Overview

The P9221-R3 is a high-efficiency 15W magnetic induction wireless power receiver with in-band, bidirectional data communication with no additional circuitry. The communication channel can be used for proprietary device authentication and secure system data transfer.

The P9221-R3 integrates a 32-bit Arm® Cortex®-M0 processor, low RDS(ON) synchronous rectifier, and ultra-low dropout regulator making it ideal for high-efficiency, space-constrained receiver applications. The device features a programmable output voltage, current limitation, and foreign-object detection (FOD) settings. An I²C serial interface allows reading information such as voltage, current, and fault conditions. The device also features a patented over-voltage protection scheme eliminating the need for additional capacitors, which can minimize the external component count and cost. Combined with the P9242-R3 transmitter, the P9221-R3 forms a complete wireless power system solution for 15W applications with bidirectional communication.

The P9221-R3 is provided in a 52-WLCSP package (2.64mm × 3.94mm, 0.4mm pitch), and it is rated for a 0 °C to +85 °C ambient operating temperature range.

P9221-R3 - Block Diagram
P9221-R3 - Typical Application Circuit Diagram
P9221-R3 - Pinout
P9221-R3 - Block Diagram
P9221-R3 - Typical Application Circuit Diagram
P9221-R3 - Pinout
  • Supports bidirectional data communication 
  • Enables authentication and system data transfer
  • Single-chip solution supporting applications with up to 15W
  • Patented over-voltage protection clamp eliminating external capacitors
  • 87% peak DC-to-DC efficiency when combined with the P9242-R3
  • Proprietary coil alignment guide
  • Programmable output voltage and current limit
  • Embedded 32-bit Arm® Cortex®-M0 processor
  • Dedicated remote temperature sensing
  • Standard device compliant with WPC 1.2 specification
  • Supports I²C interface
  • 0 °C to +85 °C ambient operating temperature range
  • 2.64 x 3.94 mm 52-WLCSP package

Documentation

= Featured Documentation
Type Title Date
Datasheet
P9221-R3 Datasheet
PDF 1.54 MB
Application Note
WLCSP Implementation Guidelines
PDF 810 KB
Product Change Notice
PCN# : WP2002-01 TSMC Fab 6 Qualified as Alternate Fab Location
PDF 752 KB
Application Note
Wireless Power Transmission Resonance LC Calculations
Log in to Download PDF 3.74 MB
Datasheet - Short-form
P9221-R3 Short-Form Datasheet
PDF 137 KB
White Paper
Tuning Qi and AirFuel / PMA Inductive Resonance Circuits for Optimal Efficiency
PDF 627 KB
6 items

Design & Development

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WP15WBD-RK

Evaluation
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15W Wireless Charging Solution with Bidirectional Data Communication

The WP15WBD-RK evaluation kit demonstrates 15W wireless power transfer and bidirectional data communication between a transmitter (Tx) board with the P9242-R3 wireless...

Featured Documents:
WP15WBD-RK Bi-directional Data Transfer Evaluation Kit User Manual

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Buy / Sample
    Part Number
    P9221-R3AHGI8
    circleNRND
    memory
    view_in_ar
    Samples Available
    		 WLCSP 52 I Yes Reel Get Samples,
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