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:
Nov. 06, 2007
Filed:
Aug. 09, 2005
Robert P Jurgilewicz, Pepperell, MA (US);
Victor F Fleury, North Andover, MA (US);
Roger Zemke, Londonderry, NH (US);
Robert P Jurgilewicz, Pepperell, MA (US);
Victor F Fleury, North Andover, MA (US);
Roger Zemke, Londonderry, NH (US);
Linear Technology Corporation, Milpitas, CA (US);
Abstract
A low voltage pull-down circuit for maintaining a node at a logic LOW voltage is provided. When a logic LOW is desired, the circuit provides a low-impedance path from the node to ground. The node may be pulled-up to a logic HIGH voltage, for example, by removing the low-impedance path and allowing a voltage source to reach the node through a resistor or transistor. A low voltage pull-down circuit may be provided in a power supervision circuit for systems that operate with, for example, low power conditions. The open-drain node is utilized as a power-on-reset node that provides a LOW logic signal to a system when the power being supplied to the system is below a predetermined voltage threshold.