Data Sheet
119
Rev. 1.00
2017-07-31
TLE9262BQXV33
Supervision Functions
15.9.2
Temperature Prewarning
As a next level of thermal protection a temperature prewarning is implemented if the main supply VCC1
reaches the thermal prewarning temperature threshold
T
jPW
. Then the status bit
TPW
is set. This bit can only
be cleared via SPI once the overtemperature is not present anymore. Independent of the SBC Mode the
thermal prewarning is only active if the VCC1 is ON.
15.9.3
SBC Thermal Shutdown
As a highest level of thermal protection a temperature shutdown of the SBC is implemented if the main supply
VCC1 reaches the thermal shutdown temperature threshold
T
jTSD2
. Once a TSD2 event is detected SBC Fail-
Safe Mode is entered for
t
TSD2
to allow the device to cool down. After this time has expired, the SBC will
automatically change via SBC Restart Mode to SBC Normal Mode (see also
Chapter 5.1.6
).
When a TSD2 event is detected, then the status bit
TSD2
is set. This bit can only be cleared via SPI in SBC
Normal Mode once the overtemperature is not present anymore. Independent of the SBC Mode the thermal
shutdown is only active if VCC1 is ON.
