Semiconductor device with internal current generating section

Details Semiconductor device with internal current generating section Semiconductor device with internal current generating section

2005-10-21

2009-10-13

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C323S316000

Reexamination Certificate

active

07602235

ABSTRACT:
A semiconductor device comprising an internal current generating section (1) for supplying an output current (i2) dependent on an input current (i1) into an IC, an external terminal (2) for connecting an external resistor (Rex) to the input end side of the internal current generating section (1), a current limiting element (3) connoted between the input end of the internal current generating section (1) and the external terminal (2), a first current limiting section (4) for pulling in the input current (i1) when one end voltage VA of the current limiting element (3) is higher than a first threshold voltage VB, and a second current limiting section (5) for pulling in the input current (i1) when the terminal voltage VC of the external terminal (2) is higher than a second threshold voltage. System down can be avoided by operating the internal circuit surely regardless of the state of the external terminal.

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