Invention Grant
- Patent Title: Semiconductor device, load driving system, and method of current sensing of inductor current
-
Application No.: US16224039Application Date: 2018-12-18
-
Publication No.: US10454465B2Publication Date: 2019-10-22
- Inventor: Hideyuki Tajima
- Applicant: RENESAS ELECTRONICS CORPORATION
- Applicant Address: JP Tokyo
- Assignee: RENESAS ELECTRONICS CORPORATION
- Current Assignee: RENESAS ELECTRONICS CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: McDermott Will & Emery LLP
- Priority: JP2018-012966 20180129
- Main IPC: H03B1/00
- IPC: H03B1/00 ; H03K3/00 ; H03K17/082 ; G01R19/32 ; G01K3/14 ; B60R16/02 ; F16D48/06 ; H03K17/08

Abstract:
In one semiconductor chip, driving transistors, a current sensor, and a temperature sensor for sensing a temperature of a driver area are arranged in a driver area, and a current sensing circuit, an analog-digital converter, and a temperature sensor for sensing a peripheral circuit area are arranged in a peripheral circuit area. A correction circuit unit corrects a digital sensed voltage from the analog-digital converter based on a sensing result of the temperature sensor of the driver area and a sensed result of the temperature sensor of the peripheral circuit area.
Public/Granted literature
- US20190238124A1 SEMICONDUCTOR DEVICE, LOAD DRIVING SYSTEM, AND METHOD OF CURRENT SENSING OF INDUCTOR CURRENT Public/Granted day:2019-08-01
Information query