Esd- und Überspannungsklemme

Details

Veröffentlichungs-Nr.

EP4794481

Anmeldetag

4. Februar 2026

Veröffentlichung

19. August 2026

Rechtsraum

EP

IPC

H10D89/60

Abstract

An ESD circuit includes a clamp that can be used for both discharging ESD current and for over voltage protection. The integrated circuit includes a signal IC terminal that is coupled to the clamp through a resistor circuit. In response to an over voltage condition of the signal IC terminal, the clamp becomes conductive to make conducive a discharge path between the signal IC terminal and a supply voltage rail to conduct charge to reduce the over voltage condition. The discharge path is through the resistor and through the clamp. A transistor is coupled to the control terminal of the clamp and has a control input coupled to receive an ESD trigger signal. In response to a detected ESD event, the trigger circuit is asserted to make the transistor conductive to pull the voltage of the control terminal of the clamp towards a voltage of the supply voltage rail to make conductive the discharge path to discharge ESD current between the IC terminal and the supply voltage rail.

Anmelder

Firma

NXP B.V.

Land

🇳🇱 Niederlande

Fachgebiete