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LTC4440 Datasheet(PDF) 1 Page - Linear Technology |
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LTC4440 Datasheet(HTML) 1 Page - Linear Technology |
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1 / 12 page  1 LTC4440 4440f High Speed, High Voltage High Side Gate Driver ■ Wide Operating VIN Range: Up to 80V ■ Rugged Architecture Tolerant of 100V VIN Transients ■ Powerful 1.5Ω Driver Pull-Down ■ Powerful 2.4A Peak Current Driver Pull-Up ■ 7ns Fall Time Driving 1000pF Load ■ 10ns Rise Time Driving 1000pF Load ■ Drives Standard Threshold MOSFETs ■ TTL/CMOS Compatible Inputs with Hysteresis ■ Input Thresholds are Independent of Supply ■ Undervoltage Lockout ■ Low Profile (1mm) SOT-23 (ThinSOT) TM and Thermally Enhanced 8-Pin MSOP Packages ■ Telecommunications Power Systems ■ Distributed Power Architectures ■ Server Power Supplies ■ High Density Power Modules , LTC and LT are registered trademarks of Linear Technology Corporation. The LTC ®4440 is a high frequency high side N-channel MOSFET gate driver that is designed to operate in applica- tions with VIN voltages up to 80V. The LTC4440 can also withstand and continue to function during 100V VIN tran- sients. The powerful driver capability reduces switching losses in MOSFETs with high gate capacitances. The LTC4440’s pull-up has a peak output current of 2.4A and its pull-down has an output impedance of 1.5Ω. The LTC4440 features supply independent TTL/CMOS compatible input thresholds with 350mV of hysteresis. The input logic signal is internally level-shifted to the bootstrapped supply, which may function at up to 115V above ground. The LTC4440 contains both high side and low side under- voltage lockout circuits that disable the external MOSFET when activated. The LTC4440 is available in the low profile (1mm) SOT-23 and thermally enhanced 8-lead MSOP packages. VCC INP GND BOOST TG TS LTC4440 VIN 36V TO 72V 100V PEAK TRANSIENT (ABS MAX) VCC 8V TO 15V VCC INP GND BOOST TG TS LTC4440 VCC LTC3722-1 •• 4440 TA01 Synchronous Phase-Modulated Full-Bridge Converter ThinSOT is a trademark of Linear Technology Corporation. Protected by U.S. Patents, including 6677210. INPUT (INP) 2V/DIV OUTPUT (TG – TS) 5V/DIV 10ns/DIV 4440 F02 LTC4440 Driving a 1000pF Capacitive Load FEATURES DESCRIPTIO APPLICATIO S TYPICAL APPLICATIO |
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Similar Description - LTC4440 |
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