October 2017
DocID031141 Rev 1
1/57
www.st.com
UM2301
User manual
Getting started with the Qi MP-A10 wireless charger Tx
evaluation board based on STWBC-EP
Introduction
The STEVAL-ISB044V1 wireless power transmitter evaluation board is based on the MP-A10 (CR419)
wireless power consortium (WPC) standard version 1.2.3 and supports FOD (foreign object detection).
The transmitter supports all Qi-compatible receivers (such as those in Qi- enabled mobile phones) as
well as resistive or capacitive modulation receivers.
In accordance with the Qi-MPA10 topology, the STEVAL-ISB044V1 supports a 5-13 V input voltage and
a half-bridge stage with bridge voltage/frequency control.
The evaluation board is based on the STWBC- EP controller which integrates all the functions required
to drive and monitor the transmitter, and controls the bridge voltage built in boost topology.
The STWBC-EP supports UART connectivity to a PC and, thanks to the STEVAL-ISB044V1 graphical
interface, monitors the transmitter behavior in real-time.
The STEVAL-ISB044V1 reference design provides a complete kit which includes the STWBC-EP,
firmware, layout based on cost- effective 2-layer PCB, graphical interfaces and tools.
Figure 1: STEVAL-ISB044V1 evaluation board
