ML7661-311GD
13.56MHz Wireless Charging Power Transmitter (for REF66003, 300mW, WQFN)
ML7661-311GD
13.56MHz Wireless Charging Power Transmitter (for REF66003, 300mW, WQFN)
ML7661 is a 13.56MHz wireless power transmission LSI. ML7661 can be combined with ML7660 to create a wireless power supply system that can supply up to 1W of power to the ML7660. ML7661 has a communication command generation function for communicating with the ML7660, a variable power transmission control function for optimizing the power transmission, and wireless power transmission functions such as detection of foreign objects while the ML7660 is attached, detached, or powered, all in a 6mm square 40-pin WQFN package. It is the ideal LSI for wireless power supply of small devices. The operating voltage is set at 5 V, allowing the device to be powered by a USB power supply such as a mobile battery. In addition, it has a host interface (SPI (peripheral) / I²C (target)) function and a serial interface (SPI (controller) / I²C (target)) function. The serial interface (SPI (controller) / I²C (controller) / UART) function enables configuration data update and various sensor controls from an external microcontroller.
Product Detail
Specifications:
Usage
Battery Charging Control
Function Overview
Secondary Battery Charging Control
Transmitter/Receiver
Power Transmitter
Chipset
ML7660-311HB
RF Operating Frequency [MHz]
13.56
Data Flash
2KB
Function
Transmission Power Adjust Control
Host Interface
Selectable: 1ch SPI (Peripheral) or I²C (Target)
ADC (method)
10bit (SA type)×6ch
External Clock Frequency [MHz]
13.56 (Generated by a magnetic field)
Supply Voltage[V]
4.5 to 5.5
Operating Temperature [℃]
-40 to 85
Package Size [mm]
6.0x6.0 (t=0.8)
Halogen Free Support ?
Yes
Development Support
-
- Reference Design
- REF66003
ML7661-EVK-001 is equipped with the power transmitting side LSI ML7661, and ML7660-EVK-001 is equipped with the power receiving side LSI ML7660. By facing the antenna, it is possible to output a power supply of 300mW. Wireless battery charging can be achieved in a small space.
"LAPIS TECHNOLOGY™" is a trademark or a registered trademark of ROHM Co., Ltd.