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:
Dec. 25, 2018
Filed:
May. 27, 2016
Freescale Semiconductor, Inc., Austin, TX (US);
Michael A. Stockinger, Austin, TX (US);
Gregory C. Edgington, Lakeway, TX (US);
James R. Feddeler, Austin, TX (US);
Xiang Li, Austin, TX (US);
Richard W. Moseley, Austin, TX (US);
Mihir Suchak, Morrisville, NC (US);
NXP USA, Inc., Austin, TX (US);
Abstract
An integrated circuit includes an I/O pad and a protection device coupled to the I/O pad and a first supply node. A transient event detector includes a latch; a first transistor having a first current electrode coupled to the I/O pad, a control electrode coupled to a first supply node, and a second current electrode coupled to a data input of the latch, wherein the latch is configured to store an indication that a transient event occurred. An event level sensor includes a first transistor having a first current electrode coupled to the I/O pad, a control electrode coupled to the protection device, and a second current electrode coupled to a load circuit; a rectifier device coupled between the second current electrode and a capacitor; a second transistor having a control electrode coupled to the capacitor; and an output circuit configured to place a current on a first sense bus proportional to a current through the load circuit.