OVERCURRENT PROTECTION DEVICE AND METHOD OF OPERATING A POWER SWITCH

摘要

An overcurrent protection device comprises a maximum-allowed-current unit and a power switch having a conductive state and a nonconductive state. The maximum-allowed-current unit determines a time-dependent maximum allowed current according to a supply voltage. The power switch assumes the nonconductive state in response to an indication that a current through the power switch is exceeding the maximum allowed current. A method of operating a power switch is also described.