A semiconductor device according to an exemplary embodiment of the present invention includes a discharge circuit and a control circuit. The discharge circuit includes a first transistor connected between a gate of an output transistor and an output terminal, and a capacitor connected to a gate of the first transistor, and discharges a gate voltage of the output transistor to the output terminal by turning on the first transistor with an electric charge of the capacitor. The control circuit includes a charge path, a first discharge path, and a second discharge path. The first discharge path discharges an electric charge of the charged capacitor when the system turns off. The second discharge path discharges the electric charge of the capacitor for a time period longer than a time period for discharging the output transistor by the discharge circuit upon detection of an abnormality in the system.