Method of on-chip current measurement and semiconductor IC

Details Method of on-chip current measurement and semiconductor IC Method of on-chip current measurement and semiconductor IC

2007-12-13

2010-10-12

Nguyen, Ha Tran T (Department: 2829)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

Reexamination Certificate

active

07812628

ABSTRACT:
A semiconductor integrated circuit is constituted to include a circuit block having a predetermined function, a power switch capable of supplying an operating power to the circuit block, and a current measuring circuit for obtaining a current flowing to the circuit block based on a voltage between terminals of the power switch in a state in which the power switch is turned on and an on-resistance of the power switch. The current flowing to the circuit block is obtained based on the voltage between terminals of the power switch in the state in which the power switch is turned on and the on-resistance of the power switch. Thus, it is possible to measure a current of the circuit block in a state in which a chip is normally operated.

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