I have two +5 volt power supplies in my product. One is used as a redundant supply so only one is active at a time. I want to report to the user via my command line the status of the power supplies.
I really only need to report if they are "up" - not necessarily their exact voltages.
Can anyone share how this is generally done?
Here are my first ideas:
Use 2 voltage supervisors to monitor each supply and run their outputs to my 52233 and just read the pins for the correct logic level.
I also thought of running the voltages from the supplies over to the processors A/D inputs (Via a voltage divider since it appears the 52233 can read up to Vrefh which cannot exceed VDDA.) and sampling them.
Or are there other ways to accomplish this?