TLE9261-3QX Datasheet, PDF (116/186 Pages) Infineon Technologies AG – Dedicated Data Sheets are available for the different product variants

TLE9261-3QX
Supervision Functions
14.9.2 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.
14.9.3 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.
Data Sheet
116
Rev. 1.1, 2014-09-26