Smart electronic switch

A circuit comprising:

• an electronic switch having a load current path coupled between an output node and a supply node and configured to connect or disconnect the output node and the supply node in accordance with a drive signal;
• a monitoring circuit configured to receive a current sense signal representing the load current passing through the load current path and to determine a protection signal based on the current sense signal, a state of the monitoring circuit, and at least one wire parameter that characterizes a wire operably connected to the output node, the protection signal being indicative of whether to disconnect the output node from the supply node;
• and
• a protection circuit connected to the monitoring circuit and configured to store the state of the monitoring circuit in one or more registers included in the protection circuit,
• wherein the protection circuit is configured to receive a logic supply potential at an input node, and includes a supply circuit configured to provide a temporary supply for the protection circuit when a supply potential received at an input node deviates from an internal supply potential buffered by the supply circuit by more than a given threshold value.