ML7660 Datasheet | LAPIS

Overview ML7660 is a 13.56MHz wireless power receiver LSI. ML7660 realizes a wireless power transfer system by bining with the wireless power transmitter LSI ML7661, and can output 1W to a charging device. ML7660 is equipped with a 10-bit SA-ADC for measuring the power charging status and a wireless power charging control function in a 2.28 mm x 2.61 mm (equivalent to 2.44 mm square) WL-CSP chip or a 5 mm square 32-pin WQFN package. This LSI is ideal for wireless power transfer of small devices. Furthermore, ML7660 is equipped with a host interface (SPI / I2C slave) function, and it is possible to update configuration data from an external MCU. 2. Features - Charging control ― Built-in Charging control circuit Built-in setting of output voltage by shunt regulator Voltage/Current supply ON/OFF function to external charging IC 1W receiving available ― Abnormally detection function by software and hardware control ― Abnormally notification function to the power transmission side - munication control ― munication speed: 212kbps, 424kbps ― 2Kbyte data flash for storing user data - Host interface ― 1ch Serial interface (Slave), and selectable from SPI or I2C - Package ― WL-CSP30pin (S-UFLGA30-2.28x2.61-0.40-W) ― WQFN32pin (P-WQFN32-0505-0.50-A63) - Product name ML7660-310GD (WQFN, battery-charging) ML7660-310HB (WL-CSP, battery-charging) ML7660-311HB (WL-CSP, REF66003) ML7660-202GD (WQFN, battery-less) - Applications NFC charging devices, e.g. - smart watches, fitness trackers and smart wristbands - smart rings - smart glasses - true wireless stereos and hearing aids - stylus pens, wireless mouses and wireless keyboads - electric toothbrushes - beauty home appliances - personal health care devices - battery packs - rice cooker (for battery-less) 1 / 16 3. Block Diagram FEDL-7660-07 ML7660 RESET_N INTERFACE RFDET POWER CHARGE DEBUG ERROR SCL_S/SCLK_S SDA_S/SDI_S SDO_S SCS_S INT_S AIN1 Control Logic SRAM Host Interface (I2C Slave) (SPI Slave) 10bit-ADC FLASH Test...