Patent ID: 7719286

Claim:
A method for verifying electrical contacts between a first output pin of a first power switch of a power switch device and an external node disposed externally of the power switch device and between a second output pin of a second power switch of the power switch device and the external node, comprising: (a) coupling the first power switch to a pull-down resistor and coupling the second power switch to a pull-up resistor; (b) connecting the first output pin and the second output pin to each other via the external node disposed outside of the power switch device; (c) comparing a first voltage present between the first output pin and ground with an adjustable first reference voltage for determining a first comparative value; (d) comparing a second voltage present between the second output pin and ground with an adjustable second reference voltage for determining a second comparative value; and (e) concluding, in dependence on the first comparative value and the second comparative value, whether the first output pin of the first power switch and the second output pin of the second power switch of the power switch device are contacted to the external node via the contacts.