ELECTROSTATIC DISCHARGE PROTECTION CIRCUIT AND CONFIGURATION METHOD

摘要

The present disclosure provides an electrostatic discharge (ESD) protection circuit and configuration method thereof. The ESD protection circuit includes first and second power supply terminals, first and second detection units, a control unit, a clamping unit, and a voltage-dividing output node defined between the first and second power supply terminals. The first detection unit detects an electrostatic signal, based on a signal between the first power supply terminal and the voltage-dividing output node, and outputs a first signal. Likewise, the second detection unit outputs a second signal. The control unit is configured to be driven by the first signal to convert into a first discharge control signal and by the second signal to convert into a second discharge control signal. The clamping unit is configured to receive the first and second discharge control signals to discharge an electrostatic current between the first and the second power supply terminals.

主权项

1. An electrostatic discharge (ESD) protection circuit, comprising:
a first power supply terminal, a second power supply terminal, a first detection unit, a second detection unit, a control unit, a clamping unit, and a voltage-dividing output node defined between the first and the second power supply terminals, wherein: the first detection unit is configured to detect an electrostatic signal, based on a signal between the first power supply terminal and the voltage-dividing output node, and to output a first signal when the electrostatic signal is sensed; the second detection unit is configured to detect an electrostatic signal, based on a signal between the second power supply terminal and the voltage-dividing output node, and to output a second signal when the electrostatic signal is sensed; the control unit is configured to be driven by the first signal to convert the first signal into a first discharge control signal and by the second signal to convert the second signal into a second discharge control signal; and the clamping unit is configured to receive the first discharge control signal and the second discharge control signal to discharge an electrostatic current between the first and the second power supply terminals.