Infineon TLE987x EvalBoard Rev1.2 User Manual
About This Document
Scope and Purpose
This user manual assists users with the Infineon TLE987x EvalBoard, designed for evaluating the hardware and software functionalities of the TLE987x device family. It provides detailed information on the board's layout, jumper settings, interface, and debug options, covering the evaluation platform, software development, and downloading to the TLE987x.
Intended Audience
This document is for anyone working with the TLE987x EvalBoard.
Abbreviations and Definitions
| Abbreviation | Definition |
|---|
| BLDC | Brushless direct current |
| BSL | Bootstrap loader |
| GH1, 2, 3 | Gate high-side MOSFETs for phases 1, 2, 3 |
| GL1, 2, 3 | Gate low-side MOSFETs for phase 1, 2, 3 |
| GPIO | General purpose input / output |
| ISP | In-system programmer |
| LIN | Local interconnect network |
| MON | Monitor |
| n.c. | Not connected |
| n/u | Not used |
| OP1 | Negative operational amplifier input |
| OP2 | Positive operational amplifier input |
| RST | Reset |
| SL | Source low-side MOSFET |
| SWD | Arm® serial wire debug |
| TMS | Test mode select |
| UART | Universal asynchronous receiver transmitter |
| VAREF | Reference voltage |
| VBAT | Battery voltage supply |
| VCOM | Virtual COM-port |
| VCP | Voltage charge pump |
| VDDC | Core supply |
| VDDEXT | External voltage supply output |
| VDDP | I/O port supply |
| VDH | Voltage drain high-side MOSFET |
| VS | Battery supply input |
| VSD | Battery supply input for MOSFET driver |
Concept
The TLE987x EvalBoard is designed as a user-friendly tool for familiarization with Infineon's Embedded Power IC TLE987x devices. It features a socket for testing and evaluating all ICs of the TLE987x family. Each IC pin is accessible via pin headers. The board includes reverse polarity protection for the input voltage supply.
Three MOSFET half-bridges are integrated to drive a BLDC motor. The board can be connected to a car supply or similar power source and provides a Serial Wire Debug (SWD) port for external debugger connection.
Operation is possible using standard laboratory equipment for power supply, with LIN communication facilitated via banana jacks. A battery LED indicates correct power supply connection, and reverse polarity protection prevents damage from incorrect connections.
The board concept diagram illustrates the TLE987x IC at the center, connected to various interfaces and components. Key connections include:
- Power Supply: GND, VBAT, VDH, VS, with a PI-filter and reverse polarity protection.
- Motor Power Stage: Three phases (Phase 1, Phase 2, Phase 3) connected to a 3-phase power half-bridge, which includes a shunt for current sensing (CSA).
- Communication Interfaces: LIN (connected to a uIO BSL Interface), SWD Interface, and UART Interface.
- Control and Debug: Pushbuttons for Monitor (MON) and Reset, and various LEDs (P0.1, P0.2, P0.3, P1.2, P1.0, P1.3, P1.4, P0.4).
- Analog Inputs: POTI (P2.4) and Sensors (HALL, ENCODER).
Interconnects
The EvalBoard features various connection points for power, communication, and motor control.
Banana Jacks for Ground, Supply, and LIN
Colored banana jacks are provided for ground, supply (up to 28 V), and LIN communication. These include:
- GND (purple)
- VBAT (red)
- LIN (green)
Terminal Pins for Motor Connection
Three red-marked pins (Phase1, Phase 2, Phase3) provide access to the three half-bridges for connecting a brushless motor.
uIO Stick Connector
A green-marked 16-pin header (2x8, 2.54 mm pitch) serves as a uIO bootstrap loader. This interface allows connecting additional hardware for bootstrap loading and programming the TLE987x via LIN. Further information is available at www.infineon.com/uio or www.hitex.com/uio.
Pin Configuration uIO BSL
| Pin | Pin | Description |
|---|
| n.c. (1) | GND (2) | |
| n.c. (3) | n.c. (4) | |
| LIN (5) | VS_PRE (6) | |
| RESET (7) | n.c. (8) | |
| n.c. (9) | n.c. (10) | |
| n.c. (11) | n.c. (12) | |
| n.c. (13) | n.c. (14) | |
| n.c. (15) | n.c. (16) | |
Pin Header for SWD
A blue-marked 10-pin header (2x5, 1.27 mm pitch) on the evaluation board is used for debugging.
Pin Configuration SWD Interface
| Pin | Pin | Description |
|---|
| 5 V (1) | SWDIO (TMS) (2) | |
| GND (3) | SWCLK (P0.0) (4) | |
| GND (5) | n.c. (6) | |
| n.c. (7) | n.c. (8) | |
| DBPRE (9) | RESET (10) | |
Test Points and LEDs
The board provides several test points and LEDs for visual validation and measurement.
Test Points:
- Ground test points are available throughout the board.
- Shunt 1.1 and Shunt 1.2 are located on both sides of the 5 mΩ shunt.
- LIN_INT is used to measure the LIN voltage.
LEDs: There are 9 LEDs:
- LED 1 to 8 can be connected to General Purpose Inputs/Outputs (GPIOs).
- LED 9 (Vbat LED) indicates the power supply status.
The test points and LEDs are visually indicated on the board layout, with test points circled in yellow and LEDs highlighted in a yellow box.
Jumper Settings
The EvalBoard features various jumpers to configure its operation and connections.
The jumper position diagram illustrates two possible positions for jumpers on Port 0, Port 1, and Port 2, allowing connection or disconnection of LEDs, potentiometer, encoder, or Hall sensor.
| Jumper | Description |
|---|
| JP7 | Closes this jumper to connect the MON button to the MON input. Opening it disconnects the MON button from the MON input. |
| JP8 | Closed by default. If opened, the device is not supplied. This jumper is used to open the VS line for measuring current flowing into the TLE987x device. |
| JP9 | Closes this jumper to connect the RESET button to the RESET input. Opening it disconnects the RESET button from the RESET input. |
| JP10 | Closes this jumper to connect an additional 1 kΩ pull-up resistor, intended for LIN master communication. Opening it configures the TLE987x as a slave in a LIN network. Software for the LIN low-level driver is available at www.ihr.de. |
| I_MEAS | Closed by default. If opened, the device is not supplied. This jumper is used to open the VSD line for measuring current flowing into the TLE987x device. |
| +5V_AUX_SEL | Open this jumper to disable the board's voltage regulator. |
| PORT 0/1/2 | These jumpers can be set in two positions to connect or disconnect LEDs, the potentiometer, the encoder, or the Hall sensor. |
GPIOs' Function by Jumper Position
| Port | Position 1 | Position 2 |
|---|
| P0.1 | LED 1 | Encoder |
| P0.2 | LED 2 | / |
| P0.3 | LED 3 | / |
| P0.4 | LED 8 | / |
| P1.0 | LED 5 | / |
| P1.1 | / | UART |
| P1.2 | LED 4 | UART |
| P1.3 | LED 6 | / |
| P1.4 | LED 7 | / |
| P2.0 | Hall A | / |
| P2.4 | POTI | / |
| P2.2 | Hall C | / |
| P2.3 | Hall B | Encoder |
| P2.5 | Encoder | / |
Communication Interfaces
LIN (via Banana Jack and uIO BSL)
The integrated LIN transceiver connects to a banana jack and the uIO BSL interface. For integration into a LIN network, the single-wire banana interface is sufficient. The BSL interface is used for programming the device via LIN. More information on the uIO interface can be found at www.infineon.com/uio or www.hitex.com/uio.
UART
A RS232 connector on the board enables serial communication.
Debugging
Debugging is possible via the SWD interface, with signals routed through the 10-pin SWD header. The pin configuration ensures that the XMC is held in reset when another debugger is physically connected, as DBPRE is implicitly connected to GND by connecting the external In-System Programmer (ISP).
Software Toolchain
Keil µVision 5
Keil® µVision5® is the recommended Integrated Software Development Environment (IDE). Infineon's Embedded Power family is supported. Installation information is available at www.keil.com.
Infineon ConfigWizard
Infineon provides the "ConfigWizard" tool to accelerate IC programming and code configuration within the IDE. It can be downloaded from the Infineon Toolbox, a central platform for all Infineon tools, available at www.infineon.com/toolbox.
TLE987x SDK
All Embedded Power products can be installed into Keil® µVision5® via the "Pack Installer." The "TLE98xx Series" can be found under the Infineon chapter in "All Devices." The .pack file includes various code examples to facilitate quick startup and software development.
Debug Connection Setup
For proper Flash and Debug Connection, install V5.10 (or newer) from www.segger.com/jlink-software.html. Keil® µVision5® must be configured in the IDE Menu "Options for Target." After connecting the USB-cable and powering up the EvalBoard, navigate to the "Debug" register-card, select "J-LINK / J-TRACE Cortex," and press "Settings."
The debug and flash configuration window shows settings for the J-Link/J-Trace Adapter, SW Device, Connect & Reset Options, Interface, and Download Options. If the board connects successfully, the Arm® IDCODE will be visible in the SW Device Window. If connection fails, "Connect & Reset Options" and "Port" windows should be checked.
Technical Data
| Parameter | Value |
|---|
| Voltage supply | max. 28 V |
| Motor current | max. 20 A |
| Pin ports | 5 V |
Optional Additional Placements
This section details optional components that can be added to the EvalBoard, with their values determined by the specific application. The diagram illustrates various component positions on the board, including snubber resistors and capacitors for MOSFET phases, and oscillator components.
| Component | Description |
|---|
| Q1 | External oscillator |
| C_XTAL1 | Oscillator capacitor 1 |
| C_XTAL2 | Oscillator capacitor 2 |
| R3105 | Resistance snubber high-side MOSFET phase 1 |
| C3104 | Capacitor snubber high-side MOSFET phase 1 |
| C3103 | Gate drain capacitor high-side MOSFET phase 1 |
| R3106 | Resistance snubber low-side MOSFET phase 1 |
| C3106 | Capacitor snubber low-side MOSFET phase 1 |
| C3105 | Gate drain capacitor low-side MOSFET phase 1 |
| R3205 | Resistance snubber high-side MOSFET phase 2 |
| C3204 | Capacitor snubber high-side MOSFET phase 2 |
| C3203 | Gate drain capacitor high-side MOSFET phase 2 |
| R3206 | Resistance snubber low-side MOSFET phase 2 |
| C3206 | Capacitor snubber low-side MOSFET phase 2 |
| C3205 | Gate drain capacitor low-side MOSFET phase 2 |
| R3305 | Resistance snubber high-side MOSFET phase 3 |
| C3304 | Capacitor snubber high-side MOSFET phase 3 |
| C3303 | Gate drain capacitor high-side MOSFET phase 3 |
| R3306 | Resistance snubber low-side MOSFET phase 3 |
| C3306 | Capacitor snubber low-side MOSFET phase 3 |
| C3305 | Gate drain capacitor low-side MOSFET phase 3 |
Schematics and Layout
This section of the user manual provides detailed schematics and layout diagrams for the TLE987x EvalBoard Rev1.2. These diagrams are essential for advanced users, engineers, and developers who need to understand the intricate electrical connections and physical arrangement of components on the board.
The schematics are presented across multiple sheets, illustrating various functional blocks:
- Sheet 1: Power Supply and Input Filter, GPIO Configurations, and Analog Inputs. This schematic details the power input, EMI filtering, reverse polarity protection, and the configuration of general-purpose input/output pins, along with analog input connections.
- Sheet 2: N-N-Bridge (Motor Power Stage). This sheet focuses on the three-phase motor power stage, including the MOSFET half-bridges, snubber circuits, and connections for the brushless motor.
- Sheet 3: External Oscillator, Reset Circuit, Test Points, Monitor Pin, TLE987x IC, Debug Interface (SWD), and VR's Blocking Capacitors. This comprehensive schematic covers the core TLE987x IC and its peripheral connections, including clock generation, reset logic, various test points for measurement, the monitor pin, the SWD debugging interface, and voltage regulator blocking capacitors.
- Sheet 4: LIN Internal and UART2. This schematic illustrates the Local Interconnect Network (LIN) interface and the Universal Asynchronous Receiver Transmitter (UART) connections, crucial for communication with the TLE987x device.
- Sheet 5: Encoder and Hall Sensor. This sheet details the connections and buffering for external sensors like encoders and Hall sensors, which are used for motor position feedback.
In addition to the schematics, the manual includes layout diagrams:
- Top Layer Layout: Shows the component placement and routing on the top side of the printed circuit board.
- Bottom Layer Layout: Displays the routing and any components on the bottom side of the printed circuit board.
These diagrams are critical for hardware debugging, custom modifications, and in-depth analysis of the EvalBoard's design. Due to their highly visual and technical nature, a textual description provides an overview of their content rather than a full transcription of every line and component, which would be impractical and less informative without the visual context.
Important Notice and Warnings
Important Notice: The information in this document is not a guarantee of conditions or characteristics ("Beschaffenheitsgarantie"). Infineon Technologies disclaims all warranties and liabilities, including non-infringement of intellectual property rights, regarding examples, hints, typical values, or product application information provided herein. Any information given is subject to the customer's compliance with obligations stated in this document and applicable legal requirements, norms, and standards concerning customer products and the use of Infineon Technologies products in customer applications.
The data is exclusively for technically trained staff. It is the customer's technical departments' responsibility to evaluate product suitability for the intended application and the completeness of the product information.
For further product, technology, delivery terms, conditions, and pricing information, contact your nearest Infineon Technologies office (www.infineon.com).
Warnings: Due to technical requirements, products may contain dangerous substances. Contact your nearest Infineon Technologies office for information on specific types. Infineon Technologies products must not be used in applications where product failure or consequences of use could reasonably result in personal injury, unless explicitly approved by Infineon Technologies in a written document signed by authorized representatives.
