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LTC4440
High Speed, High Voltage
High Side Gate Driver
DESCRIPTION FEATURES Wide Operating VIN Range: Up to 80V
n Rugged Architecture Tolerant of 100V V
IN
Transients
n Powerful 1.5О© Driver Pull-Dow Powerful 2.4A Peak Current Driver Pull-Up
n 7ns Fall Time Driving 1000pF Load
n 10ns Rise Time Driving 1000pF Load
n Drives Standard Threshold MOSFETs
n TTL/CMOS Compatible Inputs with Hysteresis
n Input Thresholds are Independent of Supply
n Undervoltage Lockout
n Low Profile (1mm) SOT-23 (ThinSOT)в„ў and
Thermally Enhanced 8-Pin MSOP Packages The LTCВ®4440 is a high frequency high side N-channel
MOSFET gate driver that is designed to operate in applications with VIN voltages up to 80V. The LTC4440 can
also withstand and continue to function during 100V VIN
transients. 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 1.5О©. n The LTC4440 features supply independent TTL/CMOS
compatible input thresholds with 350mV of hysteresis.
The input logic signal is internally level-shifted to the …