The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 2021
Filed:
Aug. 02, 2017
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventors:
Shingo Hashiguchi, Kyoto, JP;
Tetsuo Tateishi, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 3/155 (2006.01); B60R 16/033 (2006.01);
U.S. Cl.
CPC ...
H02M 3/1582 (2013.01); B60R 16/033 (2013.01); H02M 3/155 (2013.01);
Abstract
Provided is an integrated circuit package which complementarily switches on/off a MOS transistor Q(first switch) and MOS transistor Q(second switch) in accordance with an output voltage Vout, and which externally outputs a pulse signal having a fixed on-duty D during a step-up/step-down mode. The integrated circuit package has a determination unitfor determining the impedance of an external component connected to an external pin Pthat outputs the pulse signal to the exterior during the step-up/step-down mode, and determining whether the external component is a third switch on the basis of the impedance determination result.