Overview
Description
The P9222-R is an integrated single-chip wireless power receiver IC (Rx) for up to 5W applications. The P9222-R is highly efficient at light loads and very well-suited for low-power applications such as earbud case charging. A unique Ping detect feature gives the user an early indication of the wireless charger connection and improves thermal performance at the end of complete battery charging. A low undervoltage lockout (UVLO) threshold allows the receiver to start up even with a weaker digital ping strength signal from a transmitter over an extended area.
The device includes over-temperature and undervoltage/overvoltage protection. The internal overvoltage clamping protects the rectifier output from rising above the overvoltage level when the receiver is quickly moved from a low-coupling position to a high-coupling position. The integrated 32-bit Arm® Cortex®-M0 processor offers a high level of programmability and design parameters that can be easily configured through the I²C interface or an external EEPROM.
The P9222-R is available in a RoHS ultra-small WLCSP-40 package and it is rated for a -40 °C to +85 °C ambient operating temperature range.
Features
- Ultra-compact, efficient wireless power receiver for up to 5W applications
- WPC 1.2 Qi Baseline Power Profile (BPP) compatible
- Optimized light load efficiency for low-power applications
- Ping detection for reduced power consumption at the end of charging
- Low undervoltage lockout (UVLO) for low-voltage start-up for faster connections over an extended area
- ASK and FSK modulation/demodulation for bidirectional communication: Rx-to-Tx and Tx-to-Rx
- Easy configuration of design parameters through I²C interface on an external EEPROM
- ADC input to measure battery voltage or system voltage
- Embedded 32-bit Arm Cortex-M0 processor
- Internal overvoltage clamping
- Low standby and operating mode power consumption
- High-performance low dropout (LDO) regulator with low RDS(on) and programmable current limiting
- Supports I²C slave/master mode
- 40-WLCSP: 5 x 8 ball array, 2.28mm x 3.38mm, 0.4mm pitch
Comparison
Applications
Design & Development
Support
Support Communities
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Support Communities
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P9222-R pins application (CMA/CMB)
Hi all, I'm trying to simplify our current P9222-R usage in terms of required components and by looking through docs I can see two references like this: CMA: High-voltage, open-drain output from the modulation FETs. By default, CMA capacitor is not used for communication. This pin ...
Oct 12, 2020 -
P9242-R3 --> P9222 proprietary data transfer
Hello! We've got a WP15WBD-RK Bi-directional Data Transfer Evaluation Kit with P9242-R3 power transmitter. Our engineers have designed a custom PCB equipped with wireless power receiver P9222-R. By programming P9222 registers I'm able to send 4 proprietary bytes to P9242-R3, the power transmitter ...
Jan 17, 2023 -
P9235A-RB EVK Wireless Power Transmitter "Power Limit" status
I am using the P9235A-RB-EVK and the P9222-R-EVK to evaluate a non-standard coil configuration that results in an overall efficiency of 62% after tuning. I have it working pretty well, but when the load increases to where the input power is 4.0W to 4 ...
Oct 1, 2021