Bipolar semiconductor integrated circuit with a protection circu

Details Bipolar semiconductor integrated circuit with a protection circu Bipolar semiconductor integrated circuit with a protection circu

1997-02-06

1998-10-13

Whitehead, Jr., Carl W.

Active solid-state devices (e.g., transistors, solid-state diode

Bipolar transistor structure

With enlarged emitter area

257546, 257557, 257593, 257545, H01L 2360

Patent

active

058216014

ABSTRACT:
A bipolar semiconductor integrated circuit has a pnp transistor through which a DC power is supplied from an external DC power to various elements of the bipolar IC and a constant current circuit for turning the pnp transistor on and regulating the base current of the pnp transistor to a constant level causing operation in the saturation range of the pnp transistor.

REFERENCES:
patent: 5151767 (1992-09-01), Wong
patent: 5604373 (1997-02-01), Susak et al.

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