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. 22, 2020
Filed:
Jan. 16, 2019
Stmicroelectronics (Grenoble 2) Sas, Grenoble, FR;
Stmicroelectronics S.r.l., Agrate Brianza (MB), IT;
Sergio Lecce, Pavia, IT;
Gilles Troussel, Grenoble, FR;
STMICROELECTRONICS S.R.L., Agrate Brianza, IT;
STMICROELECTRONICS (GRENOBLE 2) SAS, Grenoble, FR;
Abstract
A driver circuit includes a supply node, a control node configured to receive a control signal, and an output node. An output transistor is coupled to the output node to provide the CAN bus drive signal via the current path through the output transistor. A current mirror is in a current line from the supply node to the output node through the output transistor. The current line includes an intermediate portion between the current mirror and the output transistor. The current mirror is configured to be switched, as a function of the control signal between a first, dominant mode, with the CAN bus drive signal applied to the output node via the output transistor, and a second, recessive mode, with the output transistor providing a high output impedance at the output node.