Io-Analogschienensteuerschaltung für Leistungsrampen

Details

Veröffentlichungs-Nr.

EP3852271

Aktenzeichen

EP20216729

Anmeldetag

22. Dezember 2020

Veröffentlichung

27. März 2024

Erteilung

27. März 2024

Rechtsraum

EP

IPC

H03K19/0185

Abstract

Disclosed is a control circuit for protecting MOSFETs in I/O buffers or other devices from overvoltage damage, especially during power ramp up. The control circuit can perform additional functions. In one embodiment an integrated circuit (IC) includes input/output (I/O) buffers coupled to an output supply voltage terminal that is configured to receive an output supply voltage Vddio. Each of the I/O buffers has a bias voltage generator that is configured to generate a first bias voltage with a magnitude that depends on a control signal; an output stage that receives the first bias voltage, wherein the output stage is configured to drive an I/O pad based upon a data signal received at the I/O buffer. The IC also includes an I/O buffer controller coupled to the I/O buffers and configured to generate the control signal based upon a magnitude of the output supply voltage Vddio.

Anmelder

Firma

NXP USA, Inc.

Land

🇺🇸 USA

Fachgebiete