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ELECTROSTATIC DISCHARGE PROTECTION DEVICE

  • US 20130155554A1
  • Filed: 12/16/2011
  • Published: 06/20/2013
  • Est. Priority Date: 12/16/2011
  • Status: Active Grant
First Claim
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1. An electrostatic discharge protection device, comprising:

  • a clamp unit, providing a discharging path from a first power line to a first ground line; and

    a control circuit, receiving a first power voltage from the first power line and a second power voltage from a second power line,wherein when the first power voltage and the second power voltage are applied, the control circuit generates an isolation signal to disconnect the discharging path, and when the first power voltage and the second power voltage are not applied, the control circuit generates a trigger signal according to an electrostatic signal from the first power line to turn on the discharging path.

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