First reference design for Qi2 wireless charging
Infineon Technologies is demonstrating its reference design for Qi2 Magnetic Power Profile (MPP) wireless charging for the first time next week.
The REF_WLC_TX15W_M1 reference design kit has a highly integrated form factor with a diameter of less than 43 mm and a programmable wireless charging transmitter for the Qi2 specification centred around an Infineon WLC1 controller. It is on show in the US on 25th October.
The MPP profile in Qi2 offers magnet-based fixed positioning with an intuitive user experience for automotive and consumer applications such as in-cabin wireless charging, smartphones and EarPods cases, portable speakers, and healthcare equipment.
The reference design kit demonstrates the capabilities of Infineon’s Qi2-capable WLC1 which is already available on the market. The IC integrates a microcontroller (MCU) with Flash memory, a 4.5 V to 24 V DC input buck-boost controller, inverter gate drivers, and factory-trimmed current sensing. It features analog protection peripherals, USB PD, and LIN as well as serial interfaces enabling efficient and smart power delivery.
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The REF_WLC_TX15W_M1 is supported with code examples in ModusToolbox to help users take advantage of the IC’s configuration capabilities. The 15 W Qi2 MPP solution board is backward compatible with a basic power profile (BPP) that allows receivers without MPP support to wirelessly charge at 5 W. In addition, a multipath ASK demodulator and adaptive foreign object detection (FOD) are provided, making the design a robust and secure wireless power solution.
“With the emerging Qi2 standards, our programmable solutions offer the flexibility that the industry needs to adapt swiftly and offer differentiated features for automotive and consumer applications,” said Ganesh Subramaniam, Senior Vice President and General Manager of the Wired Connectivity Solutions Product Line at Infineon.
The WLC1 transmitter controllers can be ordered now: the WLC1515 for the automotive package and the WLC1115 for the consumer package. REF_WLC_TX15W_M1 solution board is available on demand.