48 V MOTIX™ Gate Driver TLE9140EQW Evaluation Board
User Guide
Document Reference: Z8F80474925
About this document
Scope and purpose
This board is to be used during the design-in process for evaluating and measuring characteristic curves, and for checking datasheet specifications. This document describes how to use the TLE9140EQW evaluation board v2.0.
Intended audience
This document is intended for electronic engineers who want to evaluate a 48 V 3-phase gate driver.
Supplementary links and document references
| Reference | Description |
|---|---|
| TLE9140EQW datasheet | Datasheet contains reference information for the 48 V MOTIX™ 3-phase gate driver TLE9140EQW |
| TLE987x Product Page | All information of MOTIX™ MUC |
Figure 1: 48 V MOTIX™ gate driver TLE9140EQW evaluation board
[Description of the evaluation board hardware shown in Figure 1, including power connectors, interface headers, and main components like the TLE9140EQW and TLE987x.]
Important notice
Evaluation Boards and Reference Boards are products embedded on a printed circuit board (PCB) for demonstration and/or evaluation purposes. They are tested by Infineon Technologies only as described in this document and are not qualified for safety requirements, manufacturing, or operation over the entire temperature range or lifetime.
These boards are subject to functional testing only under typical load conditions and are not subject to the same procedures as regular products regarding RMA, PCN, or PD. They are not commercialized products and are solely intended for evaluation and testing purposes, not for reliability testing or production. They may not comply with CE or similar standards or other country-specific requirements.
The information provided is for qualified technical staff for laboratory usage. Customers are responsible for evaluating suitability for their applications, ensuring completeness and correctness of information, and preventing harm to persons or property.
Infineon Technologies disclaims all warranties, express or implied. Infineon Technologies shall not be responsible for any damages resulting from the use of these boards or information. Customers must defend and indemnify Infineon Technologies against any claims arising from such use.
Infineon Technologies reserves the right to modify this document and its information at any time without notice.
Safety precautions
Please note the following warnings regarding hazards associated with development systems:
| Caution | Description |
|---|---|
| ⚠️ | The heat sink and device surfaces may become hot during testing. Take necessary precautions while handling the board. Failure to comply may cause injury. |
| ⚠️ | Only personnel familiar with the drive, power electronics, and associated machinery should plan, install, commission, and service the system. Failure to comply may result in personal injury and/or equipment damage. |
| ⚠️ | The board contains parts sensitive to electrostatic discharge (ESD). Electrostatic control precautions are required. Component damage may result if ESD procedures are not followed. Refer to applicable ESD protection guidelines if unfamiliar. |
| ⚠️ | Incorrect application or installation can lead to component damage or reduced product lifetime. Wiring or application errors (e.g., undersizing the motor, incorrect AC supply, excessive ambient temperatures) may result in system malfunction. |
Warnings
Technical requirements may mean products contain dangerous substances. Contact Infineon Technologies for details.
Infineon Technologies' products may not be used in applications where failure could reasonably be expected to result in personal injury, unless explicitly approved in writing by Infineon Technologies.
Evaluation board introduction
Concept of the evaluation board
This evaluation board supports evaluating the MOTIX™ 48 V gate driver TLE9140EQW in two scenarios: 1. Controlled by the MOTIX™ MCU device TLE987x. 2. Evaluated with the config wizard in the Infineon toolbox.
It includes the TLE9140EQW, TLE987x, and three half-bridges for BLDC motor drive. Jumper X35 allows connection to a uIO-Stick or TLE987x. All device pins are connected to pin headers for easy measurement.
Note: 12 V GND is not connected to 48 V GND due to isolation requirements. They must be connected externally for proper operation.
Figure 2: Concept of the evaluation board
[Description of the block diagram showing the TLE9140EQW, TLE987x, power stage, control logic, and interfaces.]
Key features
- TLE9140EQW controllable by on-board MOTIX™ MUC or uIO-Stick (config wizard) with additional inputs.
- Drives 24 V/48 V DC or BLDC motors (48 V supply can be replaced by 24 V supply).
- High voltage capability: robustness up to 110 V.
- Capable of high frequency PWM (e.g., 20 kHz).
- Adjustable charge and discharge currents for optimized EMC performance.
- High voltage compatible inputs.
- Active LS freewheeling during VSM overvoltage.
- SPI communication.
- Protections and diagnostics (overtemperature, overcurrent, undervoltage, watchdog, off-state diagnostic).
Application diagram of BLDC motor control
The application block diagram (Figure 3) shows input pins of TLE9140EQW connected to the TLE987x power stage outputs, and SPI ports connected to TLE987x GPIO pins.
Figure 3: Application diagram of BLDC motor control with the evaluation board
[Description of the block diagram illustrating the interaction between a microcontroller/MCU, the TLE9140EQW, and the 3-phase bridge driving a motor.]
Evaluation board description
Discrete components are populated on board for motor control design evaluation and can be adapted for specific applications. Figures 4 and 5 show interconnects, jumper settings, test points, and non-populated components.
Interconnects
Figure 4 illustrates the interconnects of the evaluation board.
Figure 4: Interconnects of the evaluation board
[Description of the board layout highlighting connectors for power supply (12V/48V), motor phases, LIN, and debug interfaces.]
Power supply
Connectors X26 and X28 are for 48 V/24 V GND and battery. Connectors X27 and X29 are for 12 V GND and battery.
Motor connectors
Connectors X26 and X28 are for 48 V/24 V GND and battery.
Hall sensor interface
Connector X23 is the hall sensor interface. Table 3 details its pin assignments (GND, HC, HB, HA) and voltage (5V).
| Pin | Signal | Voltage |
|---|---|---|
| GND | n.c. | 5V |
| HC | HB | HA |
Angle sensor interface
Connector X15 is the analog angle sensor interface. Table 4 details its pin assignments (5V, 3P, 4P, 3N, 4N, GND).
| Pin | Signal | |
|---|---|---|
| 5V | 3P | 3N |
| 4P | 4N | GND |
LIN connector and the uIO-Stick interface for LIN
Connector X8 is the LIN connector. Connector X25 is for additional LIN communication hardware. Table 5 lists the LIN connector and uIO-Stick interface pin assignments.
| Pin | Signal | Pin | Signal | Pin | Signal | Pin | Signal | Pin | Signal | Pin | Signal | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 (12V GND) | 4 | 6 (12V VBAT) | 8 | 10 | 12 | 14 | 16 | 1 | 3 | 5 (BUS) | 7 | 9 | 11 | 13 | 15 |
Jumpers to select different use cases
Jumper X35 selects use cases: "MOTIX™ MUC + TLE9140EQW" (connect TLE9140EQW and TLE987x) or "Evaluate TLE9140EQW with config wizard" (connect uIO-Stick and TLE9140EQW). Table 6 details jumper settings.
| Use Case | P15 | P9 | P13 | P11 | P14 | P4 |
|---|---|---|---|---|---|---|
| uIO-Stick | MTSR | CSN | MRST | SCLK | EN | VDD |
| TLE9140EQW | P0.2 | P1.1 | P0.4 | P0.3 | P1.2 | VDDP |
| TLE987x |
Interface for debugger
The debugger (J-Link) connects to X10 for code debugging. Table 7 shows the interface connections.
| Pin | Signal | Pin | Signal | Pin | Signal | Pin | Signal | ||
|---|---|---|---|---|---|---|---|---|---|
| 2(SWDIO) | 4(SWCLK) | 6 | 8 | 1(5V) | 3(GND) | 5(GND) | 7 | 10(RESET) | 9(GND) |
Jumper settings
Table 8 summarizes flexible jumper configurations:
| Jumper | Setting |
|---|---|
| X11 | Enable or disable RESET button |
| X12 | Enable or disable MON button |
| X16 | Select applications with hall sensor or angle sensor |
| X21 | Enable or disable potentiometer |
| X35 | Select TLE987X or uIO-Stick as master of SSC |
For this board, pins P2.0, P2.2, P2.3, P2.4, and P2.5 in X16 are used for different application configurations. PHx denotes phase voltage from BEMF, Hx denotes hall sensor connector, and 4N/4P are angle sensor connectors. Pin definitions are in Table 9.
| Pin | PH3 | PH2 | PH1 | 3P | 3N |
|---|---|---|---|---|---|
| P2.5 | P2.4 | P2.3 | P2.2 | P2.0 | |
| 4N | 4P | HB | HC | HA |
Figure 5: Jumpers on the evaluation board
[Description of the board layout highlighting jumper locations like X11, X12, X16, X21, X35.]
Test points
The TLE9140EQW drives 3-phase half-bridges. All TLE9140EQW and TLE987X pins are accessible via headers for testing. Test points for 3-phases are available for measurement.
Test points OP_P and OP_N measure voltage drops across the shunt resistance. Test points I_VDD and I_VSM measure voltage drops across a 5 mΩ resistance in the VDD and 48 V supply lines, allowing calculation of current and power consumption. Various test points for 48 V supply, 48 V GND, and 12 V supply are also available.
Figure 6: Test points on board
[Description of the board layout highlighting test point locations for current sense, voltage measurement, and supply rails.]
Component list
The evaluation board supports two supply concepts: 1. Voltage isolation between 12 V and 48 V domains using diodes (D13, D14). 2. 12 V supply generation from 48 V battery using a source follower (Q7, C62, C63, R47, D11). Components for the diode concept are populated; source follower components are optional.
TLE9140EQW features a current source gate driver. Sequencer allows selecting different charging/discharging currents for EMC optimization. Soldering points for snubbers, gate-drain, and gate-source capacitance are available.
Optional components
Table 10 lists values for optional components (e.g., MOSFETs, diodes, resistors, capacitors for snubbers and gate control).
| Designator | Description |
|---|---|
| Q7 | N-channel MOSFET |
| D12 | Anti-reverse diode |
| D11 | Zener diode to control Q7 with R47 |
| R47 | Resistor to control Q7 with D11 |
| R1 | Resistance snubber high-side MOSFET phase 1 |
| C14 | Capacitor snubber high-side MOSFET phase 1 |
| C10 | Gate-drain capacitor high-side MOSFET phase 1 |
| C13 | Gate-source capacitor high-side MOSFET phase 1 |
| R13 | Resistance snubber low-side MOSFET phase 1 |
(Table 10 continues with more components for phases 1, 2, and 3.)
Bill of material
Table 11 provides the bill of material, listing component designators, values, descriptions, footprints, and manufacturer order numbers.
| Designator | Value | Description | Footprint | Manufacturer Order Number |
|---|---|---|---|---|
| C1, C4, C7 | 100nF | Surface Mount Ceramic Capacitor Automotive Grade | CAPC3225X127N | 12101C104K4Z2A |
| C2, C5, C8 | 2.2uF | Surface Mount Ceramic Capacitor Automotive Grade | CAPC3225X127N | 12101C104K4Z2A |
| C3, C6, C9 | 560uF | Long-life grade capacitors, Low impedance at high frequency | CAPPRD750W80D1 825H3700B | B41858C9567M000 |
| C10, C11, C12, C19, C20, C21 | 33pF | Chip Monolithic Ceramic Capacitor | CAPC2013X100N | GRM21A5C2D330J W01 |
| C13, C15, C17, C22, C24, C26 | 330pF | Chip Monolithic Ceramic Capacitor | CAPC2013X70N | GRM2165C2A331J A01 |
| C14, C16, C18, C23, C25, C27 | 4.7nF | Farnell: 08051C473KAT2A 100V (optional) | CAPC2013X94N | 08055F472KAT2A |
| C28, C29, C64 | 1nF | Chip Monolithic Ceramic Capacitor | CAPC2013X70N-0 | GCM216R71H102K A37 |
| C30, C31 | 100nF | Surface Mount Multilayer Ceramic Chip Capacitor | CAPC1608X87N | C0603C104J3RAC |
(Table 11 continues with many more components.)
Schematics
The document includes detailed schematics for the evaluation board:
- Figure 7: Schematic 1/8 (Power Supply, Debug Interface, LIN, TLE9879QXA40)
- Figure 8: Schematic 2/8 (12V/48V Domain Power Supply, Source Follower)
- Figure 9: Schematic 3/8 (TLE9879QXA40 connections, Hall/Angle Sensor interfaces)
- Figure 10: Schematic 4/8 (TLE9140EQW core connections, gate driver outputs)
- Figure 11: Schematic 5/8 (3-phase bridge drivers, output stage)
- Figure 12: Schematic 6/8 (LIN Transceiver, isolation)
- Figure 13: Schematic 7/8 (Debug Interface, uIO-Stick connections)
- Figure 14: Schematic 8/8 (Reset and MON circuits)
Layout
Figure 15 shows the top layer layout of the evaluation board, illustrating the physical placement of components and connectors.
Figure 15: Top layer
[Description of the PCB layout, highlighting the main ICs, power components, connectors, and general layout structure.]
Getting started
Target applications
The TLE9140EQW is targeted for 48 V/24 V DC and BLDC motor control applications. The evaluation board provides the necessary external components for evaluation.
Evaluation setups
Two evaluation setups are supported:
- TLE9140EQW + TLE987x: Uses example code (TLE987x_TLE9140_FOC_App) for evaluation.
- TLE9140EQW + uIO-Stick + input generator: Uses the config wizard for easy evaluation.
Getting started: TLE9140EQW driven by TLE987x
This setup uses the TLE987x FOC sensorless example with TLE9140, integrated into a Keil µVision 5 project. It supports Sensorless FOC and V to F control modes.
Hardware setup
- 48 V bipolar (4Q) power supply with adjustable output voltage.
- Evaluation board with TLE9140EQW and TLE987x connected to power supply and PC via XMC™ Link (Segger J-Link).
- Evalboard V2.0 with TLE987x.
- Specific hardware settings: Jumpers X35 for SPI communication between TLE987x and TLE9140EQW, and to provide VDD for TLE9140EQW. Jumper X12 (MON of TLE987x) to 12 V on Evalboard V2.0. Connect 12 V and 48 V ground lines externally.
Software preparation
Required tools: Arm® Keil® µVision® 5 IDE, Infineon Embedded Power SDK (LLD), Segger J-Link Driver, Infineon Config Wizard, Micro Inspector Pro.
Getting started steps
- Load FOC.uvprojx project in Keil µVision 5.
- Choose hardware target device.
- Configure motor parameters in Config Wizard.
- Build the Keil µVision 5 project.
- Configure target connection using XMC™ Link.
- Download compiled code.
- Launch Micro Inspector Pro, load workspace, and run.
- Enable power stage and control.
- Set reference motor speed.
Getting started: TLE9140EQW driven by config wizard with a pulse generator
This setup uses the uIO-Stick as the interface between PC and the evaluation board, emulating SPI communication.
Figure 16: TLE9140EQW driven by config wizard with a pulse generator
[Description of the block diagram showing PC, uIO-Stick, evaluation board, and pulse generator connection.]
Hardware setup
- 48 V bipolar (4Q) power supply.
- Evaluation board with TLE9140EQW connected to power supply and PC via uIO-Stick.
- Evalboard V2.0 with TLE9140EQW.
- Specific hardware settings: Jumpers X35 for SPI communication between uIO-Stick and TLE9140EQW, and to provide VDD for TLE9140EQW. Inputs IHx and ILx connected to pulse generator output.
Software preparation
Install Config Wizard for MOTIX™ BLDC Motor Gate Driver ICs.
Getting started steps
- Set jumper for test mode: SPI connection between TLE9140EQW and uIO-Stick.
- Connect pulse generator to TLE9140EQW inputs.
- Connect motor or load.
- Connect uIO-Stick to evaluation board and PC.
- Connect 48 V or 24 V power supply.
- Turn on power supply.
- Start TLE9140EQW Config Wizard.
- To operate half-bridges: Enable charge pump, provide input signals, configure MOSFET timings/currents, enable gate driver, update configuration.
Refer to the "Config Wizard Tool for MOTIX™ BLDC Motor Gate Driver IC for TLE9140EQW" document for more details.
Start your evaluation
With the basic setup complete, investigate the device under various conditions: supply voltages, PWM frequency, duty cycle, temperatures, and motor loads.
For setup questions, contact your IFX sales representative or IFX technical support.
Revision history
| Document Version | Date of Release | Description of Changes |
|---|---|---|
| Rev. 5.0 | 2024-08-23 | Add of bill of material, Add of schematic and layout |
| Rev. 4.0 | 2023-12-13 | Correct typos (refer to evaluation board v2.0) |
| Rev. 3.0 | 2023-08-01 | Add config wizard chapter (refer to evaluation board v2.0) |
| Rev. 2.0 | 2020-08-01 | Refer to evaluation board v2.0 |
| Rev. 1.0 | 2019-11-01 | Initial release (refer to evaluation board v1.0) |
