High voltage clamps with transient activation and activation release control

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United States of America Patent

PATENT NO 10734806
APP PUB NO 20180026440A1
SERIAL NO

15215938

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Abstract

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High voltage clamps with active activation and activation-release control are provided herein. In certain configurations, a clamp can have scalable operating clamping voltage level and can be used to protect the electrical circuit connected to a power supply of a semiconductor chip from damage from an overstress event, such as electrostatic discharge (ESD) events. The pins of the power supply are actively monitored to detect when an overstress event is present, and the clamp is turned-on in response to detecting the overstress event. A timer is used to shut down the clamp after a time delay from detecting the overstress event, thereby providing a false detection shutdown mechanism that prevents the protection clamp from getting falsely activated and remain in the on-state during normal circuit operation.

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Patent Owner(s)

Patent OwnerAddress
ANALOG DEVICES INCONE TECHNOLOGY WAY NORWOOD MA 02062

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Parthasarathy, Srivatsan Acton, US 83 3448
Salcedo, Javier Alejandro North Billerica, US 43 1176
Zhao, James San Francisco, US 24 170

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