Integrierte Halbleiterschaltung für Lichtemittierendes Element

Details

Veröffentlichungs-Nr.

EP3247173

Aktenzeichen

EP17170993

Anmeldetag

15. Mai 2017

Veröffentlichung

13. Oktober 2021

Erteilung

13. Oktober 2021

Rechtsraum

EP

IPC

H05B33/08G01R31/52H03K19/173H05B45/54// H05B45/14H05B45/48

Abstract

A light emitting element driving semiconductor integrated circuit constitutes at least a part of a light emitting element driving device arranged to drive a series connection unit including a plurality of light emitting elements. The light emitting element driving semiconductor integrated circuit includes a single-element short-circuit detection unit arranged to detect that one of the plurality of light emitting elements is short-circuited, and a control unit arranged to control a power element of the light emitting element driving device so that current supplied from the light emitting element driving device to the series connection unit is increased, when the single-element short-circuit detection circuit detects that one of the plurality of light emitting elements is short-circuited.

Anmelder

Firma

Rohm Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete