Reverse voltage protected integrated circuit arrangement for multiple supply lines

An integrated circuit arrangement with a reverse voltage protection, the circuit arrangement comprising:

• a semiconductor body having a substrate and at least one substrate terminal;
• at least one semiconductor component integrated in the semiconductor body and being connected between a first supply terminal providing a first supply potential and a second supply terminal providing a second supply potential, the first supply potential being higher than the second supply potential during normal operation of the semiconductor component, and the first supply potential being lower than the second supply potential during reverse voltage operation of the semiconductor component;
• and
• a switching circuit for coupling the at least one substrate terminal to the first supply terminal during reverse voltage operation and to the second supply terminal during normal operation.

An integrated circuit arrangement with a reverse voltage protection, the integrated circuit arrangement comprising:

• a semiconductor body having a substrate and at least one substrate terminal;
• at least a first semiconductor component integrated in the semiconductor body and being connected between a first supply terminal providing a first supply potential and a third supply terminal providing a third supply potential;
• at least a second semiconductor component integrated in the semiconductor body and being connected between a second supply terminal providing a second supply potential and the third supply terminal, where the first supply potential and the second supply potential are higher than the third supply potential during normal operation of the integrated circuit arrangement, and at least one of the first supply potential and/or the second supply potential is lower than the third supply potential during reverse voltage operation of the integrated circuit arrangement;
• and
• a switch configured to connect the at least one substrate terminal to the third supply terminal during normal operation and to connect the at least one substrate terminal either to the first supply terminal or the second supply terminal, whichever has a lower potential.