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Type: Posts; User: Julella VLL

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  1. What is the Demag filter after the BEMF comparator?

    The Demag filter is an Asynchronous State Machine, which behavior follows the following state diagram:
    4953
  2. When will NAC be triggered?

    NAC is triggered everytime BootROM is executed, which is as soon as the device goes in active mode.
  3. Embedded Power Toolchain description

    The Embedded Power ICs SDK is based on three parts.

    Keil µVision (Integrated developent Environment)
    .packfile (library for Keil, provided by Infineon, can be downloaded in Keil packinstaller)...
  4. Can I use ADC3/4 for current sensing?

    It is not recommended.
    Sigma Delta ADC is designed to measure absolute angle sensors. The sample time may be unsufficient to measure inside the PWM period.
    The user will also need an external...
  5. TLE987x: How can I protect my Device against reprogramming?

    When The Device is Password protected, it is not possible to download Code into NVM as Mode 2 is not accessible (See Bootrom UM 4.4.2.4).
    However, if I managed to guess the password by trying out...
  6. TLE985x: Erasing/reprogramming the controller during Sleep mode

    If the device is not waking up and stays/remains in sleep mode the debugger connection is not possible .

    Below steps can be followed to wake up the device using MONx pin and connect the debugger...
  7. Using Assembly Code-Snippets in Keil ePower Projects

    Writing a function in Assembly and calling it from Main
    The most straightforward way of including assembly in your C-Code is to just write the function, export its Symbol and call it form the Main...
  8. Software recommendation for the unused pins of TLE98xx

    All unused pins should be configured as inputs.
    If there is no external pull-down/up, the internal pull-downs should be activated for the lowest current consumption.
  9. Is there a way to add custom tab in the config wizard?

    It is quite straight forward: assuming you want to include the tab from the FOC example in a new Keil project:

    1. Copy the tab file from the FOC example project:...
  10. NAC and NAD location

    NAC and NAD Values are not in the TP100.
    NAC and NAD value can be modified more than 100 times.
  11. LIN overtemperature

    User Manual we see:
    LIN Transceiver Overtemperature

    If the LIN transmitter detects an overtemperature condition the transmitter will be deactivated temporarily by entering the LIN Receive-Only...
  12. Can the Reverse Polarity Protection be placed in the GND path?

    It is not recommended to place the reverse polarity protection in the GND path.
    There are several reasons why this should be avoided:

    - Module GND != Car GND, i.e. there could be errors sensing...
  13. Do you already have an implementation on TLE987x with "sinusoidal" current control?

    We have an example code for sensorless field oriented control. The resulting current is in sinusoidal shape.
  14. What is needed to be done (in HW and SW) to make the TLE9879-QXW40 ASIL-B level?

    This is specified in the ISO26262.
    The Quality department can deliver FIT Rates and failure distribution data on request. (via eTool)
  15. After the initial calibration: is the tolerance of LP_CLK inside +/- 1.5%?

    P.3.1.4=1.5% accuracy refers not to the LP_CLK, but to the CGU / fPLL (s.a. DS rev1.0, ch. 6.3, 1st paragraph) after the PLL locks during startup at 5MHz (s.a. UM rev1.3 chapter 7.3.4.2.). This...
  16. Is the internal LP_CLK factory calibrated by INFINEON to 18 MHz?

    LP_CLK is the abbreviation for "Low Precision Clock". There is no end of line calibration. This oscillator source is usually used for low-power operation, e.g. WDT1 source, which has to run on an...
  17. Should GND_REF be connected to GND on PCB?

    Do not connect the GND_REF to the PCB GND.
    This will have a negative influence on the ADC1 measurement. It must stay decoupled
    GND_REF is internally connected to GND on the chip.
  18. End Of Line programming hints

    We used a "SEGGER Flasher Portable PLUS", which is handled in the same way as "Segger Flasher Pro".

    Segger Product website: https://www.segger.com/products/production/flasher/models/flasher-pro/...
  19. How can you calculate the power dissipation inside the TLE986x and TLE987x?

    We recommend to use the power dissipation calculator tool on the Infineon Toolbox.
  20. How is the chargepump frequency derived and how can it be calculated?

    1. The charge pump clock is derived the from system clock via a clock divider.

    2. The clock divider is configured by F_CP and DITH_UPPER/LOWER

    3. The divider is combined by F_CP and...
  21. Are the internal gate resistances (RGGND) always connected to GND?

    This depends on the operating power mode of the device. The behavior is as following:

    Active mode: the BDRV is in active mode, VSD is powered. In this case, the MOSFET is driven by the active...
  22. Where does the specification for the buffer capacitors come from?

    The capacitor values ensure the stability of the power supplies under load jump conditions. Load jumps in general are sudden changes of the load of the respective regulator output (vs. line jumps,...
  23. Do you have any recommendation on overmolding TLE98xx products?

    Infineon is using state-of-the-art automotive package components.
    Overmolding causes different / new stresses at product level compared to traditional board assembly and vary depending on the...
  24. How can I protect my Program and Data from Read out?

    Note: this is Valid for the BF-Step.
    Information about the NVM-Protection can be found in the BootROM UM Rev. 1.4 Chapter 4.4.2.7 and Chapter 5.4.5
    The UART BLS Mode has 6 Modes and entering them...
  25. How to update NAC and NAD via uIO Stick?

    This example code helps to download firmware via uIO Stick using VS, LIN and GND.

    4681
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