Differential current output driver with overvoltage protection

Details Differential current output driver with overvoltage protection Differential current output driver with overvoltage protection

2011-06-07

2011-06-07

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

C361S111000, C361S091100

Reexamination Certificate

active

07957111

ABSTRACT:
A differential current output driver and a method for overvoltage protection of a differential current output driver circuit are provided. The output driver includes a differential current output driver circuit operable by a power supply voltage and including first and second driver transistors in a differential current configuration and first and second output pads, and an overvoltage protection circuit configured to generate a protected voltage in response to a voltage on at least one of the first and second output pads and an absence of the power supply voltage, and to apply the protected voltage to at least one transistor of the differential current output driver circuit.

REFERENCES:
patent: 4453092 (1984-06-01), Joseph
patent: 5019720 (1991-05-01), Skoog et al.
patent: 6225867 (2001-05-01), Ilowski et al.
patent: 6618230 (2003-09-01), Liu et al.
patent: 6784624 (2004-08-01), Buonocunto
patent: 6919696 (2005-07-01), Van Casteren
patent: 7245155 (2007-07-01), Watarai
patent: 0 454 091 (1991-10-01), None
Chow, Hwang-Cherng et al.,A Reliable and High Voltage Compatible CMOS I/O Buffer, The 47thIEEE International Midwest Symposium on Circuits and Systems, 2004, pp. III-451-III-454.
Mandal, Debashis et al. ,High Voltage Tolerant Output Buffer Design for Mixed Voltage Interfaces, Alliance Semiconductor (I) Pvt. Ltd (ALSC), 2005 IEEE, pp. 4277-4280.
Annema, Anne-Johan et al.,5.5-V I/O in a 2.5-V 0.25-μm CMOS Technology, IEEE Journal of Solid State Circuits, vol. 36, No. 3, Mar. 2001, pp. 528-538.
Search Report and Written Opinion dated May 28, 2009 from corresponding International Application No. PCT/US2009/000881.

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