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Infineon TLE4972, User Manual

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Infineon TLE4972 User Manual Download Page 27

The sensor calibration parameters are set as the result of the sensor calibration over temperature and sensor

trimming procedures in Infineon's production line. They are then modified automatically by the end of line

calibration algorithm, which is automatized by the software functionality explained in 

Chapter 4.2.4.3

 and

explained in details in the User manual [2].
The calibration parameters should not be changed manually by the user unless directly indicated by Infineon. It

is strongly recommended to store the original internal EEPROM content as explained in 

Chapter 4.2.6.2

 before

modifying the internal EEPROM content. Information about the calibration parameters are provided in the User

manual [2].

Figure 22

Calibration Parameters window

TLE4972 Current sensor programmer

User guide

4 System and functional description

User guide

27

Rev. 1.00

2022-04-05

Summary of Contents for TLE4972

Page 1: ...oduction The programmer board is thus not intended to meet any industrial specifications and the recommended operating ambient temperature is 80 C The following key aspects are discussed in this document Programmer board and evaluation board order information Programmer board and GUI description Programmer board ELV and SELV isolation scheme GUI installation procedure Typical application setup wit...

Page 2: ... Figure 1 TLE4972 Current Sensor Programmer The Current Sensor Programmer board connection with a 3 phase TLE4972 evaluation board is shown in the figure below The communication between the current sensor and programmer board is done through an interface cable Interface Cable Figure 2 TLE4972 evaluation board Green connected to Current Sensor Programmer board Red TLE4972 Current sensor programmer ...

Page 3: ...6 4 2 3 Optional external power supply connection 17 4 2 4 Mode selection 18 4 2 4 1 Continuous readout 18 4 2 4 2 Basic configuration 18 4 2 4 3 Double Code Word Calibration 19 4 2 5 Options drop down menu 22 4 2 5 1 EXT EEPROM 22 4 2 5 2 Temperature Readout 23 4 2 5 3 Register Readout 24 4 2 5 4 EXIT 24 4 2 6 Memory drop down menu 25 4 2 6 1 Basic Configuration 25 4 2 6 2 EEPROM Map 26 4 2 6 3 C...

Page 4: ...drivers installation 32 5 3 Abbreviations and definitions 35 5 4 References 36 6 Revision history 37 Disclaimer 38 TLE4972 Current sensor programmer User guide Table of contents User guide 4 Rev 1 00 2022 04 05 ...

Page 5: ... which is compliant with the relevant requirements and standards of the country in which they are operated The Evaluation Boards and Reference Boards as well as the information provided in this document are addressed only to qualified and skilled technical staff for laboratory usage and shall be used and managed according to the terms and conditions set forth in this document and in other related ...

Page 6: ...e to electrostatic discharge ESD Electrostatic control precautions are required when installing testing servicing or repairing the assembly Component damage may result if ESD control procedures are not followed If you are not familiar with electrostatic control procedures refer to the applicable ESD protection handbooks and guidelines Caution A drive that is incorrectly applied or installed can le...

Page 7: ...d to power up the programmer board and sensors on the evaluation board or external PCB Interface cable It enables the connection and communication between programmer board and evaluation board 3 2 Main features The Current Sensor Programmer board shown in the figure below together with the GUI software constitute a ready to use evaluation setup which provides the following main features Oscillosco...

Page 8: ...Figure 4 Current Sensor Programmer board features TLE4972 Current sensor programmer User guide 3 The board at a glance User guide 8 Rev 1 00 2022 04 05 ...

Page 9: ...ircuits are designed to meet the ELV safety standards and the interfacing devices are designed to meet the SELV safety standards Therefore regardless of the isolation scheme used on the DUT Board a safe isolation barrier is provided by the programmer Nevertheless under all circumstances proper care must be taken while working with high voltage applications Figure 5 Current Sensor Programmer board ...

Page 10: ...oard Load Software GUI Figure 6 Test setup of TLE4972 DUT board with programmer board Once the test set up is done the user has to to connect the programmer board through USB connection and open the GUI software in order to start the communication with the hardware If the USB connection is successful the LED D1 on the programmer board will light If the programmer board is correctly recognized by t...

Page 11: ...ll appear Chapter 4 2 4 1 and the led D2 on the programmer board will start blinking The software GUI will automatically configure itself using configuration data stored on the Infineon evaluation board external EEPROM TLE4972 Current sensor programmer User guide 4 System and functional description User guide 11 Rev 1 00 2022 04 05 ...

Page 12: ...selecting the Set button the tool uses the value entered here to convert the V reading into A reading in the continuous readout mode Figure 8 Connection with generic DUT board After clicking on Set the Continuous readout window will appear Chapter 4 2 4 1 and the led D2 on the programmer board will start blinking Since there is no external EEPROM on the generic DUT board the software GUI cannot co...

Page 13: ...board have not been recognized This might be due to malfunctioning sensors or to interface problems such as soldering issues bad cabling or wrong connection scheme Figure 10 Design step not supported error TLE4972 Current sensor programmer User guide 4 System and functional description User guide 13 Rev 1 00 2022 04 05 ...

Page 14: ...ard connector pinout Table 2 DUT board connector pinout Pin Number Pin name Pin function 1 AOUT1 Analog output voltage of sensor 1 2 OCD1_1 Over Current Detection channel 1 of sensor 1 open drain 3 VREF1 Reference voltage of sensor 1 4 OCD2_1 Over Current Detection channel 2 of sensor 1 open drain 5 AOUT2 Analog output voltage of sensor 2 6 OCD1_2 Over Current Detection channel 1 of sensor 2 open ...

Page 15: ... 15 Reserved Additional ADC input connected to µC XMC4700 P14_9 on the programmer board 16 V5 5 V supply voltage 17 Reserved External trigger input connected to µC XMC4700 P4_0 on the programmer board 18 Reserved 19 SCL Clock for communication with external EEPROM on Infineon s evaluation boards 20 GND Ground connection 21 SDA Data link for communication with external EEPROM on Infineon s evaluati...

Page 16: ...nout Table 3 Measurement header pinout Pin Number Pin name Pin function 1 AOUT1 Analog output voltage of sensor 1 2 OCD1_1 Over Current Detection channel 1 of sensor 1 open drain 3 VREF1 Reference voltage of sensor 1 4 OCD2_1 Over Current Detection channel 2 of sensor 1 open drain 5 AOUT2 Analog output voltage of sensor 2 6 OCD1_2 Over Current Detection channel 1 of sensor 2 open drain 7 VREF2 Ref...

Page 17: ...mer board 18 Reserved 19 V33 3 3 V supply 20 GND Ground connection 4 2 3 Optional external power supply connection The programmer board typically draws about 350 mA when connected to the TLE4972 evaluation boards This current can be delivered via the USB port of a PC which is usually specified to deliver up to 500 mA A reverse current protection diode ensures safe operation and protects the USB po...

Page 18: ...e pane on the top right side it displays all parameters measured for sensor 1 to sensor 3 at the last sampling event 4 Mode selection drop down menu on the top right side to start a new mode click the Stop button shown on the bottom right corner of the window and select a new mode from the Mode Selection drop down menu which is on the top right corner 5 Crosstalk matrix compensation check box it c...

Page 19: ...nt range values 4 Nominal Sensitivity this represents the nominal sensitivity in mV A that is resulting from the choice of the current rail transfer factor and measurement range values This is the value to be used as target sensitivity for calibration 5 Basic Config button this is a shortcut for the Basic Configuration window described in Chapter 4 2 6 1 For further information about target sensit...

Page 20: ... Itest the user has to enter in this field the test current used during calibration Measure the test current using a calibrated current source a shunt combined with a multimeter or any other precise current measurement device 4 Vout Itest button this button has to be pressed as part of the calibration procedure explained above By pressing this button the software executes the Double Code Word algo...

Page 21: ...rors are indicated in the Step by step instructions box click on the Burn EEPROM button to store the calibration parameters in the sensor integrated EEPROM 6 Using the measurement header perform a sensitivity and offset measurement to check if the target sensitivity and offset are met Sensitivity and offset measurement procedure is explained in the User Manual 2 TLE4972 Current sensor programmer U...

Page 22: ...wn list Figure 16 EXT EEPROM menu item The following information are programmed in the external EEPROM PCB Timestamp related to evaluation board hardware release Sensor Short Name family name of the current sensors on the evaluation board Sensor Long Name complete product name of the current sensors on the evaluation board Sensor to Output Mapping 0 is default It defines the mapping of the three s...

Page 23: ...t to default values Save to Load from file to save and restore the external EEPROM content Burn button the external EEPROM content is effectively written in the external EEPROM after pressing the Burn button Read button to load the dialog box with values read from the external EEPROM It can be used to verify correct programming 4 2 5 2 Temperature Readout The Options drop down menu also offers the...

Page 24: ...t is executing then analog output and OCDs output are not reliable since the sensors are put into test mode The registers accessible by the user are reported in the user manual 2 Figure 18 Registers Readout window 4 2 5 4 EXIT This menu item closes the Current Sensor Programmer GUI window TLE4972 Current sensor programmer User guide 4 System and functional description User guide 24 Rev 1 00 2022 0...

Page 25: ...tively programmed In case an Infineon evaluation board is connected the software will ask the user whether to update the external EEPROM of the evaluation board to fit to the new programmed sensor settings as shown in the figure below The external EEPROM content is shown in Chapter 4 2 5 1 E g if the measurement range setting is changed the sensitivity of the sensors in mV A is updated in the exte...

Page 26: ...of the content of the selected register field 4 Decimal text box on the right it displays the decimal conversion of the content of the selected register field 5 Sensor selection drop down menu on the right it is used to select the sensor for which the EEPROM content has to be displayed 6 Burn EEPROM button on the bottom it effectively programs the displayed internal EEPROM content in the selected ...

Page 27: ...ined in details in the User manual 2 The calibration parameters should not be changed manually by the user unless directly indicated by Infineon It is strongly recommended to store the original internal EEPROM content as explained in Chapter 4 2 6 2 before modifying the internal EEPROM content Information about the calibration parameters are provided in the User manual 2 Figure 22 Calibration Para...

Page 28: ...actor enter the nominal current rail transfer factor for the selected sensor 4 Calculate Threshold pane this section allows to calculate the resulting threshold in ampere given the OCD threshold code programmed in the corresponding internal EEPROM register of the selected sensor The OCD threshold code can be easily programmed using the Basic Configuration window Chapter 4 2 6 1 5 Calculate Registe...

Page 29: ...ter here half of the measured value The procedure for the sensitivity measurement is explained in the User manual 2 The current rail transfer factor estimation is provided with a typical accuracy of 5 Note In order to obtain a precise estimation of the current rail transfer factor it is suggested to measure it through the method explained above on multiple systems more than 10 and to consider the ...

Page 30: ...installation Figure 25 EvalKit Installer Welcome Read through the license agreement carefully and continue the installation by accepting it see orange color box If the license agreement is not accepted then the installation will be aborted Click Next to continue with the installation Figure 26 EvalKit Installer License Agreement TLE4972 Current sensor programmer User guide 5 References and appendi...

Page 31: ...r Click Install to begin the installation The installation will continue if you have the admin rights otherwise the installation might be aborted without completing the installation Figure 28 EvalKit Installer Confirm Installation If the installation was successful then the following window will display Click Close to complete the software installation TLE4972 Current sensor programmer User guide ...

Page 32: ...dow to the installer window is automatically opened at the end of the installation procedure Click on the Extract button to continue the driver installation procedure Figure 30 FTDI CDM Drivers Files Extraction The welcome wizard for the driver installation will appear after the successful extraction Click Next to continue with the installation TLE4972 Current sensor programmer User guide 5 Refere...

Page 33: ...orange color box If the license agreement is not accepted the installation will be aborted Click Next to continue with the installation Figure 32 FTDI CDM Drivers License Agreement Click Finish to complete the device driver installation TLE4972 Current sensor programmer User guide 5 References and appendices User guide 33 Rev 1 00 2022 04 05 ...

Page 34: ...se of connection problems go to the device manager and check whether the driver was installed correctly or not If you see the window as shown in the figure below please reinstall the driver software as described in the procedure above Figure 34 Missing RS232 HS Driver TLE4972 Current sensor programmer User guide 5 References and appendices User guide 34 Rev 1 00 2022 04 05 ...

Page 35: ...hod GUI Graphical User Interface OCD Over Current Detection PCB Printed Circuit Board PCN Process Change Notification PD Product Discontinuation RMA Returned Material Analysis SCL Serial Clock SDA Serial Data USB Universal Serial Bus DUT Device Under Test LED Light Emitting Diode MCU Micro Controller Unit SELV Safety Extra Low Voltage ELV Extra Low Voltage TLE4972 Current sensor programmer User gu...

Page 36: ...eon TLE4972 AE35S5 DS vxx_xx EN pdf Infineon TLE4972 AE35D5 DS vxx_xx EN pdf 2 Infineon TLE4972 User_manual vxx_xx EN TLE4972 Current sensor programmer User guide 5 References and appendices User guide 36 Rev 1 00 2022 04 05 ...

Page 37: ...Revision history Document revision Date of release Description of changes 01 00 05 04 2022 Initial release TLE4972 Current sensor programmer User guide 6 Revision history User guide 37 Rev 1 00 2022 04 05 ...

Page 38: ... liabilities of any kind including without limitation warranties of non infringement of intellectual property rights of any third party with respect to any and all information given in this application note The data contained in this document is exclusively intended for technically trained staff It is the responsibility of customer s technical departments to evaluate the suitability of the product...

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