September 2016

DocID029715 Rev 1

1/7

For further information contact your local STMicroelectronics sales

office

www.st.com

STEVAL-ISB039V1

1 W wireless charger system Tx/Rx based on STM32F0 and

STWLC03

Data brief

Features



STM32F0 for wireless power transmitter and

STWLC03 for wireless power receiver



1 W output power



WPC 1.1 based communication protocol



Main features of transmitter:



high efficiency N-channel Half Bridge

architecture with adaptive dead-time

control



synchronous digital demodulation of

power carrier, reduces BoM

considerably



standard or enhanced power

transmitter coil



coil temperature monitoring through

NTC



MCU firmware open for customization



built-in USB connector for input supply

voltage



Main features of receiver:



integrated high efficiency synchronous

rectifier



integrated 1 MHz programmable buck

converter with input current and input

voltage regulation loops



Simplified Li-Ion/Polymer charger

function



RoHS compliant

Description

The STEVAL-ISB039V1 is a wireless battery

charger evaluation kit based on the STM32F0

microcontroller for wireless battery charger

transmitters and the STWLC03 integrated

wireless power receiver.

The STEVAL-ISB039V1 solution is primarily

designed for small systems up to 1 W that can be

recharged easily, and can be adjusted for 2.5 W.

For the wireless power transmitter, the firmware

consists of a single STM32CubeMX platform-

independent library providing a simple and easily

customizable solution for the design of wireless

power transmitters with proprietary features.

The STWLC03 receiver can deliver the output

power in two modes: as a power supply with

configured output voltage or as a simple CC-CV

battery charger with configurable charging

current, charging voltage and termination current.

The I²C interface allows the customization of

parameters in the device and and the storage of

configurations in the embedded non-volatile

memory.