Overview
Description
The P9221-R3 is a high-efficiency 15W magnetic induction wireless power receiver with in-band, bidirectional data communication with no additional circuitry. The communication channel can be used for proprietary device authentication and secure system data transfer.
The P9221-R3 integrates a 32-bit Arm® Cortex®-M0 processor, low RDS(ON) synchronous rectifier, and ultra-low dropout regulator making it ideal for high-efficiency, space-constrained receiver applications. The device features a programmable output voltage, current limitation, and foreign-object detection (FOD) settings. An I²C serial interface allows reading information such as voltage, current, and fault conditions. The device also features a patented over-voltage protection scheme eliminating the need for additional capacitors, which can minimize the external component count and cost. Combined with the P9242-R3 transmitter, the P9221-R3 forms a complete wireless power system solution for 15W applications with bidirectional communication.
The P9221-R3 is provided in a 52-WLCSP package (2.64mm × 3.94mm, 0.4mm pitch), and it is rated for a 0 °C to +85 °C ambient operating temperature range.
Features
- Supports bidirectional data communication
- Enables authentication and system data transfer
- Single-chip solution supporting applications with up to 15W
- Patented over-voltage protection clamp eliminating external capacitors
- 87% peak DC-to-DC efficiency when combined with the P9242-R3
- Proprietary coil alignment guide
- Programmable output voltage and current limit
- Embedded 32-bit Arm® Cortex®-M0 processor
- Dedicated remote temperature sensing
- Standard device compliant with WPC 1.2 specification
- Supports I²C interface
- 0 °C to +85 °C ambient operating temperature range
- 2.64 x 3.94 mm 52-WLCSP package
Comparison
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 1.54 MB | |
| Application Note | PDF 810 KB | |
| Product Change Notice | PDF 752 KB | |
| Application Note | PDF 3.74 MB | |
| White Paper | PDF 627 KB | |
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Design & Development
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P9242-R3 --> P9222 proprietary data transfer
... P9242 datasheet I've found the following (section 9.1): "the P9242-R3 can send only 2 bytes of information at a time and the P9221-R3 can receive only 2 bytes at a time". Is it correct? If this is correct the P9242 is simply unable to send proprietary ...
Jan 17, 2023