NXP Semiconductors Data Sheet
WCT1111DS
Features
Compliant with the latest version Wireless Power Consortium (WPC) power class 0 specification power transmitter design
Supports wide transmitter DC input voltage ranging from 4. 2 V, typically 12 V and 19 V
Integrated digital demodulation Supports two-way communication, transmitter to
receiver by FSK and receiver to transmitter by ASK Supports all types of receiver modulation strategies (AC
capacitor, AC resistor and DC resistor) Supports Q factor detection and calibrated power loss
based Foreign Object Detection (FOD) framework Supports low standby power Supports various power control techniques: operation
frequency control, duty cycle control, phase difference control and topology switch LED for system status indication Over-voltage/current/temperature protection Supports CAN/IIC/SCI/SPI interfaces Software-based solution to provide maximum design freedom and product differentiation FreeMASTER GUI tool to enable configuration, calibration and debugging
Applications
Extended Power Profile Power Transmitter Extended power profile consumer power transmitter solution with operation frequency and duty cycle control, phase difference control, and topology switch (WPC MP-Ax types, MP-Bx types or customer properties)
Document Number: WCT1111DS
Rev. 1. 1 0,9/2016
Overview Description
The WCT1111 is a wireless power transmitter controller that integrates all required functions for WPC “Qi” 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 WCT1111 controls the power transfer by adjusting the operation frequency and duty cycle, or switching topology, or adjusting the phase difference of the power stage according to message packets sent by the mobile device.
To maximize the design fr...