Infineon WLC MP-A11 User manual

Quick start guide
WLC MP-A11 15W wireless power transmitter reference board
REF_WLC_TX15W_C1
The WLC MP-A11 15W wireless power transmitter reference board (REF_WLC_TX15W_C1) demonstrates the functionality
of the Infineon WLC1115 wireless charging transmitter controller. It implements the Qi v1.3.2 specification and supports 15W
wireless charging using Qi Extended Power Profile (EPP). It also supports Qi’s Basic Power Profile (BPP) to support 5W wireless
charging with receivers which do not support EPP. This reference board is powered using a USB-C power adapter that is
compliant with USB PD 2.0 and higher specifications.
Tx interface surface
(MP-A11 coil)
WLC1115-68LQXQ controller
5-V LDO output
test point (VDDD)
Buck switching node
test point (SW1_O)
Buck regulator output
test point (VBRG_O)
Type-C voltage test point (USB-IN)
USB Type-C connector (J3)
Dual-color
status LED (LED1)
Tx coil and capacitor junction
test point (COIL_SNS)
Scaled coil voltage
(for Q-factor)
test point (Q_COMP)
Control ground test
point (GND)
ASK demod comparator
output test point
(OPAMP_CMP)
ASK demod gain stage
output test point (OPAM-
P_GAIN)

Published by
Infineon Technologies AG
81726 Munich, Germany
© 2022 Infineon Technologies AG.
All Rights Reserved.
Date: 05 / 2022
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Quick start guide
Before you start
1. Ensure that the following contents are available in the WLC MP-A11
15W wireless power transmitter reference board package:
• REF_WLC_TX15W_C1 reference board
• USB-C power adapter
• USB Type-C cable
• Qi-compatible receiver
• HPI dongle for programming/debugging
• USB Micro-B cable
• Jumper wires (x4)
2. (Optional) Get a Qi-compatible phone to check the wireless power
transfer functionality using a phone instead of the Qi-compatible
receiver.
Step 1: Hardware connection
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.
Step 2: Start wireless power transfer
1. Place the (phone or receiver) to be charged on the Tx interface
surface of the reference board. The status LED (LED1) glows blue
when charging is in progress.
2. Observe that the status LED turns OFF when thereceiver is
removed from the Tx interface surface or when the phone battery
is fully charged (100%).
3. Refer to the following table for system states and
corresponding status LED indications.
Next steps
1. Download the reference board release package from the WLC product page (www.infineon.com/wirelesscharging-ics)
2. See the user guide:
• To configure the parameters in firmware and download onto the reference board using
Wireless Charging Configuration Utility
• To learn about hardware design including usage of onboard test points
REF_WLC_TX15W_C1 board
From USB-C
power adapter
System state
Idle state
Status LED indication
Power delivery in progress
Power delivery/charge complete
Configuration of the power delivery parameters with receiver/phone in progress
No LED indication
Glows blue
No LED indication
Blinks blue
Glows red until FO is removed
Glows red until the fault is cleared
Blinks red
Foreign object (FO) such as a metal coin/clip detected
Fault during power transfer
Abrupt End of Power Transfer (EPT) initiated by the receiver
From USB-C
power adapter
Document Number: 002-34468 REV. *B
System states and Status LED indications
Powering the REF_WLC_TX15W_C1 board
Charging a mobile phone
From USB-C
power adapter
LED1
LED1