DRAFT
Dual-Mode WPC/PMA 5 Watt
Wireless Power Receiver IC
P9028AC
Features
Product Datasheet
Introduction
. Single Chip Receiver (Rx) Solution
. WPC v1.1.2 Compliant
The P9028AC is an integrated single-chip, dual-mode WPC
v1.1.2-compliant and PMA v1.0-compatible, wireless power
receiver IC with advanced WPC v1.1.2 Foreign Object
Detection (FOD). The device operates with an AC power
signal from a resonant tank and converts it into a regulated
5V output voltage, which can be used to supply power to a
mobile application. It includes a high efficiency Synchronous
Full Bridge Rectifier and 5V tracking LDO output stage. The
P9028AC dual-mode operation automatically detects the
transmitter type and initiates either WPC or PMA AC
modulation communication protocols with optimal efficiency.
. PMA v1, v3 Pre-Release Compatible with Options
. Advanced WPC v1.1.2 Foreign Object Detection (FOD)
. Programmable FOD setting via external resistor and
I2C registers
. Programmable current limit via external resistor
. Integrated Full-Bridge Synchronous Rectifier
. Integrated 5V @ 1A LDO Regulator Output
. Closed-loop power transfer control between TX and
RX
. I2C interface provides VRECT, Iout and switching
frequency values
. Open-Drain LED Indicator Output
The device includes the control circuit required to modulate
the load to transmit WPC-compliant or PMA-compatible
message packets to the base station. It uses minimal
external components to reduce overall solution area.
. Over-Temperature/Voltage/Current Protection
The P9028AC employs advanced programmable WPC FOD
techniques to detect foreign metallic objects placed on the
transmitter base station derived from a transmitted and
received power transfer algorithm.
Applications
. WPC-Compliant and PMA-Compatible Wireless
Chargers for Mobile Applications.
. Cellular Mobile Phones
The P9028AC is available in a 36 ball 3mm X 3mm WLCSP
or 32 pin 5mm X 5mm TQFN package.
. Tablets, DSC, DVC and Handhelds
Typical Application Circuit
Packages: WLCSP-36 6x6 balls (3.06mm x 2.9mm) (See page 33)
TQFN-32 5x5mm (See page 35)
Ordering information: (See page 38)
Revision 1.0.3
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© 2015 Integrated Device Technology, Inc.