Looking for cheap mosfet driver for half bridge

Dec 16, 2005 7 Replies

I'm looking for a cheap mosfet gate driver for half bridge configuration.


-mosfets to be used for dc motor control



-half bridge topology



Mike



IRF does just about every chip, look for the IR21XX type series on IRF website.

Chris

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Good advice, Chris, and for Mike, read IR's application notes.

Thanks, - Win

Depending on your current requirements, the TC/MAX4427 (~$2) or the Infineon TLE5205 are the two I've used (~$4.50). 4427 for motorfaders (~500mA) and the 5205 for small industrial motor control (1-2A).

For general MOSFET driving, the TC4427 is great. However for a 'half bridge' configuration, in the same sort of power range, the IR2181, is my favourite. This generates the voltage to drive one 'high side', and one 'low side' N channel MOSFET, suiting this configuration excellently.

Best Wishes

ST 'L6384'. Very cheap (equiv' $1), 8 pin DIL. Logic input. Fets can be powered anywhere from 16V to 600V. Magic!

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