STMicroelectronics introduces highly integrated wireless charging IC

     With the introduction of the STWLC68 series, STMicroelectronics brings to market industry-leading wireless charging solutions with high transmission energy efficiency, safety and reliability. St's latest wireless charging products can be used as both high power receivers and power transmitters, enabling fast transmission and power sharing, and feature FOD(foreign object detection) and other key ST proprietary secure IP technologies.

     STMicroelectronics' proprietary high-voltage technology, combined with outstanding mixed-signal design and comprehensive quality assurance, enables customers to develop and deliver state-of-the-art wireless charging products to the market. STWLC68 series products are highly integrated, require few external components (BoM), and can be used in a wide range of applications, from small wearable devices to larger products such as smartphones and tablets. The STWLC68 complies with the WPC Qi 1.2.4 wireless charging standard and is fully compatible with all Qi certified devices on the market.

     The STWLC68 integrates a fully functional low-impedance, high-voltage synchronous rectifier and low-voltage drop linear regulator to achieve high energy efficiency and low power dissipation, which is critical for applications that are highly sensitive to excess heat accumulation. The on-chip I2C interface supports custom firmware and platform parameters on the chip, and configuration parameters can be saved to internal OTP memory. Additional firmware patches increase the IC's application flexibility. To meet the needs of a wider range of applications, the STWLC68 series is suitable for solutions from 0W to 5W and below. For example, the STWLC68JRH is specifically designed for low power applications.

     The STEVAL-ISB68RX and STEVAL-ISB68WA evaluation boards allow developers to develop and evaluate STWLC68JRH prototypes in standard 5W and PCB area-sensitive 2.5W low-power applications. The evaluation kit is easy to use and comes with a pin socket interface for easy connection of GPIO pins and other important signals. A USB adapter board is attached to the board for configuring the chip register.