The LTC4444 is a high frequency high voltage gate driver that drives two N-channel MOSFETs in a synchronous DC/DC converter with supply voltages up to 100V. This powerful driver reduces switching losses in MOSFETs with high gate capacitance. The LTC4444 is configured for two supply-independent inputs. The high side input logic signal is internally level-shifted to the bootstrapped supply, which may function at up to 114V above ground. The LTC4444 contains undervoltage lockout circuits that disable the external MOSFETs when activated. Adaptive shoot-through protection prevents both MOSFETs from conducting simultaneously. For a similar driver in this product family, please refer to the chart below. Parameter LTC4444 LTC4446 LTC4444-5 Shoot-Through Protection Yes No Yes Absolute Max TS 100V 100V 100V MOSFET Gate Drive 7.2V to 13.5V 7.2V to 13.5V 4.5V to 13.5V VCC UV+ 6.6V 6.6V 4V VCC UV– 6.15V 6.15V 3.55V Applications * Distributed Power Architectures * Automotive Power Supplies * High Density Power Modules * Telecommunications * AEC-Q100 Qualified for Automotive Applications * Bootstrap Supply Voltage to 114V * Wide VCC Voltage: 7.2V to 13.5V * Adaptive Shoot-Through Protection * 2.5A Peak TG Pull-Up Current * 3A Peak BG Pull-Up Current * 1.2Ω TG Driver Pull-Down * 0.55Ω BG Driver Pull-Down https://elecena.pl/product/643213/high-voltage-synchronous-n-channel-mosfet-driver 2008-05-10 https://elecena.pl/product/643213/high-voltage-synchronous-n-channel-mosfet-driver 2014-06-11 https://elecena.pl/product/643213/high-voltage-synchronous-n-channel-mosfet-driver 2025-01-21