@Nordle I used connector only for the holes, I will not be populating it to not increase the height of whole thing.
@Martinsp I am not connecting FET directly to MCU as I am using high side switching for that I am using gate driver. Regarding high capacitance load you need to control output voltage rise time in order prevent killing FET
We received the PCB but there was a mistake made by me… Ground planes were disabled then I was generating gerbers… But for testing, it will be more than enough to see the performance of it.
After first turn on, with some light load of 10A it was working fine, next step is bit higher constant 80A don’t have yet higher current source available to test higher constant currents
Some updated information regarding the switch, we have done some testing and decided that even at low currents like 50A constant heat-sink is required so we are making a aluminum case there MOSFET will sit inside and PCB will cover it.
The price will be 70 eur + VAT + Shipping.
It will be available in 1-2 Weeks ordered new PCB today.
What mosfet are you using exactly?
I would try to find the one within desired Voltage&Amp ratings and lowest possible drain to sourece resistance [Rds on], that should keep temps as low as possible.