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User Guide 

Please read the Important Notice and Warnings at the end of this document

 

002-35126 Rev. ** 

www.infineon.com

 

page 1 of 25 

2022-05-10 

 
 

 

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 

WLC1115 MP-A11 15-W wireless power transmitter reference solution 

(

REF_WLC_TX15W_C1

)

. It is a Qi 1.3.2 certified solution (Qi Id: 

12383

and supports up to 15-W charging. The 

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

 

 Provides an overview of the Wireless Charging Configuration Utility software  

 

WLC1115 wireless power transmitter system design

 

 Explains the reference board architecture and 

system design details 

 

Reference board operation 

 Describes operating the reference board as a wireless power transmitter, 

configuring the system-level parameters, downloading the firmware, and capturing the debug log.  

Intended audience 

The document is intended for the users of 

WLC1115 15-W wireless power transmitter reference board 

(

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 

Summary of Contents for WLC1115

Page 1: ...rtified 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...

Page 2: ...ity 6 3 WLC1115 wireless power transmitter system design 7 3 1 REF_WLC_TX15W_C1 MP A11 15W power transmitter board 8 3 1 1 Board connectors 10 3 1 2 Test points 11 4 Reference board operation 12 4 1 W...

Page 3: ...to devices subjected to high energy discharges Proper ESD precautions are recommended to avoid performance degradation or loss of functionality Store unused REF_WLC_TX15W_C1 reference boards in the pr...

Page 4: ...wireless transmitter applications WLC1115 supports a wide input voltage range and offers many programmable features for creating distinct wireless transmitter solutions Visit the product webpage 1 to...

Page 5: ...2 05 10 WLC1115 MP A11 15 W wireless power transmitter REF_WLC_TX15W_C1 user guide Introduction 1 3 Board details The key interfaces of the WLC1115 15W Tx reference board are marked in Figure 1 Figure...

Page 6: ...gh the process of configuring and programming the WLC11115 device The utility allows users to 1 To read the firmware configuration data from the REF_WLC_TX15W_C1 reference board and modify it or creat...

Page 7: ...s is shown in Figure 3 The recommended DC input source configurations are listed in Table 1 Figure 3 WLC1115 kit interconnection Table 1 Input source for the EVK DC input source REF_WLC_TX15W_C1 requi...

Page 8: ...ed gate drive for full bridge inverter operating at 127 7 kHz switching frequency 8 MP A11 coil with variable Inverter input voltage control 9 Peak efficiency of greater than 83 at full load with WRM4...

Page 9: ...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 feat...

Page 10: ...es For more information see section 4 2 J6 Power SMD connector option for DC input through a variable DC power supply J1 Signal Debug serial port Connect to an HPI dongle which is provided as part of...

Page 11: ...point PWM_OUT Signal Inverter Inverter stage PWM signal HG1_1 Signal Inverter Inverter bank 1 high side MOSFET M15 gate signal LG1_1 Signal Inverter Inverter bank 1 low side MOSFET M16 gate signal HG2...

Page 12: ...ection 1 Connect the USB C power adapter to the USB Type C connector J3 of the reference board 2 Confirm that the status LED LED1 blinks five times in blue and red Now the board is ready for use Figur...

Page 13: ...board Table 5 Troubleshooting of the WLC 15W Tx reference board operation Issue Possible cause Fix 1 The phone is not charging when placed on the interface surface of the WLC reference board The phon...

Page 14: ...rface of the WLC1115 controller Figure 9 USB CC communication based set up Execute the following procedure to create the set up 1 Connect the HPI dongle to the reference board using the USB Type C cab...

Page 15: ...cessed from the Help menu of the utility 4 3 Capturing debug logs on the WLC reference board This section explains the procedure to capture the debug logs sent on the serial port of the REF_WLC_TX15W_...

Page 16: ...e enabled by configuring the following parameters in the transmitter Profile page in the Wireless Charging Configuration Utility see Figure 12 Enable Critical log enable Enable Message log enable Set...

Page 17: ...Dismantle the hardware set up 3 Debug log capture set up a Do the following connections using jumper wires to establish a serial connection between the REF_WLC_TX15W_C1 board and the HPI dongle Connec...

Page 18: ...rm on the Windows PC and select the virtual serial port listed on the Tera Term tool b Set the baud rate to 1000000 Set the remaining settings as default as shown in Figure 16 Figure 16 Tera Term sett...

Page 19: ...e the log into a file from Tera Term e Contact Infineon technical support with the captured log files if additional support is required 5 Disable debug log in the firmware Revert these changes in firm...

Page 20: ...nsure that the following are available A Windows based PC to run the Wireless Charging Configuration Utility The operating system of Windows 10 or higher is required The positive terminal of the DC po...

Page 21: ...Confirm that the reference board is selected under the Device Selection tab as shown in Figure 19 Figure 19 Selecting WLC1115 device in Wireless Charging Configuration Utility d Go to Tools Firmware U...

Page 22: ...test the wireless charging functionality using a Qi compatible phone receiver as shown in Figure 22 The status LED indications for various system states listed in Table 4 are also applicable for the D...

Page 23: ...35126 Rev 2022 05 10 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...

Page 24: ...r Guide 24 of 25 002 35126 Rev 2022 05 10 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 relea...

Page 25: ...d any applicable legal requirements norms and standards concerning customer s products and any use of the product of Infineon Technologies in customer s applications The data contained in this documen...

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