Overcurrent protection (OCP) is a key protection feature in preventing damage to motor systems. It is important for motor drivers to monitor the FETs closely and shut them down in a safe manner in the case of an overcurrent or fault condition. VDS monitors are used in gate drivers to detect overcurrent conditions and provide fault protection. This article covers how VDS monitors detect OCP conditions and explains how gate drivers with an SPI interface can use the location of an OCP condition to identify where the fault occurred in the system.