Integrierte Halbleiterschaltung für Regler

Details

Veröffentlichungs-Nr.

EP3301537

Aktenzeichen

EP17193612

Anmeldetag

28. September 2017

Veröffentlichung

27. März 2019

Erteilung

27. März 2019

Rechtsraum

EP

IPC

H02M3/156H02M3/158H03K17/08H02M1/32G05F1/56

Abstract

A semiconductor integrated circuit (10) for a regulator includes an opening error detecting circuit (16) detecting an opened state of an output terminal (OUT); a short-circuiting error detecting circuit (17) detecting a short-circuiting state thereof; a first output terminal (P3) outputting a result detected by the opening error detecting circuit (16) to an external unit; a second output terminal (P4) outputting a result detected by the short-circuiting error detecting circuit (17) thereto; and a thermal shutdown circuit (15) detecting the temperature of a semiconductor substrate and turns off the voltage control transistor (Q1) if the detected temperature of the semiconductor substrate exceeds a predetermined temperature. A signal indicating the logic sum of an output signal of the thermal shutdown circuit (15) and that of the short-circuiting error detecting circuit (17) is outputted from the second output terminal (P4) such that the output signal of the opening error detecting circuit (16) is not blocked based on the output signal of the thermal shutdown circuit (15).

Anmelder

Firma

Mitsumi Electric Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete