The P9038 is a WPC-compliant Wireless Power Transmitter for A5 and A11 designs operating from 5V supplies conforming with WPC Specification 1.2. Operating in the WPC-compliant mode, the integrated full-bridge inverter supports 8W power transfer utilizing the P902x Receiver family, and ensures efficient switching with EMI/RFI emissions that are better than the requirements of the WPC specification.

To safeguard the device and the system under fault conditions, the P9038 offers resistor programmable Foreign Object Detection, built-in Over-Current protection, and programmable Over-Voltage / Over-Temperature protection. This transmitter is extremely easy to use and provides a complete WPC-compliant solution with minimum external parts count, requiring significantly less board space and lower total solution cost than competing products.


  • 4.5V to 6.9V input operating voltage range, supporting:
    • USB or AC adapter
    • USB dedicated charger port (DCP) detection
  • WPC-1.2 compliant for A5 or A11-type coils
  • Integrated, high-efficiency power stage with low RDS(ON)
  • Integrated foreign object detection & current sense
  • Excellent EMI performance eliminates need for EMI filter
  • Supports up to 8W power transfer to the receiver
  • Demodulates and Decodes Communication Packets from
  • WPC-compliant Receivers
  • I2C Interface for EEPROM access
  • Programmable input over-voltage protection
  • Programmable soft start
  • Current limit and over-temperature protection
  • -40° to +85°C temperature range
  • 7 x 7 mm 56-VFQFPN package
  • See the P9038 on SchemeIt online schematic drawing tool

Product Options

Orderable Part ID Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Not Recommended for New Designs VFQFPN 56 I Yes Tray
Not Recommended for New Designs VFQFPN 56 I Yes Reel

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
P9038 Datasheet Datasheet PDF 406 KB
Application Notes & White Papers
AN-894 P9038 Layout Guidelines Application Note PDF 1.40 MB
PCN# : A1409-01 Changed from Gold Bond Wire to Copper Bond Wire, P9038-0NDGI Product Change Notice PDF 23 KB
Wireless Power Products Overview Overview PDF 1.25 MB
IDT Products for Wired Broadband Applications Application Briefs PDF 686 KB
P9038 Product Brief 日本語, 简体中文 Product Brief PDF 238 KB
P9038-R-EVK & P9025AC-R-EVK Product Brief 日本語, 简体中文 Product Brief PDF 382 KB

Boards & Kits

Part Number Title Type Company
P9038-R-EVK Wireless Power Transmitter Reference Solution
P9225-R-EVK Wireless Power Receiver Evaluation Kit for P9225-R