STEVAL-ISB039V1:1 W wireless charger system Tx/Rx based on STM32F0 and STWLC03

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.

Key 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
Product Specifications
DescriptionVersionSize
DB3028: 1 W wireless charger system Tx/Rx based on STM32F0 and STWLC031.0556 KB
Board Manufacturing Specifications
DescriptionVersionSize
STEVAL-ISB039V1 gerber files1.0499 KB
Bill of Materials
DescriptionVersionSize
STEVAL-ISB039V1 BOM1.060 KB
Schematic Packs
DescriptionVersionSize
STEVAL-ISB039V1 schematics1.0722 KB
License Agreement
DescriptionVersionSize
Evaluation products license agreement1.0125 KB
Sample & Buy
Part NumberCore ProductUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STEVAL-ISB039V1STWLC03;911NEC3A991A2-
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
STEVAL-ISB039V1CARDIndustrialEcopack2
1 W wireless charger system Tx/Rx based on STM32F0 and STWLC03 STEVAL-ISB039V1
1 W wireless charger system Tx/Rx based on STM32F0 and STWLC03 STEVAL-ISB039V1
1 W wireless charger system Tx/Rx based on STM32F0 and STWLC03 STEVAL-ISB039V1
1 W wireless charger system Tx/Rx based on STM32F0 and STWLC03 STEVAL-ISB039V1
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 ST-LINK-V2