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NXP Semiconductors Electronic Components Datasheet

WCT101XDS Datasheet

wireless power transmitter controller

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NXP Semiconductors
Data Sheet
WCT101XDS
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 5
V to 24 V
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
Wireless Charging System Functional Diagram
Document Number: WCT101XDS
Rev. 1.2 ,05/2019
The WCT101x 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 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 rail
voltage control, phase difference control or duty cycle
control etc. by software based solution, which can support
wireless 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.


NXP Semiconductors Electronic Components Datasheet

WCT101XDS Datasheet

wireless power transmitter controller

No Preview Available !

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..................................................................................................................................... 27
WCT101XDS, Rev. 1.2, 05/2019
2
NXP Semiconductors


Part Number WCT101XDS
Description wireless power transmitter controller
Maker NXP
Total Page 3 Pages
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