LTC4441 Datasheet | Linear Technology

Features n 6A Peak Output Current n Wide VIN Supply Range: 5V to 25V n Adjustable Gate Drive Voltage: 5V to 8V n Logic Input Can Be Driven Below Ground n 30ns Propagation Delay n Supply Independent CMOS/TTL Input Thresholds n Undervoltage Lockout n Low Shutdown Current: <12µA n Overtemperature Protection n Adjustable Blanking Time for MOSFET’s Current Sense Signal (LTC4441) n Available in SO-8 and 10-Lead MSOP (Exposed Pad) Packages Applications n Power Supplies n Motor/Relay Control n Line Drivers n Charge Pumps LTC4441/LTC4441-1 N-Channel MOSFET Gate Driver Description 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 es with an open-drain output that provides adjustable leading edge blanking to prevent ringing when sensing the source current of the power MOSFETs. The LTC4441 is available in a thermally enhanced 10-lead MSOP package. The LTC4441-1 is the SO-8 version without the blanking function. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 6677210. Typical Application VIN 6V TO 24V R5 SHUTDOWN Q2 R6 LTC3803 SWITCHING CONTROLLER GATE SENSE+ R1 330k R2 86.6k FB VIN DRVCC SGND EN/SHDN R7 RBLANK PGND IN BLANK L1 10µH 20A D1...