ESD protection circuit for differential I/O pair

Details ESD protection circuit for differential I/O pair ESD protection circuit for differential I/O pair

2011-07-05

2011-07-05

Fureman, Jared J (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

C361S091100, C361S111000

Reexamination Certificate

active

07974053

ABSTRACT:
An ESD protection circuit for a differential I/O pair is provided. The circuit includes an ESD detection circuit, a discharge device, and four diodes. The first diode is coupled between the first I/O pin and the discharge device in a forward direction toward the discharge device. The second diode is coupled between the second I/O pin and the discharge device in a forward direction toward the second I/O pin. The third diode is coupled between the discharge device and the positive power line in a forward direction toward the positive power line. The fourth diode is coupled between the discharge device and the negative power line in a forward direction toward the discharge device. Via an output end, the ESD detection circuit triggers the discharge device during ESD events.

REFERENCES:
patent: 5862031 (1999-01-01), Wicker et al.
patent: 6385116 (2002-05-01), Wang
patent: 6507471 (2003-01-01), Colclaser et al.
patent: 6690557 (2004-02-01), Hung et al.
patent: 6693780 (2004-02-01), Spehar et al.
patent: 6731488 (2004-05-01), Voldman
patent: 6882224 (2005-04-01), Gaboury et al.
patent: 7579881 (2009-08-01), Bach
patent: 7880195 (2011-02-01), Ker et al.
patent: 2003/0076636 (2003-04-01), Ker et al.
patent: 2006/0132996 (2006-06-01), Poulton
Ker, M.-D et al., “ESD protection design on analog pin with very low input capacitance for high-frequency or current-mode applications,” Aug. 2000, pp. 1194-1199, vol. 35, No. 8, IEEE J. Solid-State Circuits.

Affiliated with

Also associated with

Rating

ESD protection circuit for differential I/O pair does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with ESD protection circuit for differential I/O pair, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ESD protection circuit for differential I/O pair will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2622736