Power

High speed MOSFET driver provides 100% duty cycle capability

10th July 2017
Lanna Cooper

 

A high speed, N-channel MOSFET driver that operates up to a 150V supply voltage called the LTC7001, has been announced by Analog Devices. Its internal charge pump fully enhances an external N-channel MOSFET switch, enabling it to remain on indefinitely.

The LTC7001’s powerful 1Ω gate driver can easily drive large gate capacitance MOSFETs with very short transition times and 35ns propagation delays, well suited for both high frequency switching and static switch applications.

The LTC7001 is designed to receive a ground-referenced, low voltage digital input signal and quickly drive a high side N-channel power MOSFET whose drain can be between 0 and 135V (150V abs max). The LTC7001 operates from a 3.5-5V driver bias supply range with an adjustable undervoltage lockout.The fast 13ns rise and fall times, when driving a 1,000pF load, minimise switching losses. Other features include an adjustable turn-on slew rate and an adjustable overvoltage lockout.

The LTC7001 is available in the MSOP-10 package with the leads configured for high voltage spacing. It is available in three operating junction temperature grades of extended and industrial versions from -40 to 125°C, high temperature automotive version from -40 to 150°C and a military grade from -55 to 150°C. The 1,000 piece price starts at $2.40 each.

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