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6 A MOSFET gate driver operates over wide temperature range

6 A MOSFET gate driver operates over wide temperature range

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By eeNews Europe



The gate drive voltage of the LTC4441 is adjustable from 5 V to 8 V, allowing designers to choose either standard threshold or logic level MOSFETs. With a wide input supply range from 5 V to 25 V, the LTC4441 provides a simplified solution for increasing the output power capability of power supplies in a broad range of applications, including motor control, telecom and industrial systems.

The LTC4441 includes an adjustable 5 V to 8 V onboard linear regulator for its gate drive voltage and IC power. The propagation delay when driving a 4.7 nF capacitance with 7.5 V drive voltage is only 30 ns. Adjustable leading edge blanking prevents ringing when sensing the source current in the power MOSFETs. The LTC4441 has a robust TTL/CMOS-compatible input that can be driven below ground or above the driver supply. Other protection features are undervoltage lockout and overtemperature circuits, which disable the driver output when activated.

The LTC4441 is packaged in a thermally enhanced 10-lead MSOP. 1000-piece pricing starts at $5.45 each. For more information, visit www.linear.com/product/LTC4441

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