Power Receiver LSIs (13.56MHz Wireless Charge)
Power Receiver LSIs (13.56MHz Wireless Charge)

Power Receiver LSIs (13.56MHz Wireless Charge)

Parametric Search

 
X X

      Loading
      Loading
      Loading

      Supporting Information

       

      Wireless charging LSI
      13.56MHz (NFC)

      Overview

      13.56 MHz wireless charging chip set

      The 13.56MHz wireless charging LSI from LAPIS Technology utilizes 13.56MHz for power transmission. The use of this band enables miniaturization of antennas, making it possible to use connectorless devices such as wristband blood pressure monitors, smart watches, and hearing aids, which have limited space for antenna mounting.
      The power receiving LSI supports wireless charging of up to 1W and is available in a small WL-CSP package and a highly reliable QFN package.
      The power transmission LSI integrates the functions required for power transmission, such as detecting the detachment of the power receiving device and setting the power transmission level, into a single chip. This eliminates the need for an external microcontroller and enables wireless power supply to small devices with the world's smallest mounting space.

      Videos

      Introducing the ML763x/ML766x, a 13.56HMz wireless charging LSI solution.

      04:02  

      Digest Version : Wireless Charging LSI Seminar
      : Japanese

      10:00  

      2018, ET Expo Engineering Presentations.
      13.56MHz wireless charging chipset ideal for wearable devices. : Japanese

      12:23  

      Introducing the ML763x/ML766x, a 13.56HMz wireless charging LSI solution.

      04:02  

      Digest Version : Wireless Charging LSI Seminar
      : Japanese

      10:00  

      2018, ET Expo Engineering Presentations.
      13.56MHz wireless charging chipset ideal for wearable devices. : Japanese

      12:23  
      • Cooperation on Wireless Charging Solutions
      • ROHM’s New 13.56MHz Wireless Power Supply Chipset up to 1W“ML766x” 2021/12/9/News Releases
      • wireless charging chipset“ML7660 / ML7661”Special Site
      • 	The special site for LAPIS 13.56 MHz (NFC) wireless charging chip set, ML7630/ML7631.

      Product Features

      Feature 1Super small chip with the power receiver function, build-in software removes the need for software development

      13.56 MHz wireless charging chip set

      The power receiving LSI incorporates the power receiving function into a small WL-CSP package or a highly reliable QFN package.
      In addition, both the power receiving LSI and power transmission LSI are equipped with software, eliminating the need for program development.
      Individual user settings can be configured using a PC tool provided by LAPIS.


      Feature 2Equipped with NFC Forum Type3 Tag function

      NFC Forum Type3 Tag v1.0 function

      The power receiving LSI is equipped with NFC Forum Type3 Tag function.
      This function is a ROM function that can read fixed data written in advance in the built-in 496Byte Data Flash in NDEF format* . It is also possible to communicate with an external NFC reader/writer through Tag data.

      NDEF format: NFC Data Exchange Format A data format used for data exchange in NFC.


      Feature 3Driven at 5V can mobilize the entire system

      Driven at 5V can mobilize the entire system

      The power transmission LSI has a power supply voltage of 5 V and can be driven by a single power supply.
      Since the power receiving LSI does not require a power supply, it can be configured as a power transmission LSI + power receiving LSI + device to be charged, enabling the entire system to be mobile.


      Feature 4Optimization of power transmitter

      Optimization of power transmitter

      The power transmission LSI has the function of adjusting the power transmission.
      On the other hand, the power receiving LSI uses the built-in ADC to determine the excess or shortage of power supply based on the voltage after rectification and the unnecessary current flowing through the built-in shunt regulator.
      And notifies the information to the power transmission LSI, which can eliminate unnecessary power transmission and optimize the power transmission.


      Feature 5High-level safety by the detection function of foreign object and the dropout of the device

      High-level safety by the detection function of foreign object and the dropout of the device

      The power transmission LSI uses a built-in 10-bit ADC to detect changes in the power transmission current, detects it as a foreign object, and stops the wireless charging. It detects metal pieces and IC cards to prevent heat generation and destruction.
      It also detects when the receiving LSI is out of the feeding range to prevent unwanted power transmission.

      Applications

      Application of LAPIS Technology's 13.56MHz wireless charging LSI

      The 13.56MHz wireless charging LSI from LAPIS Technology is ideal for building wireless power supply systems for small devices such as electronic pens and hearing aids that have rechargeable batteries of around 200mAh.