The RAA457100 is a receiver IC for low power wireless charging system. RAA457100 performs battery charging by wireless transmission power and DC power supply to receiver application system from battery. When RAA458100 is used in a transmitter, a wireless charging system with bi-directional communication can be constructed.

Features

  • Wireless battery charging
  • DC power supply to application system by high efficiency DCDC converter
  • Monitoring some pin voltages such as rectified output voltage, battery voltage by 12bit A/D converter
  • Modulation/Demodulation function for bi-directional communication between transmitter and receiver
  • Transmitter system(RAA458100) can read and write RAA457100 registers for setting charge control parameters
  • Function which converts wireless communication to 2-wrie serial communication for communication between transmitter and receiver application system
  • Battery protection, Low battery voltage detection

Product Options

Part Number Part Status Pkg. Type Carrier Type Buy Sample
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Availability

Documentation

Title language Type Format File Size Date
Datasheets & Errata
RAA457100GBM Data Sheet 日本語 Datasheet PDF 862 KB
Technical Updates
Correction for Incorrect Description Notice RAA458100GNP Datasheet Rev.1.00 Changed 日本語 Technical Update PDF 95 KB
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
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
Reading Method for the Average Input Current of Bridge Circuit in Transmitter System 日本語 Application Note PDF 1022 KB
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
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
Other
Industrial Power Management Brochure ( R16CL0001EJ0200 ) 日本語 Brochure PDF 3.13 MB
Renesas Wireless Charging Solution ICs Flyer PDF 2.06 MB
Wireless Power Products Overview Overview PDF 1.14 MB