I recently made my first board with eagle which was a Mega shield that had five Mosfets and a bunch of routed connections for servos and encoders. I'd like to get the board smaller, and could use some advice on potentially using this Mosfet Array.
I originally connected the motors like this Bildr tutorial. Can I do the same with the mosfet array? I don't need direction, just speed control. Looking at various h-bridges, there seems to be a lot of other components on them. Also, I would just get H-bridges to run the motors, but most of them won't be good for my power requirements. Each motor is drawing about 2-3 amps continuous.
Its an array of 5 logic level n-channel MOSFETs with common sources (ie only useful for low-side switching).
You could potentially use it, but you've given no information about the load(s) you want to switch with it,
which is of course important.
If you want to runs motors bidirectionally you need H-bridge to do it.
If a motor takes 2 to 3A continuous its stall current rating may be 10 to 20A, something to take note of...
Hi,
When you design your PCB, you need to be aware of the current you are going to have flowing through pads and tracks.
So keep your tracks wide and terminals suitably sized as well.
Also don't forget, you have bought a fully copper clad board and are about to pay someone to remove it, so the least copper removed and used in ground planes and track width will be the most efficient PCB.
