SystemsGuy
New Member
Assuming you use a low-side NMOSFET you could have the gate biased high by a resistor and your bits when active could pull it low as required.
Never used an NMOSFET before - what value should I be looking at to guarantee that my ATTiny can pull it low? If I'm reading this datasheet right, this one should be more than sufficient for 12-17vdc, 500ma?
EDITED : Hmmm, nmosfet's seem to be unpopular - limited choices! Could I accomplish the same using a PNP transistor to drive a MOSFET? Edited again - knowing what you are searching for helps - "P-Channel MOSFET" gives a few thousand more options!
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