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Qi-based wireless power receiver reference design for wearable applications up to 2.5 W using STWLC68

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Parameter NameParameter Value
Core ProductSTWLC68
Packing TypeNot Applicable
RoHs compliantEcopack2
Package NameCARD

The STEVAL-ISB68WA is a reference design for wearable applications based on the STWLC68 wireless power receiver. The kit includes a receiver board with a small 15 mm diameter receiving coil and provides a constant output voltage with 2.5 W maximum output power.

The board supports Foreign Object Detection (FOD) for safe operation and is ready for immediate use when placed on a suitable wireless power transmitter.

An on-board LED indicates connection with the transmitter succeeds and enabled output voltage, and a programmable interrupt output is available to inform the host system in user applications.

The complete application is confined in a 10x10 mm PCB area and the layout is designed to facilitate probing and user customization.

A free STSW-ISB68GUI Graphic User Interface (GUI) is provided to monitor and configure the receiver on your PC using the USB-to-I²C dongle included in the kit.

Key features
  • Based on STWLC68 wireless power receiver
  • Designed according to Qi 1.2.4 specifications
  • Constant 5 V output voltage (default setting)
  • Up to 2.5 W output power
  • Foreign Object Detection (FOD) supported
  • 400 kHz I²C interface for communication with host system
  • Compact 10x10 mm application area
  • Complete kit includes receiver board, USB-to-I²C bridge dongle and GUI
  • RoHS compliant