Infineon WLC MP-A2 50-W User manual

Quick start guide
REF_WLC_TX50W_N1
WLC MP-A2 50-W wireless power transmitter reference board
The WLC MP-A2 50-W wireless power transmitter reference board (REF_WLC_TX50W_N1) demonstrates the
functionality of Infineon’s WLC1150 wireless charging transmitter controller. It supports 50-W wireless
charging using Infineon’s High Power Proprietary protocol. It also implements the Qi 1.3.2 specification
and supports 15-W wireless charging using Qi Extended Power Profile (EPP). For receivers that do not support EPP,
it supports 5-W charging using Qi Basic Power Profile (BPP).
This reference board can be powered using a USB Type-C power adapter compliant with USB PD 3.1 Programmable
Power Supply (PPS) specification (factory default mode for REF_WLC_TX50W_N1) or using a DC supply.
REF_WLC_TX50W_N1 board
Kit contents
1. REF_WLC_TX50W_N1 reference board
2. 65-W PPS-compatible USB-C PD power adapter
3. USB Type-C cable
4. Infineon 50-W Rx board (REF_WLC_RX50W_N1)
5. HPI dongle (HPI_DONGLE) for programming/debugging
6. USB Micro-B cable for programming/debugging
7. Jumper wires (x4)
8. Quick start guide (this document)

USB Type-C connector (J1)
DC input
connector (J3)
Dual-color status LED (LED1)
Power supply
mode selection
jumper (J4)
WLC1150-68LQXQ
controller (U2)
Tx interface
surface
(MP-A2 coil)
REF_WLC_TX50W_N1 board interfaces
Quick start guide

Quick start guide
Before you start
1. Ensure that a jumper shunt is placed at
position 1 and 2 of the power mode selection
jumper (J4) to power the board using USB-C PD adapter.
2. (Optional) Get a Qi-compatible phone/receiver to
test the wireless power transfer functionality
using the Qi protocol.
Step 1: Hardware connection
1. Connect the USB-C power adapter to the USB
Type-C connector (J1) of the Tx reference board.
2. Confirm that the status LED (LED1) blinks five times
in blue and red. Now, the board is ready for use.
Step 2: Start wireless power transfer
using high power proprietary protocol
1. Place the Infineon 50-W Rx board on the Tx
interface surface of the REF_WLC_TX50W_N1
board. Attach a load rated for 50-W to the
terminals of the Rx board. Ensure that the load
is in OFF state. The status LED (LED1) on the
REF_WLC_TX50W_N1 board glows blue when
power transfer is in progress.
2. Increase the load in maximum step of 20-W to
exceed 40-W. Observe that the fan located on the
bottom side of the REF_WLC_TX50W_N1 board
turns on when power transferred exceeds 40-W or
when the Tx interface surface temperature sensed
by the thermistor on the REF_WLC_TX50W_N1
board exceeds 45°C.
Note: Avoid short circuiting the output load
terminals of the Rx board. This may result in
damage to the Rx board.
3. During the power transfer the load on the Rx board
can be varied up to 50-W. However the maximum
load step size during application/removal should
not exceed 20-W.
4. Observe that the status LED turns OFF when the
receiver is removed or when the receiver
communicates End of Power Transfer (EPT).
REF_WLC_TX50W_N1 board
Power mode selection jumper (J4)
Powering the REF_WLC_TX50W_N1 board
Wireless power transfer using high power proprietary protocol
-Load
+
From USB-C power adapter
From USB-C
power adapter
Infineon 50-W
Rx board
LED1

Published by
Infineon Technologies AG
81726 Munich, Germany
© 2023 Infineon Technologies AG.
All Rights Reserved.
Date: 02 / 2023
Additional information
For further information on technologies, our products, the
application of our products, delivery terms and conditions
and/or prices, please contact your nearest Infineon Technologies
office (www.infineon.com).
Warnings
Due to technical requirements, our products may contain
dangerous substances. For information on the types in question,
please contact your nearest Infineon Technologies office.
Except as otherwise explicitly approved by us in a written
document signed by authorized representatives of Infineon
Technologies, our products may not be used in any life-
endangering applications, including but not limited to medical,
nuclear, military, life-critical or any other applications where a
failure of the product or any consequences of the use thereof
can result in personal injury.
www.infineon.com
Quick start guide
System state
Idle state
Status LED indication
Configuration of power transfer parameters in progress
Power transfer/charging is in progress
Power transfer/charge complete
Foreign object (FO) such as a metal coin/clip detected
No LED indication
Glows blue
No LED indication
Blinks blue
Glows red until FO is removed
Blinks red until the fault is cleared
Blinks red
Fault during power transfer
Abrupt End of Power Transfer (EPT)
initiated by the receiver
Document Number: 002-36281 REV. *B
System states and Status LED indications
See the following table for system states and corresponding status LED indications of the
REF_WLC_TX50W_N1 reference board
Next steps
1. Download the reference board release package from WLC product page (www.infineon.com/wirelesscharging-ics)
2. See the user guide to learn:
• How to configure the firmware parameters and download them onto the Tx reference board using Wireless
Charging Configuration Utility and HPI dongle
• How to power the board using DC supply
• About hardware design of the WLC1150-based REF_WLC_TX50W_N1 reference board
• How to charge a Qi compatible phone/receiver
Please note!
This document is for information purposes only and any
information given herein shall in no event be regarded as a
warranty, guarantee or description of any functionality,
conditions and/or quality of our products or any suitability
for a particular purpose. With regard to the technical
specifications of our products, we kindly ask you to refer
to the relevant product data sheets provided by us.
Our customers and their technical departments are
required to evaluate the suitability of our products
for the intended application.
We reserve the right to change this document and/or
the information given herein at any time.