STEVAL-ISB039V1

The STEVAL-ISB039V1 is a 1W wireless charger system Tx/Rx based on STM32F0 and STWLC03. This 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 1W that can be recharged easily and can be adjusted for 2.5W. 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 such 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 I?C interface allows the customization of parameters in the device and the storage of configurations in the embedded non-volatile memory.

• 1W output power
• WPC 1.1 based communication protocol
• 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
• Integrated high efficiency synchronous rectifier
• Integrated 1MHz programmable buck converter with input current and input voltage regulation loops