Document Number: WCT101XADS NXP Semiconductors Data Sheet Rev. 1.1 , 01/2021 Overview Description WCT101XADS The WCT101xA is a wireless power transmitter controller Features that integrates all required functions for WPC Qi compliant wireless power transmitter design. It is an Compliant with the latest version Wireless Power intelligent device that works with the NXP touch sensing Consortium (WPC) power class 0 specification power technology or uses periodically analog PING to detect a transmitter design mobile device for charging while gaining super low standby Supports wide transmitter DC input voltage range of 6V power. Once the mobile device is detected, the WCT101xA (limited duration at Start/Stop operation) to 16V controls the power transfer by adjusting the rail voltage, the Integrated digital demodulation phase difference, or the duty cycle of the power stage Supports two-way communication, transmitter to according to message packets sent by the mobile device. receiver by FSK and receiver to transmitter by ASK Supports Q factor detection and calibrated power loss To maximize the design freedom and product differentiation, based Foreign Object Detection (FOD) framework the WCT101xA supports the extended power profile Supports low standby power consumer power transmitter design (WPC MP-Ax types, Uses rail voltage control, phase difference control or MP-Bx types or customization) using the fixed operation duty cycle control with the fixed operation frequency to frequency control methods such as rail voltage control, alleviate EMI in automotive system phase difference control or duty cycle control etc. by Supports key FOB avoidance function software based solution, which can support wireless Supports operation frequency dithering technology to charging with both extended power profile power receiver eliminate AM band interference and baseline power profile power receiver. In addition, the Supports CAN/LIN/IIC/SCI/SPI interfaces easy-to-use FreeMASTER GUI tool has configuration, LED for system status indication calibration and debugging functions to provide the Over-voltage/current/temperature protection user-friendly design experience and reduce time-to-market. Software based solution to provide maximum design freedom and product differentiation The WCT101xA includes a digital demodulation module to Qualified to AEC100 Test Group A&B reduce the external components, an FSK modulation module to support two-way communication, a protection module to Applications handle the over-voltage/current/temperature protection, an FOD module to protect from overheating by misplaced Automotive Extended Power Profile Power Transmitter metallic foreign objects, and general CAN/IIC/SCI/SPI o WPC compliant or customer properties 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 2021 NXP B.V. Contents 1 Absolute Maximum Ratings .................................................................................................................... 4 1.1 Electrical operating ratings...................................................................................................................................... 4 1.2 Thermal handling ratings ........................................................................................................................................ 5 1.3 ESD handling ratings ............................................................................................................................................... 5 1.4 Moisture handling ratings ....................................................................................................................................... 5 2 Electrical Characteristics ......................................................................................................................... 6 2.1 General characteristics ............................................................................................................................................ 6 2.2 Device characteristics .............................................................................................................................................. 8 2.3 Thermal operating characteristics ......................................................................................................................... 22 3 Typical Performance Characteristics ............................................................................................... 23 3.1 System efficiency .................................................................................................................................................. 23 3.2 Standby power ...................................................................................................................................................... 23 3.3 Digital demodulation ............................................................................................................................................ 23 3.4 Two-way communication ...................................................................................................................................... 23 3.5 Foreign object detection ....................................................................................................................................... 23 4 Device Information ................................................................................................................................. 24 4.1 Functional block diagram ...................................................................................................................................... 24 4.2 Product features overview .................................................................................................................................... 24 4.3 Pinout diagram ..................................................................................................................................................... 26 4.4 Pin function description ........................................................................................................................................ 26 WCT101XADS, Rev. 1.1, 01/2021 2 NXP Semiconductors