Patent · US Expired

Sensed current driving device

US5408141A · kind A · utility

48Cited by

12References

4Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Joseph A. Devore · Dallas, US
Ross E. Teggatz · McKinney, US
Konrad Wagensohner · Moosburg an der Isar, DE

Key dates

Filing date	Jan 4, 1993
Grant date	Apr 18, 1995
Priority date	—
Expiry date	Jan 4, 2013

Classification

Technology area (CPC H)Electricity
CPC primaryH10D30/659
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

An integrated power device comprises a power transistor (26) and a plurality of sense transistors (38), (40), (42), (44), and (46). Sense transistors (38), (40), (42), and (44) are constructed around the periphery of the active area occupied by power transistor (26). Sense transistor (46) is located within the interior of the active area occupied by power transistor (26) and contact is made to the necessary source region (64) of transistor (46) using a second level of metal interconnect to form a source contact (74).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.