A circuit includes a high voltage (HV) transistor having a first current electrode, a second current electrode, and a control electrode coupled to receive a control signal. The HV transistor is configured and arranged to be non-conductive when the control signal is at a first state and conductive when the control signal is at a second state. A low voltage (LV) transistor is coupled to the first current electrode of the HV transistor. An HV pad is coupled to the second current electrode of the HV transistor. An operating voltage rating of the HV pad exceeds an operating voltage rating of the LV transistor. A secondary electrostatic discharge protection device is coupled between the second current electrode of the HV transistor and a voltage supply terminal.