MWCT1012VLF

Features

· Compliant with the latest version Wireless Power Consortium(WPC)power class 0 specification power transmitter design

· Supports wide transmitter DC input voltage range of 5Vto 24V

· Integrated digital demodulation

· Supports two-way communication,transmitter to receiver by FSK and receiver to transmitter by ASK

· Supports Q factor detection and calibrated power loss based Foreign Object Detection(FOD)framework

· Supports low standby power

· Uses rail voltage control,phase difference control or duty cycle control with the fixed operation frequency to alleviate EMI in the EMI sensitive system

· Supports operation frequency dithering technology to eliminate interference with specific frequency band electronic devices

· Supports CAN/IIC/SCI/SPI interfaces

· LED for system status indication

· Over-voltage/current/temperature protection

· Software based solution to provide maximum design freedom and product differentiation 

Applications

· Industrial/Consumer Extended Power Profile Power Transmitter 

    o WPC compliant or customer properties

Overview Description

The WCT101x is a wireless power transmitter controller that integrates all required functions for WPC "Oi"compliant wireless power transmitter design. It is an intelligent device that works with the NXP touch sensing technology or uses periodically analog PING to detect a mobile device for charging while gaining super low standby power. Once the mobile device is detected, the WCT101x controls the power transfer by adjusting the rail voltage, the phase difference, or the duty cycle of the power stage according to message packets sent by the mobile device.

To maximize the design freedom and product differentiation, the WCT101x supports the extended power profile industrial/consumer power transmitter design(WPC MP-Ax types, MP-Bx types or customization) using the fixed operation frequency control methods such as railvoltage control, phase difference control or duty cycle control etc. by software based solution, which can supportwireless charging with both extended power profile power receiver and baseline power profile power receiver. In addition, the easy-to-use FreeMASTER GUI tool has configuration, calibration and debugging functions to provide the user-friendly design experience and reduce time-to-market.

The WCT101x includes a digital demodulation module to reduce the external components, an FSK modulation module to support two-way communication,a protection module to handle the over-voltage/current/temperature protection, an FOD module to protect from overheating by misplaced metallic foreign objects, and general CAN/IIC/SCI/SPI interfaces for external communications.

It also handles any abnormal condition and operational status and provides comprehensive indicator outputs for robust system design.

Wireless Charging System Functional Diagram

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