................ 0.3V to 15V CC GND 2 9 7 TG BOOST TS ........................................... 0.3V to 15V GND 6 BOOST V 3 CC GND 4 5 NC INP Voltage ................................................ 0.3V to 15V MS8E PACKAGE BOOST Voltage (Continuous) ..................... 0.3V to 95V 8-LEAD PLASTIC MSOP BOOST Voltage (100ms) ...........................0.3V to 115V T = 150C, = 40C/W (NOTE 4) JMAX JA EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB TS Voltage (Continuous) ............................... 5V to 80V TS Voltage (100ms) .................................... 5V to 100V Operating Junction Temperature Range (Notes 2, 3) LTC4440AI-5 ..................................... 40C to 125C LTC4440AH-5 .................................... 40C to 150C LTC4440AMP-5 ................................. 55C to 150C Storage Temperature Range .................. 65C to 150C Lead Temperature (Soldering, 10 sec) ...................300C o r Der i n F Ma T LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC4440AIMS8E-5 PBF LTC4440AIMS8E-5 TRPBF LTGKP 8-Lead Plastic MSOP 40C to 125C LTC4440AHMS8E-5 PBF LTC4440AHMS8E-5 TRPBF LTGKP 8-Lead Plastic MSOP 40C to 150C LTC4440AMPMS8E-5 PBF LTC4440AMPMS8E-5 TRPBF LTGKP 8-Lead Plastic MSOP 55C to 150C 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: