P9038 Datasheet, PDF (1/18 Pages) Integrated Device Technology – 8W, Qi-compliant, Wireless Power Transmitter

8W, Qi-compliant, Wireless Power Transmitter
with Integrated Full Bridge Inverter
P9038
DATASHEET
Features
• 4.5V to 6.9V input operating voltage range, supporting:
• USB or AC adapter
• USB dedicated charger port (DCP) detection
• WPC-1.2.2 compliant for A5 or A11-type coils
• Integrated, high-efficiency power stage with low RDS(ON)
• Integrated foreign object detection & current sense
• Excellent EMI performance eliminates need for EMI filter
• Supports up to 8W power transfer to the receiver
• Demodulates and Decodes Communication Packets from
WPC-compliant Receivers
• I²C Interface for EEPROM access
• Programmable input over-voltage protection
• Programmable soft start
• Current limit and over-temperature protection
• -40° to +85°C temperature range
• 7 x 7 mm 56-VFQFPN package
Applications
• Furniture
• PC peripherals
• Rugged electronic gear
• Small appliances
• Battery-powered electronics
Description
The P9038 is a WPC-compliant Wireless Power Transmitter
for A5 and A11 designs operating from 5V supplies
conforming with WPC Specification 1.2.2. Operating in the
WPC-compliant mode, the integrated full-bridge inverter
supports 8W power transfer utilizing the P902x Receiver
family, and ensures efficient switching with EMI/RFI emissions
that are better than the requirements of the WPC
specification.
To safeguard the device and the system under fault
conditions, the P9038 offers resistor programmable Foreign
Object Detection, built-in Over-Current protection, and
programmable Over-Voltage / Over-Temperature protection.
This transmitter is extremely easy to use and provides a
complete WPC-compliant solution with minimum external
parts count, requiring significantly less board space and lower
total solution cost than competing products.
The P9038 is available in a compact 7 x 7 mm VFQFPN
package, and it is rated for -40° to +85°C temperature range.
Typical Application Circuit
EN
CIN
RSNS
RFILT_N ^CFILT_N
CFILT_CM
RFILT_P CFILT_P
CIN
EN
P9038
IN
ISNSN_IN
BST2
SW2
ISNSP_IN
REG_IN
SW1
BST1
GPIO_1
ADAPTOR
LDO5V
EEPROM
A0 VCC
A1 WP
A2 SCL
VSS SDA
WP
RGATE
DP
DM
GATE
CGATE
VBUS_SNS
DP
DM
ISNS
HPF
SHIELD1
SHIELD2
CLDO5V
RESET
LDO5V
LDO2P5V_IN
ISNS_AVG
VSNS_AVG
INV5V_IN
OVP_SEL
SCL
SDA
RESET
LDO2P5V
GPIO_0 - GPIO_6
GND
P9038 August 1, 2016
1
CBST2
CSW2
VO
COUT
LCTX
CBST1 Z1
CSW1
Z2
CHPF
CISNS_1
RSHLD
=10MO
CISNS_AVG
CVSNS_AVG
CLDO2P5V
LDO2P5V
GPIO_6
©2016 Integrated Device Technology, Inc.