Patent ID: 10263419

Abstract:
A transient voltage protection circuit includes a first input/output pad, a second input/output pad, and a trigger circuit coupled between the first input/output pad and the second input/output pad. The trigger circuit includes a first trigger element which includes a first input/output node, a second input/output node, a third input/output node, and a first substrate diode coupled to the third input/output node of the first trigger element. The trigger circuit further includes a first resistor coupled between the first input/output node of the first trigger element and the second input/output node of the first trigger element. The trigger circuit further includes a second trigger element which includes a first input/output node, a second input/output node, a third input/output node, wherein the second input/output node of the first trigger element is coupled to the first input/output node of the second trigger element, and a second substrate diode coupled to the third input/output node of the second trigger element. The trigger circuit further includes a second resistor coupled between the first input/output node of the second trigger element and the second input/output node of the second trigger element.