Title:
SEMICONDUCTOR DEVICE, ELECTRONIC APPARATUS, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2024/057742
Kind Code:
A1
Abstract:
A semiconductor device 1 comprises: an output switch 9; an overcurrent protection circuit 34 that detects an output current IOUT flowing to the output switch 9 and applies overcurrent protection; an overheat protection circuit 36 that detects a temperature to be monitored and applies overheat protection; and a mode control circuit 53 that switches between setting each of the overcurrent protection circuit 34 and the overheat protection circuit 36 to a normal mode or to a capacitive load drive mode. In the capacitive load drive mode, the overcurrent protection circuit 34 limits the output current IOUT to an overcurrent protection threshold value or less. The overheat protection circuit 36 repeats forcibly turning off and restarting the output switch 9 each time the temperature to be monitored rises to a second overheat protection threshold value, which is lower than a first overheat protection threshold value set in the normal mode.
Inventors:
ADRIAN JOITA (JP)
MURAOKA KENJI (JP)
MURAOKA KENJI (JP)
Application Number:
PCT/JP2023/027789
Publication Date:
March 21, 2024
Filing Date:
July 28, 2023
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
H03K17/08; H02H3/087; H02J1/00
Domestic Patent References:
| WO2021125269A1 | 2021-06-24 |
Foreign References:
| JP2016215675A | 2016-12-22 | |||
| JP2016074332A | 2016-05-12 | |||
| JP2008054475A | 2008-03-06 |
Attorney, Agent or Firm:
SANO PATENT OFFICE (JP)
Download PDF: