I'm a begginer in electronics so I have some very basic questions. I would like to protect an OpAmp power supply rails from overcurrent. But I don't know at what value I should set this protection. The OpAmp is the OPA445. I found this in the datasheet :
Should I make the protection for 4.2 mA because I'm working in a room where the temperature is regulated at 20°C?
edit: The reason why i need to know the current of the load is that I want to make a protection for the Opamp. I have four of them supplied by two dc/dc controllers in parallel. One for the positive rail and one for the negative rail. (LTC3863 and LTC3864). In order to size the components I need to determine how much current is drawn by the four opamps.