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TRANSIENT-TRIGGERED DC VOLTAGE-SUSTAINED POWER-RAIL ESD CLAMP CIRCUIT

  • US 20160087429A1
  • Filed: 03/10/2014
  • Published: 03/24/2016
  • Est. Priority Date: 05/09/2013
  • Status: Active Grant
First Claim
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1. A transient-triggered DC voltage-sustained power-rail ESD clamp circuit, comprising a transient-triggered module, a DC voltage-triggered module and a discharge device;

  • the transient-triggered module is connected with the discharge device, and used for judging whether a obtained pulse meets transient judgement condition of an ESD event according to rise time of the pulse, and if so, then a first response signal is sent to the discharge device, and the first response signal is used for turning on the discharge device;

    the DC voltage-triggered module is connected with the transient-triggered module, and used for judging whether the pulse meets DC voltage judgement condition of the ESD event according to amplitude of the pulse, and if so, then a second response signal is sent to the transient-triggered module, and the transient-triggered module controls the discharge device to keep in a turn-on state according to the second response signal;

    the discharge device is used for discharging static charges brought by the pulse.

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