The MWCT2xx3A from NXP Semiconductors are Automotive Qualified Wireless Power Transmitter Controller ICs that are designed to support WPC/Qi standards and other proprietary specifications. They require an input voltage of 5 - 48 V. These transmitter ICs are designed to intelligently detect if a mobile device is placed on the charging pad and when detected, control the power transfer according to the message packets sent by the mobile device. They support 2-way communication, utilize ASK and FSK modulation techniques at the transmitter and receiver, and use up to 2 digital demodulation modules to reduce the number of external components. These charging ICs utilize operating frequency dithering technology to minimize the number of peak emissions occurring at specific frequencies.
The MWCT2xx3A are equipped with NXP’s FREE MASTER GUI software-based solution to provide design freedom and the ability to upgrade products, thereby eliminating the need to change the hardware design and reducing time-to-market. These AEC-Q100 qualified transmitters ICs use CAN, IIC, SCI, and SPI interfaces to communicate with external devices and embeds a Foreign Object Detection (FOD) module to protect against over-heating due to misplaced metallic foreign objects on each charging pad. They consist of over-voltage protection (OVP) and over-current protection (OCP) circuitries to prevent short-circuit-related damages. These wireless charging ICs are available in a surface-mount package and is ideal for automotive, single/multi-coil industrial, consumer, single- and multi-transmitter applications.