Operation
6.4.3ValleyHold
Theoutputsignalfollowstheobjecttemperatureuntilaminimumis
found.Oncetheholdtimeisexceededtheoutputsignal,tracksand
outputtheactualobjecttemperatureandthealgorithmwillstartover
again.Therangefortheholdtimeis0.1to998.9s.
Temp
output temperature
object temperature
hold time
hold time
Time
Figure27:ValleyHold
Adefinedholdtimeof999s(symbolinthedisplay)willputthe
deviceintocontinuousvalleydetectionmode.
Alowlevelinput(GND)atexternalinputFTC3willpromptly
interrupttheholdtimeandwillstarttheminimumdetectionagain.
MID41