Esd protection circuit
OwnerJung-Eon Mooninventor
Life of this patent
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Abstract
An ESD protection circuit includes a detector coupled between a data power source line and a data ground voltage line to detect static electricity and to output a detection voltage at a detection node, a pre-driver coupled between a power source voltage line and a ground voltage line to output a driving signal at a control node, a data output driver coupled between a data input/output pad and the data ground voltage line to output data in response to the driving signal, and a controller coupled between the control node and the data ground voltage line to couple a terminal of the data output driver with the data ground voltage line based on the detection voltage when the static electricity is input.
Claims8
An electrostatic discharge (ESD) protection circuit, comprising:
- a detector coupled between a data power source line and a data ground voltage line to detect static electricity and to output a detection voltage on a detection node;
- a pre-driver coupled between a power source voltage line and a ground voltage line to output a driving signal on a control node;
- a data output driver coupled between a data input/output pad and the data ground voltage line to output data in response to the driving signal;
- and
- a controller coupled between the control node and the data ground voltage line to couple a terminal of the data output driver with the data ground voltage line based on the detection voltage when the static electricity is input.
Dependencies are inferred from the claim text.