P9235A-R Datasheet, PDF (1/23 Pages) Integrated Device Technology – Wireless Power Transmitter

Wireless Power Transmitter for ≤3W
Applications
P9235A-R
Datasheet
Description
The P9235A-R is a 3W, magnetic induction, wireless power
transmitter for low power applications. The system-on-chip
operates with an input voltage range of 4.5 – 5.5V while
integrating micro-controller, voltage regulation, over-current
protection, full bridge power stage drivers and on-chip
simultaneous voltage and current demodulation.
The transmitter includes industry-leading 32bit ARM® Cortex®-
M0 processor offering a high level of programmability, while
consuming extremely low standby power. The device features
two LED outputs with pre-defined user programmable blinking
patterns, buzzer and programmable over-current protection
supporting wide range of applications. The I²C serial
communication allows the user to read back information such as
voltage, current, frequency and fault conditions. Together with the
P9027LP-R receiver, the P9235A-R is a complete wireless power
system solution.
The P9235A-R is available in a Pb-free, space-saving VFQFN 5
mm X 5 mm, 40 pin package. The product is rated over an
operating temperature range of -40ºC to +85ºC.
Typical Applications
 Smart Watches
 Headsets
 Health and Fitness monitors
 Portable Medical applications
Features
 VIN range: 4.5 - 5.5 V
 Supports receiver for up to 3W of power transfer
 80% peak efficiency (when coupled with P9027LP receiver)
 Integrated power stage drivers
 Low standby power
 Simultaneous voltage and current demodulation
 Integrated 32 bit ARM® Cortex®-M0 Processor
 Supports I²C interface for field programmability
 Programmable current limit
 Over-Current and Over-Temperature protection
 Active low enable pin for electrical on/off
 Pre-defined programmable LED patterns
 Dedicated remote temperature sensing
 -40ºC to +85ºC ambient operating temperature range
 VFQFN 5mm X 5mm, 40 pin package
Figure 1. Application Diagram
LDO33
VIN
4.5V -5.5V
RSENSE
Off
On
EN
LED_RED
LED_GRN
VO_5
Discrete
R,C Filter 1
SW_B
VIN_LDO
LDO33
P9235A-R
GH_BRG1
GL_BRG1
GH_BRG2
GL_BRG2
V_BRIDGE
LDO18
Resistor
dividers
LDO18
ILIM
LED_PAT
RSVD1
RSVD2
VSNS
SDA
SCL
TS
Discrete
R,C Filter 2
LDO18
© 2016 Integrated Device Technology, Inc
1
May 17, 2016