Hi all...
I'm using
https://www.electro-tech-online.com/custompdfs/2006/02/FDV304P.pdf
and i need logic 0 to turn on the mostfet (which it does)
and 3.3 volts to turn it off (which it doesnt)
im trying to switch 5v
its source is connected to 5v, its gate is pulled to 5v though 47k, and then connected to logic via 1k
so.. i need the drain to be at 5v when gate is 0 (<1) and 0v when gate is 3.3 (>2.7)
im a bit confused...
i could use a pnp trans too, prob need a zener on the base, but i dont understand how that works, i have seen it, and wouldnt know what voltage to use
thanks!
mitch
I'm using
https://www.electro-tech-online.com/custompdfs/2006/02/FDV304P.pdf
and i need logic 0 to turn on the mostfet (which it does)
and 3.3 volts to turn it off (which it doesnt)
im trying to switch 5v
its source is connected to 5v, its gate is pulled to 5v though 47k, and then connected to logic via 1k
so.. i need the drain to be at 5v when gate is 0 (<1) and 0v when gate is 3.3 (>2.7)
im a bit confused...
i could use a pnp trans too, prob need a zener on the base, but i dont understand how that works, i have seen it, and wouldnt know what voltage to use
thanks!
mitch