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Circuit arrangement comprising an electronic component and an ESD protection arrangement

  • US 7,978,451 B2
  • Filed: 09/12/2008
  • Issued: 07/12/2011
  • Est. Priority Date: 09/14/2007
  • Status: Active Grant
First Claim
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1. A circuit arrangement comprising:

  • an electronic component having first and second terminals; and

    an ESD protection arrangement against disturbance pulses, which is coupled via connection terminals in parallel with the electronic component between the first and second terminals, the ESD protection arrangement comprising;

    a first ESD protection unit; and

    a second ESD protection unit, coupled in parallel with the first ESD protection unit, wherein the second ESD protection unit reacts more rapidly than the first ESD protection unit to a voltage rise at the connection terminals with a formation of a conductive current path between the connection terminals, whereinthe second ESD protection unit comprises a MOS transistor having load path terminals coupled between the first and second terminals and having a control terminal, the control terminal of the MOS transistor being short-circuited with one of the load path terminals or being coupled to one of the load path terminals via a resistor, andthe MOS transistor of the second ESD protection unit comprises a cellularly constructed MOS transistor having a first number of transistor cells.

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