Integrated circuit with bondwire fault detection ciruit

A circuit comprising:

• a first switch having first and second terminals and a control terminal, the first terminal of the first switch coupled to a voltage supply terminal, the second terminal of the first switch coupled to a ground terminal and to a first bondwire terminal;
• and
• a first switch controller including:
• a first resistor having a first terminal and a second terminal, the first terminal of the first resistor coupled to a second bondwire terminal;
• a second resistor having a first terminal and a second terminal, the first terminal of the second resistor coupled to the voltage supply terminal, the second terminal of the second resistor coupled to the second terminal of the first resistor;
• a first capacitor having a first terminal and a second terminal, the first terminal of the first capacitor coupled to the ground terminal and to the first bondwire terminal, the second terminal of the first capacitor coupled to the second terminals of the first and second resistors;
• a first buffer circuit having first, second, and third terminals and an output terminal, the first terminal of the first buffer circuit coupled to the voltage supply terminal, the second terminal of the first buffer circuit coupled to the second terminals of the first capacitor and the first and second resistors, the third terminal of the first buffer circuit coupled to the ground terminal and to the first bondwire terminal, the output terminal of the first buffer circuit coupled to the control terminal of the first switch;
• a second switch having first and second terminals and a control terminal, the first terminal of the second switch coupled to the voltage supply terminal, the second terminal of the second switch coupled to the ground terminal and to the first bondwire terminal;
• and
• a second switch controller including:
• a third resistor having a first terminal and a second terminal, the first terminal of the third resistor coupled to a third bondwire terminal;
• a fourth resistor having a first terminal and a second terminal, the first terminal of the fourth resistor coupled to the voltage supply terminal, the second terminal of the fourth resistor coupled to the second terminal of the first third;
• a second capacitor having a first terminal and a second terminal, the first terminal of the second capacitor coupled to the ground terminal and to the first bondwire terminal, the second terminal of the second capacitor coupled to the second terminals of the third and fourth resistors;
• and
• a second buffer circuit having first, second, and third terminals and an output terminal, the first terminal of the second buffer circuit coupled to the voltage supply terminal, the second terminal of the second buffer circuit coupled to the second terminals of the second capacitor and the third and fourth resistors, the third terminal of the second buffer circuit coupled to the ground terminal and to the first bondwire terminal, the output terminal of the second buffer circuit coupled to the control terminal of the second switch.

A circuit comprising:

• a switch having a control terminal;
• and
• a switch controller having a first terminal, a second terminal, and a switch controller output, the switch controller output coupled to the control terminal, and the switch controller configured to:
• receive a power supply voltage at the first terminal;
• receive a current having passed through an external component, the current having a current level responsive to the power supply voltage and to a condition of a bondwire coupled to the external component and to the switch controller;
• and
• provide a control signal at the switch controller output responsive to the current level.