Apparatus and method for protecting a circuit during a hot socke

Details Apparatus and method for protecting a circuit during a hot socke Apparatus and method for protecting a circuit during a hot socke

1999-05-24

2000-03-21

Tokar, Michael

Electronic digital logic circuitry

Interface

Current driving

326 56, 326 83, H03K 190175

Patent

active

060407123

ABSTRACT:
A circuit includes an output node, a set of output transistors operative to control the signal level on the output node, a first voltage supply, and a second voltage supply. A hot socket detection circuit identifies when the first voltage supply or the second voltage supply is below a predetermined value indicative of a hot socket condition. In response to a hot socket condition, the hot socket detection circuit generates control signals that place the set of output transistors in a high impedance state.

REFERENCES:
patent: 5646551 (1997-07-01), Ting
patent: 5825206 (1998-10-01), Krishnamurthy et al.
patent: 5862390 (1999-01-01), Ranjan

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