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:
Sep. 29, 2020
Filed:
Nov. 28, 2018
Renesas Electronics Corporation, Tokyo, JP;
Keita Mochizuki, Tokyo, JP;
Kensuke Nakashima, Tokyo, JP;
Takahiro Korenari, Tokyo, JP;
Kouji Nakajima, Tokyo, JP;
RENESAS ELECTRONICS CORPORATION, Tokyo, JP;
Abstract
A semiconductor device includes a control unit which controls charging/discharging of a secondary battery, a bidirectional coupling unit which is electrically coupled to the control unit and through which a charging/discharging current flows, and a protection diode coupled between the control unit and the bidirectional coupling unit. The bidirectional coupling unit includes a discharging power transistor, a charging power transistor reversely coupled in series with the discharging power transistor, and a common drain pad which functions as a drain of the discharging power transistor and further functions as a drain of the charging power transistor. An anode of the protection diode is electrically coupled to the common drain pad. A cathode of the protection diode is electrically coupled to a power supply terminal of the control unit.