I have been trying to control a 12V RGB LED strip using a Controllino MAXI and its’ PWM outputs. My problem here is, that the LED strip has a common anode which forces me to use the digital Outputs as current sinks instead of current supplies. On the pin header this works just fine when I use a small single RGB LED that is rated for 5V. When I plug the common anode of the strip into the screw terminal digital Output and connect one of the color channels to ground it works as well. But when I try to use the digital output as a current sink as stated above (common Anode connects to +12V and the color channels connect to the digital outputs) nothing happens at all. I have used a multimeter to see if there is any kind of current flowing but there’s nothing.
Can the HighSide Switches only be used as a current supply?
Would it be possible to have a look at the datasheet of the HighSide Switch?