In the past few years, with the rapid development of the wireless charging market, more and more applications and wireless charging functions have made it advantageous for their own use. In order to help designers overcome the challenges posed by modern wireless charging and meet the requirements of key applications, Infineon Technology Co., Ltd. released the WLC1115 transmitter controller IC, the first product of the new WLC series controller, which uses inductive wireless charging technology. In addition, Infineon also provides a reference design solution for the MP A11 wireless charging transmitter based on WLC1115 and certified by Qi v1.3.2, which can be applied to smart phones, smart speakers, docking stations, display brackets, industrial accessories or medical device accessories and other fields
Ajay Srikrishna, senior vice president and general manager of Infineon's cable connection solution product line, said, "Many consumer and industrial applications require wireless charging solutions to comply with the latest Qi standard protocol. For these applications, the WLC1115 transmitter controller and supporting wireless charging reference design are ideal. With the continuous development of inductive wireless charging standards, our programmable solutions will provide greater flexibility to support higher power and allow OEM manufacturers to comply with Qi while achieving differentiated functions Standard protocol. "
Infineon WLC1115 is a highly integrated, Qi standard protocol compliant, fully configurable 15 W transmitter controller IC, which is suitable for wireless charging solutions. It integrates USB-PD/PPS power receiving terminal chip, DC/DC controller, DC/DC grid driver, full bridge inverter, inductive peripherals and configurable flash memory. The WLC1115 supports a wide input voltage range from 4.5 V to 24 V, as well as ASK demodulation based on multi-path voltage and current. In addition, the controller not only carries an integrated programmable high-voltage side current induction amplifier, but also realizes foreign object detection (FOD) based on Q factor, resonant frequency and power loss. It also has comprehensive programmable protection functions, including UVLO, OVP, OCP and OTP.
The transmitter solution based on WLC1115 and compliant with Extended Power Profile (EPP) adopts OPTIMA ™ Trust Charge, which meets the certification requirements specified in Qi v1.3.2 standard. With Infineon's very comprehensive USB-C charger product series and extensive MOSFET product portfolio, WLC1115 solution can provide a complete product portfolio, which helps to meet strict regulatory and compliance requirements. In addition, it also comes with software tools to support Qi v1.3.2 standard and private charging protocol.
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