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IDTP9035A Block Diagram
IDTP9035A-P9036A Application Block Diagram


WPC 1.1 5V Wireless Power Transmitter for Tx-A5 and Tx-A11

Alternative Products
NOTICE - The following device(s) are recommended alternatives:

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.


  • 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)

Product Specification

FunctionInput Voltage Range (V)Output Power Max (W)Temp. RangeLead Count (#)Pkg. TypePkg. Dimensions
Power Transmitter4.75 - 5.257.5-40 to 85°C48VFQFPN6 x 6 x .75

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
P9035A-0NTGILast Time BuyNTG48VFQFPN48IYesTrayCheck Availability
P9035A-0NTGI8Last Time BuyNTG48VFQFPN48IYesReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
IDTP9035A Data sheet 4/26/2013 Datasheet PDF 1.83 MB Apr 26, 2013
Apps Notes & White Papers
AN-816 IDT Wireless Power Transmission Resonance LC Calculations Application Note PDF 284 KB Jan 17, 2014
PDN# : CQ-16-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 552 KB May 4, 2016
IDTP9035A Qi Compliance Certificate Miscellaneous PDF 231 KB May 31, 2013

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