ELECTROSTATIC DISCHARGE PROTECTION CIRCUIT, EQUIPMENT AND METHOD

  • US 20110058293A1
  • Filed: 06/04/2008
  • Published: 03/10/2011
  • Est. Priority Date: 06/04/2008
  • Status: Active Grant
First Claim
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1. An electrostatic discharge (ESD) protection circuit for protecting one or more devices in an electronic circuit from an ESD current which enters the electronic circuit through one or more input/output pins, the protection circuit comprising:

  • a voltage clamp circuit connectable to a pin, for diverting the ESD current from the or each a device;

    a current sensor circuit connected to the pin and the voltage clamp circuit and connected to the device, the current sensor circuit for sensing the ESD current and for switching off the device when the sensed current exceeds a threshold value.

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