Abstract: An electrostatic discharge (ESD) protection device including an ESD protection unit and a control circuit is provided. When a voltage level of a signal received by a signal input terminal reaches an ESD protection level, the ESD protection unit transmits the signal from the signal input terminal to the system voltage terminal. The control circuit controls a conduction state between the signal input terminal and the system voltage terminal through the ESD protection unit. The control circuit generates a control voltage according to the voltage level of the signal received by the signal input terminal and a system voltage level of the system voltage terminal to control the ESD protection unit, and to prevent the ESD protection unit from transmitting the signal to the system voltage terminal when the voltage level of the signal received by the signal input terminal does not reach the ESD protection level.

Abstract: An integrated circuit (IC) and an operation method thereof are provided. The IC includes a first voltage rail, a second voltage rail, an electrostatic discharge (ESD) clamp circuit, a capacitor and a resistive element. A control terminal of the ESD clamp circuit receives a control signal during an ESD period, and the ESD clamp circuit provides an ESD current path between the first voltage rail and the second voltage rail. The capacitor is coupled between the control terminal and the second voltage rail. The resistive element is coupled between the control terminal and the first voltage rail. During a normal operation period, a resistance of the resistive element is a first resistance. During the ESD period, the resistance of the resistive element is a second resistance. The first resistance is smaller than the second resistance.

Abstract: An electrostatic discharge (ESD) protection device including an ESD protection unit and a control circuit is provided. When a voltage level of a signal received by a signal input terminal reaches an ESD protection level, the ESD protection unit transmits the signal from the signal input terminal to the system voltage terminal. The control circuit controls a conduction state between the signal input terminal and the system voltage terminal through the ESD protection unit. The control circuit generates a control voltage according to the voltage level of the signal received by the signal input terminal and a system voltage level of the system voltage terminal to control the ESD protection unit, and to prevent the ESD protection unit from transmitting the signal to the system voltage terminal when the voltage level of the signal received by the signal input terminal does not reach the ESD protection level.