Overview

The P9247 is a highly integrated, magnetic induction, wireless power transmitter that supports up to 15W in compliance with the WPC-1.2.4 specification and 30W in proprietary applications. The device is compatible with all popular wireless charging protocols including the WPC Baseline Power Profile (BPP), Extended Power Profile (EPP), up to 7.5W charging for iPhones, and Android proprietary fast charging modes. This system-on-chip solution (SoC) operates with an input voltage range of 5V to 19V and supports various types of wall adapters.

The P9247 includes an industry-leading 32-bit Arm® Cortex®-M0 processor, offering a high level of programmability and extremely low standby power consumption. The P9247 generates power through the power coil, detects the presence of a wireless power receiver, decodes the communication packets from the receiver, and adjusts the transmitted power by controlling the voltage based on feedback from the receiver. The transmitter also features a wide range of system protections, such as overcurrent, overvoltage, undervoltage lockout, and real-time foreign object detection (FOD), ensuring maximum utility and safety for customers. The transmitter also allows for power adjustment via frequency, duty-cycle, and/or bridge voltage adjustment, and offers a significant margin to EMI requirements in all regions of the world.

The P9247 is available in a lead-free, space-saving 48-VFQFPN package. The product is rated for a -40 °C to +85 °C operating temperature range.

For information regarding evaluation boards and material, contact your local Renesas sales representative.

P9247 - Applications Circuit
P9247 - Applications Circuit
  • Power transfer up to 30W in proprietary mode and 15W at the receiver side in EPP mode
  • Real-time foreign object detection (FOD)
  • Wide input voltage range: 5V to 19V
  • Supports various types of wall adapters
  • WPC-1.2.4 compatible
  • Integrated drivers for external power MOSFETs
  • Embedded 32-bit Arm Cortex-M0 processor
  • Simultaneous voltage and current demodulation scheme for WPC communication
  • Integrated current sense amplifier
  • Low standby power
  • Active-LOW Enable pin for electrical on/off
  • Overcurrent and over-temperature protection
  • Supports I²C interface
  • -40 °C to +85 °C ambient operating temperature range
  • 48-VFQFPN (6mm x 6mm) RoHS-compliant package

Applications

  • BPP and EPP wireless charging pads
  • Up to 7.5W charging for iPhones
  • Android fast charging pads
  • Cradles
  • Tablets
  • After-market automotive wireless charging pads

Documentation

= Featured Documentation
Type Title Date
Datasheet - Short-form
P9247 Short-Form Datasheet
PDF 438 KB
End Of Life Notice
PLC# : 230010 End-of-Life (EOL) process on select part numbers
PDF 1.11 MB
Product Change Notice
PCN# : 220015 (R1) Add Alternate Assembly Location on VFQFPN Packages
PDF 734 KB
Product Change Notice
PCN# : 220015 Add Alternate Assembly Location on VFQFPN Packages
PDF 728 KB
Application Note
Wireless Power Transmission Resonance LC Calculations
Log in to Download PDF 3.74 MB
White Paper
Tuning Qi and AirFuel / PMA Inductive Resonance Circuits for Optimal Efficiency
PDF 627 KB
6 items

Design & Development

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
    P9247-0NDGI
    circleObsolete
    memory
    view_in_ar
    		VFQFPN 48 I Yes Tray
    P9247-0NDGI8
    circleObsolete
    memory
    view_in_ar
    		VFQFPN 48 I Yes Reel
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