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Thread: FAQ for miscellaneous ePower Topics

  1. #1

    Infineon Employee
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    I have a TLE9869QX. Does anyone know what the purpose of the 100TP pages is?

    The 100 Times-Programmable Page (short: 100TP) can used to store application relevant data, like configuration data, e.g. application variants information, calibration data, etc.
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

  2. #2

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    What is the recommended Vs Cap value in order to increase the system availivility tim

    The Vs cap can be used to keep the device supplied to a defined period of time in case of the power loss (VBAT loss) scenario. The addition working time could be used to store application relevant data into the data flash. The size of the Vs cap is calculated by "C = I * t / U". I is the current consumption of the device, e.g. 30mA. t is the time the device should stay active, e.g. 16ms. And U is the voltage delta between the starting voltage of the cap and the reset voltage of the device, e.g. 9V - 3V = 6V. The capacitance will now be: C = 30mA * 16ms / (9V - 3V) = 80F.
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

  3. #3

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    Which is the maximum quiescent current of device?

    The quiescent current depends on the operation mode of the device. The "sleep mode" provides the lowest quiescent current, which is the range of double digit A. Please refere to the datasheet for absolute values.
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

  4. #4

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    What is the difference between the (external) window watchdog WDT1 and the integrated

    The integrated WDT is inside the microcontroller core, while the WDT1 is located in the system control unit of the device. While the WDT1 is mandatory for automotive applications and cannot be disabled (except for debug mode and stop mode) the WDT is completely controllable by software and freely available to the user application.
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

  5. #5

    Infineon Employee
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    Which is the purpose of the OTP pages?

    The One-Times-Programmable Page (short: OTP) can used to store application relevant data, like configuration data, e.g. application variants information, calibration data, etc.
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

  6. #6

    Infineon Employee
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    Has Vs to be protected externally?

    The max ratings must be obeyed. A diode is recommended in the Vs net before the Vs cap to prevent the Vs cap from being discharged by others than the device itself.
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

  7. #7

    Infineon Employee
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    Does the Vs pin needs to be electrically protected externally?

    The max ratings must be obeyed. A diode is recommended in the Vs net before the Vs cap to prevent the Vs cap from being discharged by others than the device itself.
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

  8. #8

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    What is the difference between the 10bit ADC(1) and the 8bit ADC2?

    The ADC1 is a completely software controlled ADC fully available to the user application. While the ADC2 is a diagnostic ADC which supervises the voltages/temperatures in the device. Programmable thresholds for each channel (voltage) provides a user adjustable generation of interrupts in case a measured voltage is crossing the thresholds.
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

  9. #9

    Infineon Employee
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    FAQ for miscellaneous ePower Topics

    FAQ for miscellaneous ePower Topics.
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

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