Semiconductor integrated circuit for monitoring switch, electronic control unit and vehicle
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United States of America Patent
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May 14, 2019
Grant Date -
Jan 25, 2018
app pub date -
Jul 13, 2017
filing date -
Jul 20, 2016
priority date (Note) -
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Abstract
A semiconductor integrated circuit for monitoring a switch, including: a first detection part that detects a state of a first switch; a second detection part that detects a state of a second switch; a sub-voltage monitoring part that monitors whether the sub-voltage is within a predetermined range; a switch monitoring part that monitors a change in a state of the first switch and a change in a state of the second switch; a setting part that determines an invalid period, during which the monitoring result of the switch monitoring part regarding the change in the state of the second switch is invalidated; and a transmission part that transmits the monitoring result of the switch monitoring part and information on the invalid period.
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