POWER-OFF CONTROLLING CIRCUIT, AND POWER-OFF CONTROLLING METHOD

摘要

<P>PROBLEM TO BE SOLVED: To provide a power-off controlling circuit and a power-off controlling method, for controlling power-off of an integrated circuit based on the strength of leak current. Ž<P>SOLUTION: The power-off controlling circuit includes: a model circuit section including a model circuit made by modelling a basic circuit of an integrated circuit; a voltage comparing circuit section for comparing output voltage charged by a leak current occurring at the model circuit with a preset reference voltage; a determination circuit section for measuring a time of arrival spent by the output voltage arriving at the reference voltage from the compared result and determining the strength of the leak current from the measured result; and a power-off controlling circuit section for controlling power-off of the integrated circuit on the basis of the determined strength of the leak current. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž