The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 2004
Filed:
Apr. 29, 2002
Robert N. Dotson, Chandler, AZ (US);
Semiconductor Components Industries, L.L.C., Phoenix, AZ (US);
Abstract
An integrated circuit ( ) includes a thermal shutdown circuit that incorporates hysteresis for shutting down a functional circuit ( ) when its temperature exceeds a predefined value. First and second current sources ( ) respectively produce first and second reference currents (I , I ) representative of first and second die temperatures of the integrated circuit. A current mirror ( ) has an input ( ) for summing the first and second reference currents and an output ( ) for providing a mirror current (I ). A detection circuit ( ) has an output coupled to the output of the current mirror for sinking the mirror current to produce a detection signal (V ) as a function of the first and second die temperatures.