STMicroelectronics has revealed the world’s fastest Qi wireless charging IC, STWLC88. Delivering as much as 50W of power, the new device enables consumers to charge smart phones, tablets, laptops, and other personal electronic devices without cables as safely and nearly as quickly and efficiently as they could by plugging them in. ST’s state-of-the-art 50W wireless-power IC charges smart phones two times faster than the previous-generation device.
“ST’s latest STWLC88 wireless-charging IC provides the best solution for wireless-charging applications with industry-leading efficiency, highest power delivery, and maximum safety,” said Francesco Italia, General Manager, Analog Custom Products Division, STMicroelectronics. “With the launch of the world’s fastest charger, ST has expanded the portfolio to cover a wide range of power levels to meet the increasing demand for higher-power chargers in the age of 5G communications.”
Safe, wireless delivery of high power to charge personal electronics must address a range of challenges including efficiency, reliable communication, Foreign Object Detection (FOD), and thermal, over-voltage, and over-current protection. A long-standing member of the Wireless Power Consortium, ST has spent years crafting solutions on top of the industry-standard Qi wireless power transfer system to address these challenges beyond the standard with patented hardware, cutting-edge signal processing algorithms, and proprietary ST SuperCharge (STSC) protocol.
Together these enhancements allow ST customers to utilize the complete turnkey Tx/Rx solution consisting of the STWLC88 and the STWBC2 digital controller to achieve high power efficiently and safely while remaining compliant with Qi specifications.
The STWLC88 incorporates multiple circuits to substantially reduce the external BoM (Bill of Materials), making it ideal for integration in a wide range of applications with restrictive PCB area requirements. Being WPC Qi 1.2.4 EPP compliant, the STWLC88 is fully compatible with all Qi EPP certified transmitters in the market. As a result, the STWLC88 offers state-of-the-art features that are critical for performance and safety and is ideal for medium- to high-power wireless-charging applications.
The STWLC88 can also operate in high-efficiency transmitter mode to allow high-power charge-sharing mode. This is coupled with the STWLC88’s industry-first Q factor detection in a receiver device to ensure safe operation and protection to end-users.