Method of Kelvin current sense in a semiconductor package

Details Method of Kelvin current sense in a semiconductor package Method of Kelvin current sense in a semiconductor package

2006-01-13

2008-03-18

Nguyen, Ha Tran (Department: 2829)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

C324S763010

Reexamination Certificate

active

07345499

ABSTRACT:
Regulating a direct current-to-direct current (DC-DC) converter, a semiconductor switch having an improved current sensing technique is used to switch a DC voltage input at a predefined frequency. The switch includes a control pin to receive a control signal for controlling a current flowing between an input pin and an output pin. The switch also includes a Kelvin sense pin electrically coupled to an output pad located on a semiconductor die of the device for sensing the current. An electrical path from the output pad to the output pin in the form of a conductive lead wire has a predefined resistance. The current is Kelvin current sensed using the predefined resistance to tightly control deviation in the current beyond a predefined range.

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