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LTC4447

Part Number LTC4447
Manufacturer Linear Technology
Title High Speed Synchronous N-Channel MOSFET Driver
Description The LTC®4447 is a high frequency gate driver with integrated bootstrap Schottky diode that is designed to drive two N-Channel MOSFETs in a synchro...
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■ DESCRIPTION The LTC®4447 is a high frequency gate driver with integrated bootstrap Schottky diode that is designed to drive two N-Channel MOSFETs in a synchronous DC/DC converter. The powerful rail-to-rail driver capability reduces switching losses in MOSFETs with high gat...

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LTC4440 : The LTC®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 1.5Ω. 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 an.

LTC4440-5 : The LTC®4440-5 is a high frequency high side N-channel MOSFET gate driver that is designed to operate in applications with VIN voltages up to 60V. The LTC4440-5 can also withstand and continue to function during 80V VIN transients. The powerful driver capability reduces switching losses in MOSFETs with high gate capacitances. The LTC4440-5’s pull-up has a peak output current of 1.1A and its pull-down has an output impedance of 1.85Ω. The LTC4440-5 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 95V above ground. The LTC4440-5 is optimized for d.

LTC4440A-5 : The LTC®4440A-5 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 LTC4440A-5 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 LTC4440A-5’s pull-up has a peak output current of 1.1A and its pull-down has an output impedance of 1.85Ω. The LTC4440A-5 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 95V above ground. The LTC4440A-5 is optimize.

LTC4441 : The LTC®4441/LTC4441-1 is an N-channel MOSFET gate driver that can supply up to 6A of peak output current. The chip is designed to operate with a supply voltage of up to 25V and has an adjustable linear regulator for the gate drive. The gate drive voltage can be programmed between 5V and 8V. The LTC4441/LTC4441-1 features a logic threshold driver input. This input can be driven below ground or above the driver supply. A dual function control input is provided to disable the driver or to force the chip into shutdown mode with 12µA of supply current. Undervoltage lockout and overtemperature protection circuits will disable the driver output when activated. The LTC4441 also comes with an open-.

LTC4441-1 : The LTC®4441/LTC4441-1 is an N-channel MOSFET gate driver that can supply up to 6A of peak output current. The chip is designed to operate with a supply voltage of up to 25V and has an adjustable linear regulator for the gate drive. The gate drive voltage can be programmed between 5V and 8V. The LTC4441/LTC4441-1 features a logic threshold driver input. This input can be driven below ground or above the driver supply. A dual function control input is provided to disable the driver or to force the chip into shutdown mode with 12µA of supply current. Undervoltage lockout and overtemperature protection circuits will disable the driver output when activated. The LTC4441 also comes with an open-.

LTC4442 : The LTC®4442 is a high frequency gate driver designed to drive two N-channel MOSFETs in a synchronous buck DC/DC converter topology. The powerful driver capability reduces switching losses in MOSFETs with high gate capacitance. The LTC4442 features a separate supply for the input logic to match the signal swing of the controller IC. If the input signal is not being driven, the LTC4442 activates a shutdown mode that turns off both external MOSFETs. The input logic signal is internally level-shifted to the bootstrapped supply, which may function at up to 42V above ground. The LTC4442 contains undervoltage lockout circuits on both the driver and logic supplies that turn off the external MOSFETs.

LTC4442-1 : The LTC®4442 is a high frequency gate driver designed to drive two N-channel MOSFETs in a synchronous buck DC/DC converter topology. The powerful driver capability reduces switching losses in MOSFETs with high gate capacitance. The LTC4442 features a separate supply for the input logic to match the signal swing of the controller IC. If the input signal is not being driven, the LTC4442 activates a shutdown mode that turns off both external MOSFETs. The input logic signal is internally level-shifted to the bootstrapped supply, which may function at up to 42V above ground. The LTC4442 contains undervoltage lockout circuits on both the driver and logic supplies that turn off the external MOSFETs.

LTC4443 : The LTC®4443 is a high frequency gate driver with integrated bootstrap Schottky diode designed to drive two N-channel MOSFETs in a synchronous buck DC/DC converter topology. The powerful driver capability reduces switching losses in MOSFETs with high gate capacitance. The LTC4443 features a separate supply for the input logic to match the signal swing of the controller IC. If the input signal is not being driven, the LTC4443 activates a shutdown mode that turns off both external MOSFETs. The input logic signal is internally level-shifted to the bootstrapped supply, which may function at up to 42V above ground. The Schottky diode required for the bootstrapped supply is integrated to simplify .

LTC4443-1 : The LTC®4443 is a high frequency gate driver with integrated bootstrap Schottky diode designed to drive two N-channel MOSFETs in a synchronous buck DC/DC converter topology. The powerful driver capability reduces switching losses in MOSFETs with high gate capacitance. The LTC4443 features a separate supply for the input logic to match the signal swing of the controller IC. If the input signal is not being driven, the LTC4443 activates a shutdown mode that turns off both external MOSFETs. The input logic signal is internally level-shifted to the bootstrapped supply, which may function at up to 42V above ground. The Schottky diode required for the bootstrapped supply is integrated to simplify .

LTC4444 : The LTC®4444 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.

LTC4444-5 : The LTC®4444-5 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 LTC4444-5 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 LTC4444-5 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.

LTC4446 : www.DataSheet4U.com Bootstrap Supply Voltage Up to 114V Wide VCC Voltage: 7.2V to 13.5V 2.5A Peak Top Gate Pull-Up Current 3A Peak Bottom Gate Pull-Up Current 1.2Ω Top Gate Driver Pull-Down 0.55Ω Bottom Gate Driver Pull-Down 5ns Top Gate Fall Time Driving 1nF Load 8ns Top Gate Rise Time Driving 1nF Load 3ns Bottom Gate Fall Time Driving 1nF Load 6ns Bottom Gate Rise Time Driving 1nF Load Drives Both High and Low Side N-Channel MOSFETs Undervoltage Lockout Thermally Enhanced 8-Pin MSOP Package The LTC®4446 is a high frequency high voltage gate driver that drives two N-channel MOSFETs in a DC/DC converter with supply voltages up to 100V. The powerful driver capability reduces switching losse.

LTC4449 : The LTC®4449 is a high frequency gate driver that is designed to drive two N-Channel MOSFETs in a synchronous DC/DC converter. The powerful rail-to-rail driver capability reduces switching losses in MOSFETs with high gate capacitance. The LTC4449 features a separate supply for the input logic to match the signal swing of the controller IC. If the input signal is not being driven, the LTC4449 activates a shutdown mode that turns off both external MOSFETs. The input logic signal is internally level-shifted to the bootstrapped supply, which functions at up to 42V above ground. The LTC4449 contains undervoltage lockout circuits on both the driver and logic supplies that turn off the external MOS.




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