TLE9263QX datasheet(110/164 Pages) INFINEON

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Data Sheet

110

Rev. 1.1, 2014-09-26

TLE9263QX

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 TjPW. 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 TjTSD2. Once a TSD2 event is detected SBC Fail-Safe

Mode is entered for tTSD2 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.

TLE9263QX Datasheet(PDF) 110 Page - Infineon Technologies AG