The RAA458100 is wireless charging system transmitter IC for low power applications. When RAA457100 is used in a receiver, a wireless charging system with bi-directional communication can be constructed.


  • Three operation modes which are available for various applications ATPC(AuTomatic Power Control) Mode , MCU Control Mode , Stand Alone Mode
  • Gate drive output for MOSFET bridge circuit : half bridge or full bridge is selectable
  • Over current protection for bridge circuit (OCP), Over temperature protection (THM), and various protection functions
  • Monitoring input voltage or current of bridge circuit and thermistor voltage (Temperature) by 12bit A/D convertor
  • Modulation/Demodulation function for bi-directional communication between transmitter and receiver
  • RAA457100 registers can be set by bi-directional communication from RAA458100 (ATPC Mode)

Product Options

Part Number Part Status Pkg. Type Carrier Type Buy Sample
Active QFN Embossed Tape

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
RAA458100GNP Data Sheet 日本語 Datasheet PDF 1.18 MB
Technical Updates
Correction for Incorrect Description Notice RAA458100GNP and RAA457100GBM Wireless Charging Solution Evaluation Kit (WiQ-TX00-B00 / WiQ-RX00-B00) Rev.1.00 Changed 日本語 Technical Update PDF 97 KB
Correction for Incorrect Description Notice RAA458100GNP Datasheet Rev.1.00 Changed 日本語 Technical Update PDF 95 KB
Application Notes & White Papers
Wireless Charging Solution Evaluation Kit (WiQ-TX00-B00 / WiQ-RX00-B00) (R19AN0043EJ0101) 日本語 Application Note PDF 2.75 MB
Register Access Method from Transmitter System to MCU of Receiver system in operation mode of AT3 日本語 Application Note PDF 1.09 MB
Reading Method for the Average Input Current of Bridge Circuit in Transmitter System 日本語 Application Note PDF 1022 KB
RAA457100GBM Selection of the Inductor for DCDC Converter 日本語 Application Note PDF 311 KB
Wireless Charging System Configuration and Function For Low Power Application 日本語 Application Note PDF 315 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
Wireless Power Products Overview Overview PDF 1.25 MB
Industrial Power Management Brochure ( R16CL0001EJ0200 ) 日本語 Brochure PDF 3.13 MB
Renesas Wireless Charging Solution ICs Flyer PDF 2.06 MB