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WLC1115 MP-A11 15-W wireless power
transmitter (REF_WLC_TX15W_C1) user guide

About this document

Scope and purpose
This document is a user guide for the
(
). It is a Qi 1.3.2 certified solution (Qi Id: 12383) and supports up to 15-W charging. The
REF_WLC_TX15W_C1
reference board demonstrates the capabilities and features of the Infineon WLC1115 wireless charging
transmitter controller. WLC1115 is a highly integrated wireless power transmitter with an integrated USB Type-
C Power Delivery (PD) controller, certified for USB PD 3.1 specification (USB-IF TID: 7531).
You can see the relevant sections based on your requirement:
Introduction
– Provides basic information on the reference board, including details about the interfaces
WLC1115 software tool
WLC1115 wireless power transmitter system design
system design details
Reference board operation
configuring the system-level parameters, downloading the firmware, and capturing the debug log.
Intended audience
The document is intended for the users of
(REF_WLC_TX15W_C1).
Related documents
[1] Product webpage:
Wireless charging ICs
[2] Reference board webpage
REF_WLC_TX15W_C1 wireless charging (WLC) MP A11 power transmitter
User Guide
www.infineon.com
WLC1115 MP-A11 15-W wireless power transmitter reference solution
– Provides an overview of the Wireless Charging Configuration Utility software
– Describes operating the reference board as a wireless power transmitter,
WLC1115 15-W wireless power transmitter reference board
Please read the Important Notice and Warnings at the end of this document
– Explains the reference board architecture and
page 1 of 25
002-35126 Rev. **
2022-05-10

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Summary of Contents for Infineon WLC1115

  • Page 1: About This Document

    Infineon WLC1115 wireless charging transmitter controller. WLC1115 is a highly integrated wireless power transmitter with an integrated USB Type- C Power Delivery (PD) controller, certified for USB PD 3.1 specification (USB-IF TID: 7531).
  • Page 2: Table Of Contents

    Downloading the kit documents and hardware design files ..............4 Board details ............................5 WLC1115 software tool ......................6 Wireless Charging Configuration Utility ....................6 WLC1115 wireless power transmitter system design ..............7 REF_WLC_TX15W_C1 MP A11 15W power transmitter board ..............8 3.1.1 Board connectors ..........................10 3.1.2...
  • Page 3: Safety Information

    General safety instructions ESD protection ESD can damage boards and associated components. Infineon recommends that the user perform procedures only at an ESD workstation. If an ESD workstation is unavailable, use appropriate ESD protection by wearing an antistatic wrist strap attached to the chassis ground (any unpainted metal surface) on the board when handling parts.
  • Page 4: Introduction

    WPC receivers. For the MP-A11 transmitter coil, variable inverter input voltage control is used by the WLC1115. WLC1115 has integrated gate drivers for the buck and inverter power supplies necessary for wireless transmitter applications. WLC1115 supports a wide input voltage range and offers many programmable features for creating distinct wireless transmitter solutions.
  • Page 5: Board Details

    WLC1115 MP-A11 15-W wireless power transmitter (REF_WLC_TX15W_C1) user guide Introduction Board details The key interfaces of the WLC1115 15W Tx reference board are marked in Figure board interfaces REF_WLC_TX15W_C1 Figure 1 User Guide 5 of 25 002-35126 Rev. ** 2022-05-10...
  • Page 6: Wlc1115 Software Tool

    WLC1115 software tool Wireless Charging Configuration Utility The WLC1115 controller is a fully programmable controller allowing users to configure the firmware parameters and store them in its internal flash memory. The Wireless Charging Configuration Utility is a Microsoft Windows application developed by Infineon to guide the WLC11115 user through the process of configuring and programming the WLC11115 device.
  • Page 7: Wlc1115 Wireless Power Transmitter System Design

    WLC1115 wireless power transmitter system design WLC1115 wireless power transmitter system design The WLC1115 wireless transmitter unit supports wireless charging of Qi compliant wireless receivers and phones. The transmitter supports BPP and EPP types wireless receivers and complies with the 1.3.2 version of the Qi specficiation.
  • Page 8: Ref_Wlc_Tx15W_C1 Mp A11 15W Power Transmitter Board

    (J3). There is also an option for a DC power supply connection (J6). See Appendix A to understand the procedure for powering the reference board using a DC supply. Contact Infineon Technical support enable the operation of the reference board using QC/AFC adaptor 2.
  • Page 9 MP A11 transmitter coil assembly Figure 5 5. WLC1115-68LQXQ – The WLC1115 is a single controller unit to control the transmitter coil and USB-PD interface. The WLC1115 simplifies the transmitter board architecture with inbuilt gate drivers for buck and inverter stage, inbuilt LDO for logic and core power, and more features. With an on-chip 32-bit Arm® Cortex®-...
  • Page 10: Board Connectors

    WLC1115 MP-A11 15-W wireless power transmitter (REF_WLC_TX15W_C1) user guide WLC1115 wireless power transmitter system design 3.1.1 Board connectors The transmitter board has power and signal connectors for operation and monitoring the wireless power transfer. The function of each connector is listed in...
  • Page 11: Test Points

    CLK_IN Signal – WLC1115 Clock signal from externa oscillator (Applicable for operation with external oscillator only) Q_COMP Signal – WLC1115 Signal used by WLC1115 for Q-factor estimation GND1, GND2 Power Power side ground points Signal Control side ground point Note: For more information, see the reference board’s schematic.
  • Page 12: Reference Board Operation

    (REF_WLC_TX15W_C1) user guide Reference board operation Reference board operation This section explains the wireless charging operation, configuring or updating the firmware parameters, and programming the updated configuration data to the WLC1115-68LQXQ IC. Wireless charging operation 4.1.1 Hardware connection 1. Connect the USB-C power adapter to the USB Type-C connector (J3) of the reference board 2.
  • Page 13 USB REF_WLC_TX15W_C1 PD based power input. However, the reference board can be powered using a DC supply, requiring a different firmware. See Appendix A to understand the procedure for powering the WLC1115 referecne board using DC input. User Guide 13 of 25 002-35126 Rev.
  • Page 14: Configuring And Downloading The Firmware

    2. Connect the HPI dongle to the PC using a USB micro-B cable 3. The Power LED (LED1) on HPI Dongle glows blue, and the status LED (LED1) on the WLC1115 reference board blinks in blue and red five times 4.
  • Page 15: Capturing Debug Logs On The Wlc Reference Board

    Reference board operation Execute the following procedure to create the set-up 1. Establish an I2C connection between the WLC1115 reference board and HPI dongle by connecting the two jumper wires Connect a jumper wire between SCL pin of HPI dongle (pin no. 5 of J2 header) and HPI_I2C_SCL pin of WLC1115 reference board (pin no.
  • Page 16 WLC1115 MP-A11 15-W wireless power transmitter (REF_WLC_TX15W_C1) user guide Reference board operation Selective device in Wireless Charging Configuration Utility Figure 11 Click Tools > Read from Device or select the Read from Device option from the home panel. This enables the user to read the configuration from the device The debug log can be enabled by configuring the following parameters in the transmitter “Profile”...
  • Page 17 WLC1115 MP-A11 15-W wireless power transmitter (REF_WLC_TX15W_C1) user guide Reference board operation Device configuration dialog Figure 13 Wait until the updated configuration file gets downloaded, as shown in Figure 14 Successful download of configuration file Figure 14 Dismantle the hardware set-up 3.
  • Page 18 WLC1115 MP-A11 15-W wireless power transmitter (REF_WLC_TX15W_C1) user guide Reference board operation Set-up for capturing debug log Figure 15 4. Capture debug logs Open the Tera Term on the Windows PC and select the virtual serial port listed on the Tera Term tool Set the baud rate to 1000000.
  • Page 19 WLC1115 MP-A11 15-W wireless power transmitter (REF_WLC_TX15W_C1) user guide Reference board operation Debug log output Figure 17 Save the log into a file from Tera Term Contact Infineon technical support with the captured log files if additional support is required 5.
  • Page 20: Appendix A: Enabling Dc Input Power Based Wireless Charging Operation On The Ref_Wlc_Tx15W_C1 Reference Board

    WLC1115 MP-A11 15-W wireless power transmitter (REF_WLC_TX15W_C1) user guide Appendix A: Enabling DC input power based wireless charging operation on the REF_WLC_TX15W_C1 reference board Appendix A: Enabling DC input power based wireless charging operation on the REF_WLC_TX15W_C1 reference board This section explains the procedure to enable DC input power-based wireless charging operation on the reference board.
  • Page 21 Confirm that the reference board is selected under the Device Selection tab, as shown in Figure 19 Selecting WLC1115 device in Wireless Charging Configuration Utility Figure 19 Go to Tools > Firmware Update or select the Firmware Update option from the Home panel. Specify the...
  • Page 22 WLC1115 MP-A11 15-W wireless power transmitter (REF_WLC_TX15W_C1) user guide Appendix A: Enabling DC input power based wireless charging operation on the REF_WLC_TX15W_C1 reference board Downloading the firmware supporting DC input-based operation Figure 21 Detach the board from the programming setup...
  • Page 23: Technical Support

    WLC1115 MP-A11 15-W wireless power transmitter (REF_WLC_TX15W_C1) user guide Technical support Technical support If you have any questions, create a support request on the Infineon Technical support page. User Guide 23 of 25 002-35126 Rev. ** 2022-05-10...
  • Page 24: Revision History

    WLC1115 MP-A11 15-W wireless power transmitter (REF_WLC_TX15W_C1) user guide Revision history Revision history Date Version Description 2022-05-10 Initial release. User Guide 24 of 25 002-35126 Rev. ** 2022-05-10...
  • Page 25 With respect to any examples, hints or any typical 81726 München, Germany values stated herein and/or any information WARNINGS regarding the application of the product, Infineon Technologies hereby disclaims any and all Due to technical requirements products may contain warranties and liabilities of any kind, including dangerous substances.

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