ML7660_61
13.56MHz(NFC)wireless charging chipset supporting up to 1W power supply " ML7661 / ML7660 "
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ML7661
Power transmission(TX)LSI
ML7660
Power receiving(RX)LSI
13.56MHz(NFC)wireless charging chip set supporting up to 1W power transfer
"ML7661 / ML7660"
Features of ML7660 / ML7661 3 features
Feature.1
13.56MHz wireless charging,capable of supplying a battery with a capacity of 200mAh (at 1C* charge)
By increasing the power supply capacity to 1W(five times that of the conventional product),it is possible to charge wristband blood pressure monitors with large battery capacity, and to charge smartwatches and hearing aids at high speed
Comparison of"charging time to 90% battery capacity"between USB charging and 13.56MHz wireless 1C* charging
Within a battery capacity of 200mAh.Charging time is almost the same between wireless charging and USB cable charging.
Using the 13.56MHz frequency band,the antenna size can be reduced by 83% compared to Qi(Qi)*(110kHz to 205kHz),a common feeding method used in smartphones.
Or,the antenna size can be reduced by 36% compared to discrete component configurations(several hundred kHz),allowing it to be mounted on smaller devices.
Term Description
- 1C :
Current to fully charge a rechargeable battery in one hour - Qi :
An international standard for wireless charging developed by the Wireless Power Consortium. It is used in wireless charging for smartphones.
Feature.2
Microcomputer-less design contributes to miniaturization by reducing the number of parts
Power supply control can be achieved without a microcontroller by simply supplying power.
This not only eliminates the need for software development for the microcontroller but also contributes to miniaturization by reducing the mounting space for the microcontroller.
The addition of a new SPI interface enables microcontroller-less control of digital sensors and other devices with SPI interfaces.
Feature.3
Control and monitor rotating equipment by using both power supply and high-speed data communication.
Applications
Ultra-small devices with a battery capacity of 200mAh or less,devices that combine power supply and high-speed data communication
Specifications
“ML7661”13.56MHz(NFC)power transmission LSI
One single chip can contain all the functions necessary for power transmission
- Wireless charging protocol auto-run
- Transmitter output level setting
- Detection of the dropout of the power receiver device
- Detection of foreign objects between the power transmitter and receiver
Item | ML7661 |
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Date Flash | 496Byte |
Operating Frequency | 13.56MHz |
Operating Voltage | 5V |
I/F | SPI × 1、I2C × 1、UART × 1 |
Operating Temperature | -40°C to +85°C |
Package | P-WQFN40-0606-0.50 (6mm × 6mm 0.5mm pitch) |
"ML7660"13.56MHz(NFC)power receiving LSI
Power receiver and Tag function integrated into one chip
- 1W, wireless charging efficiency 50% Output
- Wireless charging protocol auto-run
- Monitoring electric current, voltage, temperature
- NFC Forum Type3 TAG Function
Item | ML7660 |
---|---|
Date Flash | 496Byte |
Operating Frequency | 13.56MHz |
Power Supply | Operating temperature |
I/F | NFC Forum Type3 Tag v1.0 SPI × 1、I2C × 1、UART × 1 |
Charging Control | Power receiver / rectifier |
ADC (Method) | 10bit (SA type) |
Operating Temperature | -40°C to +85°C |
Package | WQFN32 (5mm × 5mm 0.5mm pitch) WLCSP30 (2.28mm × 2.61mm 0.4mm pitch) |
Evaluation
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Data sheet
Other documents can be downloaded from the technical information site for engineers.
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LSI sample
Now shipping in mass production
To purchase, please contact us using the email form below.
Videos
Videos related to 13.56MHz wireless charging
Introducing the ML763x/ML766x,
a 13.56HMz wireless charging LSI solution.
Digest Version : Wireless Charging LSI Seminar.:Japanese
2018,ET Expo Engineering Presentations.
13.56MHz wireless charging chipset ideal for wearable devices.:Japanese
Introducing the ML763x/ML766x,
a 13.56HMz wireless charging LSI solution.
Digest Version : Wireless Charging LSI Seminar.:Japanese
2018,ET Expo Engineering Presentations.
13.56MHz wireless charging chipset ideal for wearable devices.:Japanese
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