The P9261-3C-CRB is a turnkey 15 Watt, Qi-compliant wireless power transmitter triple coil reference kit for fast prototyping and design integration. This will enable customers to have faster time to market with a WPC Qi qualified MP-A13 three coils solution. The kit consists of an easy-to-use 3-coil WPC Tx type reference board and 15W EPP receiver board, P9221-R-EVK and comprehensive design 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 P9261 based solution is well-suited for automotive in-vehicle wireless power charging. It meets AEC-Q100, grade 2 standard and CISPR-25 EMI/EMC performance.

Need a 15W Qi wireless power receiver too? See the P9221-R-EVK.


  • AEC-Q100, grade 2 qualified for automotive applications
  • Supports wireless power receivers up to 15W and iOS and Android wireless fast charging
  • Easy to use GUI/API for system status and tuning
  • 4.25V to 21V operating range  
  • Fixed frequency and duty cycle wireless power topology
  • WPC Qi 1.2.4 compliant for interoperability
  • Integrated microcontroller with OTP program memory and supports external flash memory
  • Supports I²C and SPI interfaces
  • Simultaneous voltage and current ASK demodulation scheme
  • Integrated drivers for external power FETs and current voltage sensing
  • Low standby power
  • Integrated Step-down Switching Regulator for internal blocks to increase overall efficiency
  • Advanced foreign objects detection (FOD) function
  • Supports LEDs for status indication
  • Over-current, over-voltage and over-temperature protection
  • Low EMI, meets CISPR-25 EMI/EMC requirement

Product Options

Part Number Part Status Buy Sample

Documentation & Downloads

Title language Type Format File Size Date
User Guides & Manuals
P9261-3C-CRB Automotive Evaluation Kit User Manual Manual - Eval Board PDF 1.99 MB
Application Notes & White Papers
AN-1017 P9261 CRB Command/Status Registry Application Note PDF 353 KB
P9260/1 Interrupt Output Definition and Usage (AN-996) Application Note PDF 97 KB
P9261 Application Note AN-1024 - P9261-3C-CRB Hardware Troubleshooting Application Note PDF 1.42 MB
AN-990 P9260-61 Layout Guidelines Application Note PDF 3.23 MB
AN-1015 P9261 CRB Q-Factor Tuning and Open FOD Thresholds Programming Guide Application Note PDF 482 KB
AN-1016 P9261 CRB Power-Loss and FOD Tuning Guide Application Note PDF 692 KB
P9261-3C-CRB Firmware (v4p0101) Software ZIP 31 KB
P9261-3C-CRB Gerber Files Software 7Z 639 KB
P9261-3C-CRB Software Tool Software Tool ZIP 981 KB
P926x CRB Power-Loss and FOD Thresholds Calculator Tool Software Tool XLSX 38 KB
P9261-3C-CRB Bill of Materials Miscellaneous XLSX 17 KB
P9261-3C-CRB Schematic (v3.22) Schematic DSN 886 KB
P9261-3C-CRB Schematic (v3.22) Schematic PDF 112 KB
P9261-3C-CRB PCB Layout (v3.22) PCB Design Files BRD 2.38 MB