Development of proprietary protocol 'STSC'
Addressing the Demand for High-Power Chargers in the 5G Communication Era


STMicroelectronics (hereinafter ST) announced on the 11th that it is launching the 'STWLC88', a Qi wireless charging IC that supports 50W. This product can charge wirelessly as quickly and efficiently as when plugged in.

In order for personal electronic devices to safely transmit high power wirelessly, various problems such as Foreign Object Detection (FOD), overheating, overvoltage, and overcurrent protection must be solved.

To this end, ST developed the STSC (ST SuperCharge) protocol and implemented a solution based on the industry-standard Qi wireless power transfer system. By utilizing this complete turnkey Tx/Rx solution with enhanced capabilities, ST customers can achieve more efficient and secure high-power transmission while complying with Qi specifications.

The STWLC88 integrates multiple circuits, significantly reducing the Bill of Materials (BOM) cost, and is highly suitable for integration into various applications with limited PCB area requirements. The STWLC88, compliant with WPC's Qi 1.2.4 EPP, is fully compatible with all Qi EPP certified transmitters on the market.

Francesco Italia, Head of the Analog Custom Products Business Unit, stated, “We have developed technology that supports a wide range of power levels to address the increasing demand for high-power chargers in the 5G communication era.”