Freescale Semiconductor Document Number: MWCT1200DS Data Sheet Rev. 1.0, 01/2015 MWCT1200DS Overview Description The WCT1200 is a wireless power transmitter controller that Features integrates all required functions for WPC Qi compliant Low power (5 W) solution for Wireless Power wireless power transmitter design. Its an intelligent device Consortium (WPC) compliant transmitter design to work with Freescale touch sensing technology or use Conforms to the V1.1 low power WPC specifications periodically analog PING (configurable by user) to detect a Supports wide DC input voltage range starting from mobile device for charging while gaining super low standby 4.5 V, typically 5 V, 12 V power. Once the mobile device is detected, the WCT1200 Integrated digital demodulation on chip controls the power transfer by adjusting the operation Supports all types of receiver modulation strategies (AC frequency of the power stage according to message packets capacitor, AC resistor and DC resistor) sent by the mobile device. Supports power loss Foreign Object Detection (FOD) In order to maximize the design freedom and product Supports resonance shift FOD before the power transfer differentiation, WCT1200 supports any low power free action. positioning multiple coils power transmitter design (WPC Dynamic input power limit for power limited power types or customization) using operation frequency and duty supply input, like USB power cycle control by software based solutions. Besides, Super low standby power (less than 40 mW) by easy-to-use FreeMASTER GUI tool with configuration, Freescale GPIO Touch Sensing technology calibration and debugging functions provides user-friendly Supports any free positioning multiple coils power design experience and speed time-to-market. transmitter solutions using frequency and duty cycle The WCT1200 includes digital demodulation module to control reduce external components, dynamic input power limit LEDs for system status indication function for power limited power supply input, Over-voltage/current/temperature protection over-voltage/current/temperature protection and FOD Software based solution to provide maximum design method to protect from overheating by misplaced metallic freedom and product differentiation foreign objects. It also handles any abnormal condition and FreeMASTER GUI tool to enable configuration, operational status, and provides comprehensive indicator calibration, and debugging outputs for robust system design. Applications Low Power Wireless Power Transmitter Any free positioning multiple coils solution with frequency & duty cycle control (WPC types or customer properties) Wireless Charging System Functional Diagram Freescale Semiconductor, Inc., 2015. All rights reserved. Contents 1 Absolute Maximum Ratings .................................................................................................................... 5 1.1 Electrical operating ratings...................................................................................................................................... 5 1.2 Thermal handling ratings ........................................................................................................................................ 6 1.3 ESD handling ratings ............................................................................................................................................... 6 1.4 Moisture handling ratings ....................................................................................................................................... 6 2 Electrical Characteristics ......................................................................................................................... 7 2.1 General characteristics ............................................................................................................................................ 7 2.2 Device characteristics .............................................................................................................................................. 9 2.3 Thermal operating characteristics ......................................................................................................................... 14 3 Typical Performance Characteristics ............................................................................................... 15 3.1 System efficiency .................................................................................................................................................. 15 3.2 Standby power ...................................................................................................................................................... 16 3.3 Digital demodulation ............................................................................................................................................ 16 3.4 Foreign object detection ....................................................................................................................................... 16 3.5 Dynamic input power limit .................................................................................................................................... 17 4 Device Information ................................................................................................................................. 18 4.1 Functional block diagram ...................................................................................................................................... 18 4.2 Pinout diagram ..................................................................................................................................................... 18 4.3 Pin function description ........................................................................................................................................ 19 4.4 Ordering information ............................................................................................................................................ 20 4.5 Package outline drawing ....................................................................................................................................... 20 MWCT1200DS, Rev. 1.0 2 Freescale Semiconductor
