Industry’s First Multi-Mode WPC
Compliant Wireless Power Receiver IC
© 2013 Integrated Device Technology, Inc.
Features
Single-Chip 5W Solution for Wireless Power Consortium
(WPC) “Qi” Compliant Power Receiver
Conforms to WPC Specification Version 1.1
Specifications
Integrated Synchronous Full-Bridge Rectifier
Integrated Synchronous Buck Converter
Embedded MCU, ROM, RAM, & ADC
Integrated USB Adaptor Switch for USB Charging
Closed-Loop Power Transfer Control between Base
Station and Mobile Device
Security and Encryption up to 64 bit
Foreign Object Detection (FOD)
Over-Temperature/Voltage Protection
Compatible with all WPC Receiver Coils Including
Proprietary and PCB-based Coils
Open-Drain LED Indicator Outputs
I
2
C Interface
Applications
WPC-Compliant Wireless Chargers for Mobile
Applications
Mobile and Smart Phones
Tablets, MIDs
Digital Cameras, MP3 Players
Remote Controls
GPS
Description
The IDTP9020 is a highly-integrated single-chip WPC-compliant
wireless power receiver IC. The device receives an AC power
signal from a compatible wireless transmitter and converts it into
a regulated 5V output voltage which can be used to power
devices or supply the charger input in mobile applications. The
IDTP9020 integrates a high-efficiency synchronous full-bridge
rectifier, high-efficiency synchronous buck converter, and control
circuits used to modulate the load to transmit WPC-compliant
message packets to the transmitter station to optimize power
delivery. Power delivery is limited to 5W in accordance with the
Qi specification.
The device includes over-temperature/voltage protection and a
Foreign Object Detection (FOD) method to protect the base
station and mobile device from over-heating in the presence of a
metallic foreign object. Fault conditions associated with power
transfer are managed by the embedded MCU, which also
controls status LEDs to indicate operating and fault modes.
1 u F
I D T P 9 0 2 0
R E C _ O U T
1 1 . 4 u H
1 8 3 n F
2 n F
E N
L D O 2 P 5 V _ I N
1 u F
U S B / A D P _ I N
R E C _ O U T
S C L
S D A
R E S E T
2 2 n F
G P I O _ 0
G P I O _ 1
G P I O _ 2
G P I O _ 3
G P I O _ 4
G P I O _ 5
G P I O _ 6
G P I O _ 6
G P I O _ 5
G P I O _ 4
G P I O _ 3
G P I O _ 2
G P I O _ 1
G P I O _ 0
I N _ P
I N _ P
R E G _ I N
I N _ M
I N _ M
E N
G N D
L D O 2 P 5 V _ I N
U S B _ I N
B U C K 5 V R _ I N
B U C K 5 V R _ I N
S C L
S D A
A G N D
D G N D
R E S E T
A C M _ P
2 2 n F
A C M _ M
3 3 0 n F
Z R E F _ M
3 3 0 n F
Z R E F _ P
R E F G N D
1 0 u F
R E C _ O U T
4 0 u F
1 u F
L D O 5 V
1 u F
L D O 2 P 5 V
4 . 7 u F
1 0 u F
B U C K 5 V R
4 7 n F
4 7 n F
R E C _ O U T
R E C _ O U T
P G N D
L X
L X
L D O 5 V
L D O 2 P 5 V
B U C K 5 V R _ S N S
U S B _ O U T
I S N S
B S T
R E C _ O U T
L X
B U C K 5 V R B U C K 5 V R
I N _ P
I N _ M
B U C K 5 V R _ I N
L D O 5 V
L D O 5 V
1 0 K
1 0 0
1 0 0 K
2 . 7 K 2 . 7 K
1 0 0 n F
5 K
5 K
5 K
5 K
5 K
5 K
Packages: 7mm x 7mm QFN56 (See page 28) and 4.86mm x 4.65mm WLCSP-99 (See page 29)
Ordering information (See page 30)
Mobile Device
Receiver
Output Load
Control System
Power Pick-Up
Comm Cont
Mod
Sensing
Control
Out
PWR
Base Station
Transmitter(s)
Input Power
Control System
Power Generation
Comm
Cont
DeMod
IN
PWR
Sensing
Control
Induction
Load
Reflection
Comm
Control
Wireless
Interface