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:
Jan. 28, 2014
Filed:
Oct. 13, 2011
Jose A. Camarena, Austin, TX (US);
Dale J. Mcquirk, Austin, TX (US);
Miten H. Nagda, Austin, TX (US);
Jose A. Camarena, Austin, TX (US);
Dale J. McQuirk, Austin, TX (US);
Miten H. Nagda, Austin, TX (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
An integrated circuit includes first and second transistors, a switch, and a power-on reset (POR) circuit. The first transistor has a first current electrode, a second current electrode, and a control electrode. The second transistor has a first current electrode coupled to the second current electrode of the first transistor, a second current electrode, and a control electrode. The switch is for coupling the first and second transistors to receive a power supply voltage in response to an asserted bias control signal. The POR circuit has a latch-up detection circuit coupled to receive the power supply voltage and to a control terminal of the switch. The latch-up detection circuit is for detecting a low voltage condition of the power supply voltage, and in response, deasserting the bias control signal to decouple the first and second transistors from the power supply voltage.