Description
The P9221-R is a high-efficiency, Qi-compliant wireless power
receiver targeted for applications up to 15W. Using magnetic inductive charging technology, the receiver converts an AC power signal
from a resonant tank to a programmable regulated 9V or 12V DC
output voltage. The integrated, low RDSON synchronous rectifier
and ultra-low dropout linear (LDO) regulator offer high efficiency,
making the product ideally suited for battery-operated applications.
The P9221-R includes an industry-leading 32 bit ARM® Cortex®-
M0 microprocessor offering a high level of programmability. In
addition, the P9221-R features a programmable current limit and a
patented over-voltage protection scheme eliminating the need for
additional capacitors generally used by receivers and minimizing
the external component count and cost. Together with IDT’s
P9242-R transmitter (Tx), the P9221-R is a complete wireless
power system solution for power applications up to 15W.
The P9221-R is available in a 52-WLCSP package, and it is rated
for a 0 to 85°C ambient operating temperature range.

Features
 Single-chip solution supporting up to 15W applications
 WPC-1.2.3 compliant
 Patented over-voltage protection clamp eliminating external
capacitors
 87% peak DC-to-DC efficiency with P9242-R Tx
 Full synchronous rectifier with low RDSON switches
 Programmable output voltage: 9V or 12V
 User-programmable foreign-object detection (FOD)
 Embedded 32-bit ARM® Cortex®-M0 processor
 Dedicated remote temperature sensing
 Power transfer LED indicator
 Programmable current limit
 Active-low enable pin for electrical on/off
 Open-drain interrupt flag
 Supports I2C interface
 0 to +85°C ambient operating temperature range
 52-WLCSP (2.64  3.94 mm; 0.4mm pitch)