Description
The P9221-R3 is a high efficiency 15W magnetic induction wireless
power receiver with in-band, bi-directional 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 bi-directional communication.
TheP9221-R3 is provided in a 52-WLCSPpackage (2.643.94 mm,
0.4mm pitch), and it is rated for a 0 to 85°C ambient operating temperature range.

Features
 Supports bi-directional 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 IDT
P9242-R3
 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 to +85°C ambient operating temperature range
 WLCSP 2.64  3.94 mm, 52-WLCSP package