Skip to main content


5W, Qi-compliant Wireless Power Receiver IC

The P9025AC is an integrated single-chip, WPC-1.1.2 compliant wireless power receiver with an advanced Foreign Object Detection (FOD) feature. This device operates with an AC power signal from a resonant tank and converts it into a regulated 5.3V output voltage. The receiver includes a high efficiency Synchronous Full Bridge Rectifier and 5.3V tracking LDO output stage. The P9025AC operation automatically detects the transmitter type and initiates WPC AC modulation communication protocols with optimal efficiency.

The device includes the control circuit required to modulate the load to transmit WPC-compliant message packets to the base station. It uses minimal external components to reduce overall solution area and costs.

The P9025AC employs advanced programmable WPC FOD techniques to detect foreign metallic objects placed on the transmitter base station derived from a transmitted and received power transfer algorithm.


  • Integrated Single Chip Receiver (Rx) Solution
    • Integrated Full-Bridge Synchronous Rectifier
    • Integrated 5.3V@1A LDO Regulator Output
  • WPC-1.1.2 compliant
  • Advanced WPC v1.1 Foreign Object Detection (FOD)
  • Programmable FOD setting via external resistor
  • Guaranteed 5W output power
  • Closed-loop power transfer control between TX and RX
  • Support I2C interface with access to:
    • Rectifier voltage
    • Output current
    • Resonance frequency
  • Open-Drain LED Indicator Output
  • Over-Temperature/Voltage/Current Protection
  • 0° to +85°C temperature range
  • 5 x 5 mm 32-VFQFPN package
  • See the P9025AC on SchemeIt online schematic drawing tool

Product Specification

FunctionWireless Power StandardOutput Current Max (A)Output Voltage (V)Output Power Max (W)Lead Count (#)Pkg. Type
Power ReceiverWPC

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
P9025AC-RNBGIActiveNBG32P1VFQFPN32IYesTrayCheck Availability
P9025AC-RNBGI8ActiveNBG32P1VFQFPN32IYesReelCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
P9025AC Datasheet Datasheet PDF 413 KB Sep 1, 2015
Apps Notes & White Papers
AN-886 P9025AC FOD Tuning Guide Application Note PDF 440 KB Aug 26, 2015
AN-889 P9025AC Layout Guidelines Application Note PDF 1.19 MB Aug 23, 2015
P9025AC Product Brief 简体中文, 日本語 Product Brief PDF 1.75 MB Aug 13, 2015
P9038-R-EVK & P9025AC-R-EVK Product Brief 简体中文, 日本語 Product Brief PDF 1.28 MB Aug 13, 2015

Related Videos

  • 2015-08-24 P9025AC 5W Qi Wireless Power Receiver with...
  • 2015-08-24 Wireless Power Reference Kits Overview by IDT