Mosfet voltage drop

Thread Starter


Joined Sep 8, 2021
Hi, I tried to simulate mosfet switch for 2x10W LEDs, but there is a huge voltage drop on the mosfets. Why 5V logic signal can't open mosfet?
LEDs specs: 10V 1A


Joined Mar 14, 2008
Where can I find real mosfet crystal size? I use ao3400 in my project, but this information is not presented in datasheet
That's never given in the data sheet.
For discrete MOSFETs you look at the voltage rating, the on-resistance, and the voltage at which the on-resistance is measured, when they are used as a switches.