The ACS710 also has an integrated active-low, latched, fault output. The fault output is designed to respond in as little as 2 microseconds, and is capable of protecting FET and IGBT devices during short circuit conditions. The simple full-bridge driver circuit in figure (A) above shows how the device can be used to measure the current in a single-phase brush or brushless DC motor system. The fast fault output responds quickly enough to allow the controller to shut down the IGBT or FET devices by disabling the pre-driver IC, shown as the Allegro A3941 in figure (A). The fault is active low and its response time can be slowed down to prevent nuisance tripping if the 2 microsecond response time is deemed too fast for the application. When a fault occurs, the FAULT pin is latched and can be cleared with the FAULT ENABLE pin. The application drawing in figure (B) above illustrates a configuration for a simple single-phase motor control current sensing application. The over current fault level is set with a voltage on the VOC pin and can be created by a simple resistor divider circuit. Slowing down the FAULT pin to prevent nuisance tripping is accomplished with a capacitor, COC in figure (B), directly on the FAULT pin to ground.