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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

Board Manufacturing Specifications

Bill of Materials

Schematic Packs

License Agreement

Sample & Buy

Quality & Reliability