Wireless Power Receiver for P9222-R Low Power Applications Datasheet Description Features The P9222-R is an integrated single-chip wireless power receiver Ultra-compact, efficient wireless power receiver for up to IC (Rx) for up to 5W applications. The device receives an AC power 5W applications signal from a wireless power transmitter, such as the P9235A-RB WPC 1.2.4 Qi Baseline Power Profile (BPP) compatible WPC Qi BPP Wireless Transmitter IC, and converts it to a rectified Optimized light load efficiency for low power applications output voltage, which can be used to power devices or supply the Ping detection for reduced power consumption at end of battery charger input in a wide range of wireless power charging applications. The receiver (Rx) integrates a high-efficiency synchronous full bridge rectifier (SFBR) and control circuits used to Low under-voltage lockout (UVLO) for low voltage start-up for send message packets to the transmitter (Tx) in order to optimize faster connections over an extended area power delivery. ASK and FSK modulation/demodulation for Bi-directional Communication: Rx-to-Tx and Tx-to-Rx The P9222-R is highly efficient at light loads and very well-suited 2 for low-power applications such as earbuds case charging. A Easy configuration of design parameters through I C interface unique Ping detect feature gives the user an early indication of the on an external EEPROM wireless charger connection and improves thermal performance at ADC input to measure battery voltage or system voltage the end of complete battery charging. Low under-voltage lockout Embedded 32-bit ARM Cortex -M0 processor (UVLO) threshold allows the receiver to start up even with a weaker Internal over-voltage clamping digital ping strength signal from a transmitter over an extended area. Low standby and operating mode power consumption High performance low dropout (LDO) regulator with low The device includes over-temperature and under/over-voltage RDS(on) and programmable current limiting protection. The internal over-voltage clamping protects the rectifier 2 output from rising above the overvoltage level when the receiver is Supports I C slave/master mode quickly moved from a low-coupling position to a high-coupling 40-WLCSP: 5 8 ball array, 2.28 3.38 mm, 0.4mm pitch position. The integrated 32-bit ARM Cortex -M0 processor (trademark of ARM, Ltd.) offers a high level of programmability and 2 design parameters that can be easily configured through the I C Block Diagram interface or an external EEPROM. Figure 1. Simplified Block Diagram The P9222-R is available in a RoHS ultra-small WLCSP-40 package and it is rated for a 0 to 85C ambient operating PDETB temperature range. VOUT DC Output PDET RC CMA Typical Applications SCL CM1 OD0 EEPROM or AP SDA (Optional) OD1 Wireless power solutions for mobile solutions including: BST1 OD2 ADC IN CS Wireless earbuds case charging AC1 /EN /Enable Wearables and fitness trackers CD /INT Rx P9222-R Coil Mobile devices GP0 External Thermistor AC2 Hearing aids case charging ADC IN GP1 BST2 Connect to LDO1P8 GP2 for External EEPROM CM2 CMB LDO5P0 LDO5P0 LDO1P8 VRECT LDO1P8 PGND 2019 Integrated Device Technology, Inc. 1 September 27, 2019 P9222-R Datasheet Figure 2. P9222-R Block and Application Diagram VOUT VRECT Output C VRECT C OU TPUT Output OVP Protection Current LDO Driver & CMA Sense CCMA Control Communication CM1 Drivers CCM1 IOUTSNS C S AC1 Internal BST1 CBST1 Frequency Temperature L RX Detector C Sense D BST2 C BST2 AC2 CM2 CCM2 Synchronous 12 Bit CMB OD2 Rectifier Control ADC C IOUTSNS CMB Logic PGND VRECT C LDO5P0 Ping Analog Core: PDETB Detection LDO5P0 Bias Circuitry OSC PDET RC CLDO1P8 LDO1P8 LDO 1.8V LDO 5V RPDET R C PDET C Charge Pumps Analog to Digital Interface PGND OD0 SCL I2C GPIO0 ARM M0 Interface OD1 Microprocessor SDA GP0 GP1 /EN /EN 2kB RAM GP2 GPOD /INT /INT 16 kB OTP Timers & Interface OD2 Counters 2019 Integrated Device Technology, Inc. 2 September 27, 2019 ADC MUX 1.8V GPIO Interface