Patent ID: 8254075
Filing Date: 2012-08-28
Classification: H03K

Abstract:
1. A semiconductor device comprising: a current supply section configured to control a current flowing through a load circuit; an overcurrent detecting section configured to detect based on the current, that an overcurrent flows through said load circuit, to output an overcurrent signal; an overheat detecting circuit configured to detect that a peripheral temperature exceeds a detection target temperature, in response to said overcurrent signal, and output an overheat detection signal; wherein said overheat detecting circuit has a hysteresis to said detection target temperature, and said detection target temperature contains an overheat detection temperature used to detect an overheat state and a recovery temperature used to detect cancellation from said overheat state; and a drive control circuit configured to output the current control signal which indicates the quantity of the current flowing through said load circuit based on said overcurrent signal and said overheat detection signal in said electric current supply section.