Features
- 5W Solution for Wireless Power Consortium (WPC)-compliant power transmitter design A5/A11
- Conforms to WPC version 1.1 specifications
- 5V Operating Input Voltage
- Uses External Full-Bridge Inverter
- Closed-Loop Power Transfer Control between Base Station and Mobile Device
- Demodulates and Decodes WPC-compliant message packets
- Integrated RESET Function
- Proprietary Back-Channel Communication
- I2C Interface
- Open-Drain LED Indicator Outputs
- Over-Temperature/Current Protection
- Security and Encryption up to 64 bits
- Foreign Object Detection (FOD)
IDTP9035A Block Diagram
Description
The IDT P9035A is a highly-integrated WPC-compliant wireless power transmitter IC for power transmitter design A5 and A11, which meets the requirements for compliance with the WPC 1.1 standard. The device operates with a 5V (±5%) adaptor, and utilizes an external full-bridge inverter to provide a highly-efficient solution for A5/A11 transmitter applications. It controls the transferred power by modulating the switching frequency of the full-bridge inverter from 110kHz to 205kHz at a fixed 50% duty cycle specified by the WPC specification for an A5/A11 transmitter. It contains logic circuits required to demodulate and decode WPC-compliant message packets sent by the mobile device to adjust the transferred power.
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