Electrostatic discharge (ESD) protection circuit and integrated circuit including the same

An electrostatic discharge protection circuit (an ESD protection circuit) comprising:

• a transient-state detection circuit connected between a first power rail configured to receive a power supply voltage and a second power rail configured to receive a ground voltage, the transient-state detection circuit being configured to activate a dynamic triggering signal when a voltage change rate of a voltage on the first power rail is higher than a reference rate;
• a voltage detection circuit connected between the first power rail and the second power rail, the voltage detection circuit being configured to activate a static triggering signal at a static detection node when the voltage on the first power rail is higher than a reference voltage, wherein the voltage detection circuit comprises a diode circuit connected between the first power rail and the static detection node, and a static detection resistor connected between the static detection node and the second power rail, and wherein the diode circuit and the static detection resistor are connected to the transient-state detection circuit in parallel;
• a trigger circuit connected between the first power rail and the second power rail, the trigger circuit being configured to activate a discharge control signal when both of the dynamic triggering signal and the static triggering signal are activated;
• and
• a main discharge circuit connected between the first power rail and the second power rail, the main discharge circuit being configured to discharge an electric charge from the first power rail to the second power rail in response to the discharge control signal being activated.

An integrated circuit comprising:

• an internal circuit connected between a first power rail configured to provide a power supply voltage and a second power rail configured to provide a ground voltage;
• and
• an electrostatic discharge protection circuit (an ESD protection circuit) connected between the first power rail and the second power rail, the ESD protection circuit being configured to discharge an electric charge from the first power rail to the second power rail based on a dynamic triggering signal and a static triggering signal,
• wherein the ESD protection circuit comprises:
• a transient-state detection circuit configured to generate the dynamic triggering signal based on a voltage change rate of a voltage on the first power rail;
• and
• a voltage detection circuit configured to generate the static triggering signal based on the voltage on the first power rail, wherein the voltage detection circuit comprises a diode circuit connected in series with a static detection resistor between the first power rail and the second power rail, and
• wherein the diode circuit and the static detection resistor are connected to the transient-state detection circuit in parallel.