ML7661-311GD
Power Transmitter LSIs(13.56MHz Wireless Charge : WQFN, REF66003)

ML7661 is a 13.56MHz wireless power transmitter LSI. ML7661 realizes a wireless power transfer system by combining with the wireless power receiver LSI ML7660, and can output power for ML7660 to supply 1W to charging device. ML7661 has a communication command generation function for communicating with ML7660, a function for variably controlling the transmission amount to optimize the transmission power, and a function to detect abnormalities when ML7660 is attached/detached or power is transmitted. All of these functions are included in the 40-pin WQFN package (6.0 mm square), and ML7661 is ideal for wireless power transfer of small devices. In addition, the operating voltage is 5V, and it can be driven from a USB power source such as a mobile battery. Furthermore, ML7661 is equipped with a host interface (SPI / I²C slave) function, and it is possible to update configuration data from an external MCU.