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NXP Semiconductors Electronic Components Datasheet

WCT1111DS Datasheet

wireless power transmitter controller

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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 freedom and product differentiation,
the WCT1111 supports the extended power profile
consumer power transmitter design (WPC MP-Ax types,
MP-Bx types or customization) using operation frequency
and duty cycle control, phase difference control and
topology switch 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 WCT1111 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


NXP Semiconductors Electronic Components Datasheet

WCT1111DS 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 ......................................................................................................................... 18
3 Typical Performance Characteristics ............................................................................................... 19
3.1 System efficiency .................................................................................................................................................. 19
3.2 Standby power......................................................................................................................................................19
3.3 Digital demodulation ............................................................................................................................................ 19
3.4 Two-way communication ...................................................................................................................................... 19
3.5 Foreign object detection ....................................................................................................................................... 19
4 Device Information ................................................................................................................................. 20
4.1 Functional block diagram ...................................................................................................................................... 20
4.2 Product features overview .................................................................................................................................... 20
4.3 Pinout diagram ..................................................................................................................................................... 22
4.4 Pin function description ........................................................................................................................................ 22
4.5 Ordering information ............................................................................................................................................ 32
WCT1111DS, Rev. 1.1, 09/2016
2
NXP Semiconductors


Part Number WCT1111DS
Description wireless power transmitter controller
Maker NXP
Total Page 3 Pages
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