Title:
SEMICONDUCTOR DEVICE AND ELECTRONIC CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2020014356
Kind Code:
A
Abstract:
To provide a semiconductor device and an electronic control device, capable of cutting off reverse electric conduction from a load to a power supply.SOLUTION: A power transistor QN1 is provided between a positive power supply terminal Pi2(+) and a load drive terminal Po2(+). A source and a back gate are coupled to the positive power supply terminal Pi2(+). A power transistor QN2 is provided in series with the power transistor QN1. A source and a back gate are coupled to the load drive terminal Po2(+). A booster circuit CP1a charges a gate of the power transistor QN1. When potential of a negative power supply terminal Pi2(-) is higher than potential of the positive power supply terminal Pi2(+), a gate discharge circuit DCG1a discharges gate charge of the power transistor QN1 to the source.SELECTED DRAWING: Figure 3
Inventors:
SOMA OSAMU
Application Number:
JP2018136573A
Publication Date:
January 23, 2020
Filing Date:
July 20, 2018
Export Citation:
Assignee:
RENESAS ELECTRONICS CORP
International Classes:
H02H11/00; H03K17/687
Domestic Patent References:
| JP2002512498A | 2002-04-23 | |||
| JP2001224135A | 2001-08-17 | |||
| JP2017188773A | 2017-10-12 | |||
| JP2007082374A | 2007-03-29 | |||
| JP2012060763A | 2012-03-22 | |||
| JP2008283743A | 2008-11-20 |
Foreign References:
| US20180337550A1 | 2018-11-22 |
Attorney, Agent or Firm:
Tsutsui International Patent Office