In the safety critical designs, the short-circuit protection (SCP) feature and the diagnosis are important.

The TPS1210x-Q1 features the diagnosis of the internal short-circuit protection. When SCP_TEST is driven low to high, then a voltage is applied internally across the SCP comparator inputs to simulate a short-circuit event. The comparator output controls the gate drive (G1PU/G1PD) and also the FLT. If the gate drive goes low (with initially being high) and FLT also goes low, then this action indicates that the SCP is good otherwise is to be treated as the SCP feature is not functional.

If the SCP_TEST feature is not used, then connect SCP_TEST pin to GND.