The P9221-R-EVK is a turnkey 15 Watt, Qi-compliant wireless power receiver reference kit for fast prototyping and design integration. The kit consists of an easy-to-use reference board and comprehensive support collateral that significantly eases design-in effort and minimizes time-to-market. 

An associated layout module enables direct instantiation on to a system board, while an optimized and fully-tested Bill-of-Materials (BOM) takes the guess-work out of component selection. The P9221-R based solution is well-suited for a wide range of applications, including Tablets, furniture, medical devices, and other portable devices still hindered by traditional contact-based charging bases or cables. 

Need a wireless power transmitter too? See the P9242-R-EVK.


  • Supports up to 15W
  • WPC 1.2.2 (Qi) compliant for interoperability w/ other devices
  • Programmable output voltage - 9 or 12V
  • Patented over-voltage protection clamp eliminating external capacitors
  • Proprietary coil alignment guide
  • Embedded 32 bit ARM® Cortex®-M0 processor
  • Compact form factor for fast prototyping
  • Layout module provided for direct copy to system board
  • Optimized PCB reference layout and fully-tested BOM
  • High-quality receiver coil by Amotech
  • Supported by extensive library of digital support collateral (see below)

tuneProduct Options

Part Number Part Status Buy Sample


Title language Type Format File Size Date
User Guides & Manuals
star P9221-R MM EVK User Manual Manual - Development Tools PDF 976 KB
P9221-R Layout Guidelines Guide PDF 1.05 MB
P9221-R MM Evaluation Board User Manual Manual - Hardware PDF 1.67 MB
Application Notes & White Papers
Tuning Qi and AirFuel / PMA Inductive Resonance Circuits for Optimal Efficiency White Paper PDF 627 KB
Wireless Power Products Overview Overview PDF 1.14 MB
P9221-R-EVK v2.2 4-layer Gerber Files Engineering ZIP 460 KB
P9221-R-EVK v2.2 Allegro Schematic DSN File Schematic DSN 220 KB
P9221-R-EVK v2.2 Bill-of-materials (BOM) Engineering XLSX 11 KB
P9221-R-EVK v2.2 PDF Layout Schematic PDF 100 KB
P9221-R-EVK v2.2 PDF Schematic Schematic PDF 56 KB
P9221-R and P9242-R Wireless Power Reference Kits for 15W Applications Product Brief PDF 253 KB
P9221-R Wireless Power Receiver for 15W Applications Product Brief PDF 291 KB


Title language Type Format File Size Date
P9221-R-EVK v2.2 4-layer Allegro Board File PCB Design Files BRD 1.36 MB