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Integrated Device Technology Electronic Components Datasheet

P9221-R Datasheet

Wireless Power Receiver

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Wireless Power Receiver
for 15W Applications
P9221-R
Datasheet
Description
The P9221-R is a high-efficiency, Qi-compliant wireless power
receiver targeted for applications up to 15W. Using magnetic induc-
tive 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.
Typical Applications
Mobile phones
Tablets
Accessories
Medical
CS
LS
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)
Typical Application Circuit
BST1
COMM1
AC1
AC2
COMM2
BST2
Programming
Resistors
P9221-R
INT
SDA
SCL
OUT
COUT
© 2017 Integrated Device Technology, Inc.
1
October 10, 2017


Integrated Device Technology Electronic Components Datasheet

P9221-R Datasheet

Wireless Power Receiver

No Preview Available !

P9221-R Datasheet
Contents
1. Pin Assignments...........................................................................................................................................................................................5
2. Pin Descriptions............................................................................................................................................................................................6
3. Absolute Maximum Ratings..........................................................................................................................................................................8
4. Thermal Characteristics................................................................................................................................................................................9
5. Electrical Characteristics ..............................................................................................................................................................................9
6. Typical Performance Characteristics..........................................................................................................................................................12
7. Functional Block Diagram...........................................................................................................................................................................15
8. Theory of Operation....................................................................................................................................................................................16
8.1 LDO Low Dropout Regulators .......................................................................................................................................................16
8.2 Setting the Output Voltage and Reference Q-factor Value VOSET/Q-Fact Pin ............................................................................16
8.3 SINK Pin ..........................................................................................................................................................................................17
8.4 Rectifier Voltage VRECT...............................................................................................................................................................17
8.5 Over-Current Limit ILIM.................................................................................................................................................................17
8.6 Interrupt Function – INT ...................................................................................................................................................................18
8.7 Enable Pin – EN...............................................................................................................................................................................18
8.8 Thermal Protection...........................................................................................................................................................................18
8.9 External Temperature Sensing and End of Charge TS/EOC........................................................................................................18
8.10 Alignment Guide ALIGNX and ALIGNY ........................................................................................................................................18
8.11 Advanced Foreign Object Detection (FOD) .....................................................................................................................................19
8.12 Received Power Packet Offset and Gain Calibration RPPO and RPPG ......................................................................................20
9. Communication Interface............................................................................................................................................................................21
9.1 Modulation/Communication..............................................................................................................................................................21
9.2 Bit Encoding Scheme for ASK .........................................................................................................................................................22
9.3 Byte Encoding for ASK.....................................................................................................................................................................22
9.4 Packet Structure ..............................................................................................................................................................................22
10. WPC Mode Characteristics ........................................................................................................................................................................23
10.1 Selection Phase or Startup ..............................................................................................................................................................23
10.2 Ping Phase (Digital Ping) .................................................................................................................................................................23
10.3 Identification and Configuration Phase ............................................................................................................................................24
10.4 Negotiation Phase............................................................................................................................................................................24
10.5 Calibration Phase.............................................................................................................................................................................24
10.6 Power Transfer Phase .....................................................................................................................................................................24
11. Functional Registers...................................................................................................................................................................................25
12. Application Information ...............................................................................................................................................................................29
12.1 Power Dissipation and Thermal Requirements................................................................................................................................29
12.2 Recommended Coils........................................................................................................................................................................30
12.3 Typical Application Schematic .........................................................................................................................................................31
12.4 Bill of Materials (BOM) .....................................................................................................................................................................32
© 2017 Integrated Device Technology, Inc.
2
October 10, 2017


Part Number P9221-R
Description Wireless Power Receiver
Maker IDT
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P9221-R Datasheet PDF






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