WPC 1.2 Compliant, Wireless Charging Transmitter for 15W Applications

The P9242-R is a highly-integrated 15W magnetic induction wireless power transmitter compliant to the WPC-1.2 specification. The product is designed to withstand a wide input voltage range of 4.25V to 21V, while consuming very low power in standby mode.

The transmitter includes a 32-bit ARM Cortex®-M0 processor, foreign object detection (FOD), full bridge drivers and on-chip simultaneous voltage and current demodulation. The device features a programmable current, programmable LED pattern; and I2C serial interface protocol to read back information such as voltage, current and fault conditions. Together with P9221-R receiver, the P9242-R is a complete wireless power system solution for 15W applications. The P9242-R is available in a , space-saving 6 x 6 mm 48-VFQFPN package. It is rated for -40ºC to +85ºC ambient operating temperature range.

Features

  • VIN range: 4.25 to 21 V
  • Compliant to WPC-1.2 specification
  • Up to 15W of power transfer
  • 86% end to end efficiency
  • Low standby and sleep mode power                                      
  • Integrated step-down switching regulator
  • Simultaneous voltage & current demodulation
  • Integrated 32bit ARM® Cortex®-M0 processor
  • Supports I2C interface

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
P9242-RNDGI Active NDG48P2 VFQFPN 48 I Yes Tray
Availability
P9242-RNDGI8 Active NDG48P2 VFQFPN 48 I Yes Reel
Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
P9242-R Datasheet Datasheet PDF 1.13 MB Jan 16, 2018
User Guides & Manuals
P9242-R Layout Guidelines Guide PDF 786 KB Dec 21, 2016
Application Notes & White Papers
Wireless Power Transmission Resonance LC Calculations Application Note PDF 3.63 MB Jun 12, 2018
Tuning Qi and AirFuel / PMA Inductive Resonance Circuits for Optimal Efficiency White Paper PDF 541 KB May 10, 2017
PCNs & PDNs
PCN# : WP1706-01 Firmware change, P9242-RNDGI(8) Product Change Notice PDF 50 KB Jul 9, 2017
Other
Wireless Power Overview Overview PDF 534 KB Jul 25, 2018
Errata#: WPEN-17-01 Device Errata P9242-RNDGI, P9242-RNDGI8 Device Errata PDF 20 KB Dec 19, 2017
P9221-R and P9242-R Wireless Power Reference Kits for 15W Applications Product Brief PDF 253 KB Dec 14, 2016
P9242-R Wireless Power Transmitter for 15W Applications Product Brief PDF 307 KB Dec 6, 2016

Evaluation Boards

Part Number Title Sort ascending
P9242-R-EVK Wireless Power Transmitter Reference Solution
P9221-R-EVK Wireless Power Receiver Reference Solution