INTEGRATED CIRCUIT FOR DRIVING INDUCTIVE LOAD

Title:

INTEGRATED CIRCUIT FOR DRIVING INDUCTIVE LOAD

Document Type and Number:

Japanese Patent JPS63265460

Kind Code:

A

Abstract:

An integrated circuit for driving inductive loads comprises at least one substrate (30) and a plurality of separate epitaxial wells (31-35), and has at least one output terminal (14) for connection to an inductive load (16) and a reference terminal (15) for connection to a reference voltage (17). To reliably isolate the different epitaxial wells in each operating state, the circuit comprises diodes interposed between the substrate (30) on one side and the output and reference terminals (14,15) on the other to set the substrate (30) to the reference potential when the potential on the output terminal (14) is greater than the reference potential and to set the substrate to the output potential when the latter becomes smaller than the reference potential.

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Inventors:

MARUKO MOREERI
FUABIO MARUKIO
FURANSESUKO TORIKORI
JIYANPIETORO MATSUGIOONI

Application Number:

JP7793688A

Publication Date:

November 01, 1988

Filing Date:

March 29, 1988

Export Citation:

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Assignee:

SGS MICROELETTRONICA SPA

International Classes:

H01L27/02; H01L27/06; H01L21/8222; H03K17/16; H03K17/64; (IPC1-7): H01L27/06; H03K17/64

Attorney, Agent or Firm:

Fukami Hisaro (2 outside)

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