15W Wireless Charging Transmitter with Bi-Directional Data Communication

The P9242-R3 is a highly-integrated 15W magnetic induction wireless power transmitter with in-band, bi-directional data communication requiring no additional circuitry. The communication channel can be used for proprietary device authentication and secure system data transfer.

The P9242-R3 includes a 32-bit ARM®  Cortex®-M0 processor, foreign object detection (FOD), wide input voltage range operation, full bridge drivers, and on-chip simultaneous voltage and current demodulation.

In addition, the P9242-R3 features programmable over-current protection, programmable LED output blinking pattern, and I²C serial interface protocol to read back information such as voltage, current, and fault conditions. This standard device is compliant to the WPC-1.2 specification. Combined with the P9221-R3 receiver, the P9242-R3 forms complete wireless power system solution for 15W applications with bi-directional data communication.

The P9242-R3 is available in a space-saving 48-VFQFN package. It is rated for -40ºC to +85ºC ambient operating temperature range.                    

Features

  • Supports bi-directional data communication 
  • Enables authentication and system data transfer
  • Up to 15W of power transfer
  • 87% end-to-end efficiency when combined with the P9221-R3
  • VIN range: 4.25V–21V
  • Integrated drivers for external power FET's
  • Integrated step-down switching regulator
  • Simultaneous voltage and current demodulation
  • Standard device compliant with WPC-1.2 specification
  • Supports I²C interface
  • -40°C to +85°C ambient operating temperature range
  • 6 x 6 mm, 48-VFQFPN package

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
P9242-R3NDGI Active NDG48P2 VFQFPN 48 I Yes Tray Availability
P9242-R3NDGI8 Active NDG48P2 VFQFPN 48 I Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
P9242-R3 Short-Form Datasheet Short Form Datasheet PDF 30 KB Nov 3, 2017
P9242-R3 Datasheet Datasheet PDF 1.25 MB Oct 20, 2017
Application Notes & White Papers
Tuning Qi and AirFuel / PMA Inductive Resonance Circuits for Optimal Efficiency White Paper PDF 541 KB May 10, 2017
AN-816 IDT Wireless Power Transmission Resonance LC Calculations Application Note PDF 284 KB Jan 16, 2014
Other
The IDT Consumer Products Advantage Overview PDF 4.01 MB Jun 30, 2017
The IDT Automotive Advantage Overview PDF 3.55 MB May 26, 2017
Wireless Power Reference Kits Overview Overview PDF 2.04 MB Feb 21, 2017

Evaluation Boards

Part Number Title Sort ascending
WP15WBD-RK 15W Wireless Charging Solution with Bi-Directional Data Communication