Automation HAT and sinking outputs


#1

Hi folks
I’m using the excellent Autmation Hat for my big project. Now i’m going to use the sinking outputs to control som lights. But how many A/mah can i run to the internal ground ?? All current via the load will go to ground via the sinking outputs right ? Must be a limit there as well…

Tommy
Norway


#2

I believe the outputs can sink up to 500mA each with a total of 2.5A across the whole darlington array. The ground return path will have a theoretical limit, but I suspect the 2.5A max across the whole array is less than that.


#3

Ok thank you.
I will test this in a few days.