![]() |
Electronic Components Datasheet Search |
|
TLE9185QXV33 Datasheet(PDF) 101 Page - Infineon Technologies AG |
|
|
TLE9185QXV33 Datasheet(HTML) 101 Page - Infineon Technologies AG |
101 / 192 page ![]() TLE9185QXV33 BLDC Driver Supervision Functions Datasheet 101 Rev.1.0 2021-01-21 10.8 Thermal Protection Three independent and different thermal protection features are implemented in the device according to the system impact: • Individual thermal shutdown of specific blocks • Temperature prewarning of VCC1 voltage regulator • Device thermal shutdown due to VCC1 overtemperature 10.8.1 Individual Thermal Shutdown As a first-level protection measure, the charge pump is independently switched off if the respective block reaches the temperature threshold TjTSD1. Then the TSD1 bit is set. This bit can only be cleared via SPI once the overtemperature is not present anymore. Independent of the device mode the thermal shutdown protection is only active if the respective block is ON. The respective modules behave as follows: • Charge pump: If the charge pump reaches TjTSD1, then CP_OT is set, CPEN is cleared and the activated MOSFETs are actively discharged with their respective static currents during their respective active cross current protection times (tHBxCCP active). When all tHBxCCP active elapsed, then the charge pump and the MOSFETs active discharge are disabled and the current sense amplifier is deactivated. Once the over temperature condition is not present anymore, then CPEN has to be configured again by SPI. Note: The diagnosis bits are not cleared automatically and have to be cleared via SPI once the overtemperature condition is not present anymore. 10.8.2 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. 10.8.3 Thermal Shutdown As a highest level of thermal protection a temperature shutdown of the device is implemented if the main supply VCC1 reaches the thermal shutdown temperature threshold TjTSD2. Once a TSD2 event is detected Fail- Safe Mode is entered. Only when device temperature falls below the TSD2 threshold then the device remains in Fail-Safe Mode for tTSD2 to allow the device to cool down. After this time has expired, the device will automatically change via Restart Mode to Normal Mode (see also Chapter 5.4.6). When a TSD2 event is detected, then the status bit TSD2 is set. This bit can only be cleared via SPI in Normal Mode once the overtemperature is not present anymore. For increased robustness requirements it is possible to extend the TSD2 waiting time by 64x of tTSD2 after 16 consecutive TSD2 events by setting the SPI bit TSD2_DEL. The counter is incremented with each TSD2 event even if the bit TSD2 is not cleared. Once the counter has reached the value 16, then the bit TSD2_SAFE is set and the extended TSD2 waiting time is active. The extended waiting time will be kept until TSD2_SAFE is cleared. The TSD counter is cleared when TSD2 or TSD2_DEL is cleared. Note: In case a TSD2 overtemperature occurs while entering Sleep Mode then Fail-Safe Mode is still entered. Note: In case of a TSD2 event, the FAILURE bit is set to ‘1’ and the DEV_STAT field is set to ‘01’ inside the DEV_STAT register. |
Similar Part No. - TLE9185QXV33 |
|
Similar Description - TLE9185QXV33 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |