12V Wireless Power Transmitter IC for TX-A6 Product Datasheet P9036B Features Description The P9036B is a highly integrated WPC-compliant wireless power 5W WPC 1.2 Compliant Wireless Power transmitter IC for power transmitter WPC design TX-A6. This device Transmitter Single Chip Solution for TX-A6 operates with a 12Vdc adaptor, and drives an external load directly via Excellent EMI performance eliminates an internal half-bridge. It controls the transferred power by changing the need for EMI filters switching frequency of the half-bridge inverter from 110 kHz to 205 kHz 12V Operating Input Voltage as specified by the WPC specification for an A6 transmitter. It contains logic circuits required to demodulate and decode WPC- Closed-Loop Power Transfer Control Between compliant message packets sent by the mobile device to adjust the Base Station and Mobile Device transferred power. Demodulates and Decodes WPC-Compliant The P9036B is an intelligent device, which manages mobile device Message Packets detection, and selection of one of the three coils of the A6 transmitter 5V Regulated DC/DC Converter coil without user supervision. The A6 configuration allows free mobile Integrated RESET Function device positioning over a wider area than configurations that use a Internal half-bridge power MOSFETs single coil, detecting a mobile device for charging while minimizing idle power. Once the mobile device is detected and authenticated, the Proprietary Back-Channel Communication 2 P9036B continuously monitors all communications from the mobile I C Interface device, and adjusts the transmitted power accordingly by varying the Push-Pull GPIO/LED Indicator Outputs switching frequency of the internal half-bridge inverter. Over-Temperature Protection The P9036B can optionally support a proprietary back-channel Optional Buzzer Support communication mode, which enables the device to communicate with Foreign Object Detection (FOD) IDTs wireless power receiver solutions. This feature enables additional layers of capabilities beyond the standard WPC requirements. Applications The P9036B includes over-temperature/current protection and WPC compliant Foreign Object Detection (FOD) to protect the base station WPC-Compliant Wireless Charging Base from overloading in the presence of a metallic foreign object. Stations Additionally, it manages fault conditions associated with power transfer and controls LED outputs to indicate operating status. Wireless Base Station Mobile Device Interface Transmitter(s) Receiver Control Control System Control System Comm Cont Comm Comm Cont Load Sensing Reflection Sensing DeMod Mod Control Control Power Generation Power Pick-Up IN Out PWR Induction PWR Package: 6x6-48 TQFN Revision 1.0.0 1 2016 Integrated Device Technology, Inc. Input Power Output Load+ P9036B Product Datasheet SIMPLIFIED APPLICATION DIAGRAM PS,VIN PS,GND R SENSE L BUCK C C OUT BST C IN C BRIDGE,IN SW C S Tx-A6 Coil ISNS C IDTP9036B ISNS,OUT GPIO 0 LDO5V GPIO 2 C 5V,OUT GPIO 6 3xFET COIL,SELECTION PGND SCL SDA EEPROM WP BAND HPF PASS FILTER GPIO 4 GPIO 1 Buzzer GPIO 3 GPIO 5 C 2P5V,OUT LDO2P5V RESET Thermal VOSNS EN Monitoring R TH Figure 1. P9036B Simplified Application Schematic Revision 1.0.0 2016 Integrated Device Technology, Inc. 2 LEDA LEDB REG IN BUCK5VT IN BST LX EP BUCK5VT SNS GND BUCK5VT LDO2P5V IN IN