I want to switch up to 3 amps on my 12 volt system using solid state. Of course with the engine running that means 13.8 volts. My trigger for this is a 5 volt logic level signal that can either sink 8.2ma or source 3.0ma. This should be way more than I need.
I need to send out power when activated. Space is an issue, so small is good. Fast is not necessary, as it will likely be on for hours at a time.
I've never used mosfets before, but I did a lot of research and I don't doubt they are what I want.
I need help learning to choose because there are so many available and the specs are for ideal conditions, not my conditions.
I have played with a mosfet and an LED and like it, but after my research I question what I thought I knew. I thought for sure this was a job for a p-chan but now I am unsure if i can use a n-chan.
Can anyone offer guidelines or rules or just explain what I am missing in the spec sheets.
Thank.
I need to send out power when activated. Space is an issue, so small is good. Fast is not necessary, as it will likely be on for hours at a time.
I've never used mosfets before, but I did a lot of research and I don't doubt they are what I want.
I need help learning to choose because there are so many available and the specs are for ideal conditions, not my conditions.
I have played with a mosfet and an LED and like it, but after my research I question what I thought I knew. I thought for sure this was a job for a p-chan but now I am unsure if i can use a n-chan.
Can anyone offer guidelines or rules or just explain what I am missing in the spec sheets.
Thank.