Datasheet
AC to DC
Voltage
Conditioning
Controller
RectificationDrivers RectificationDrivers Load
Controller
V/I
Sense
Power
Transmitter Receiver
bqTESLA150LP: Receiver Integration 1/5 of the Area Savings
th
bq5101x
bq500210
Communication
bq51011
bq51013
www.ti.com
SLVSAT9D –APRIL 2011–REVISED AUGUST 2012
INTEGRATED WIRELESS POWER SUPPLY RECEIVER,
Qi (WIRELESS POWER CONSORTIUM) COMPLIANT
Check for Samples: bq51011, bq51013
1
FEATURES
• Integrated Wireless Power Receiver Solution • Digital Cameras
with a 5V Regulated Supply
• Portable Media Players
– 93% Overall Peak AC-DC Efficiency
• Hand-held Devices
– Full Synchronous Rectifier
DESCRIPTION
– WPC v1.0 Compliant Communication
The bq5101x is an advanced, integrated, receiver IC
Control
for wireless power transfer in portable applications.
– Output Voltage Conditioning
The device provides the AC/DC power conversion
– Only IC Required Between RX coil and 5V
while integrating the digital control required to comply
DC Output Voltage
with the Qi v1.0 communication protocol. Together
with the bq500210 transmitter controller, the bq5101x
• Dynamic Rectifier Control for Improved Load
enables a complete contact-less power transfer
Transient Response
system for a wireless power supply solution. By
• Supports 20-V Maximum Input
utilizing near-field inductive power transfer, the
• Low-power Dissipative Rectifier Overvoltage
receiver coil embedded in the portable device
Clamp (V
OVP
= 15V)
receives the power transmitted by the transmitter coil
via mutually coupled inductors. The AC signal from
• Thermal Shutdown
the receiver coil is then rectified and regulated to be
• Single NTC/Control Pin for Optimal Safety and
used as a power supply for down-system electronics.
I/O Between Host
Global feedback is established from the secondary to
• Stand-alone Digital Controller
the transmitter in order to stabilize the power transfer
process via back-scatter modulation. This feedback is
• 1.9 x 3mm DSBG or 4.5 x 3.5mm QFN Package
established by using the Qi v1.0 communication
protocol supporting up to 5W applications.
APPLICATIONS
The device integrates a low-impedance full
• WPC Compliant Receivers
synchronous rectifier, low-dropout regulator, digital
• Cell Phones, Smart Phones
control, and accurate voltage and current loops. The
• Headsets
entire power stage (rectifier and LDO) utilize low
resistive NMOS FET’s to ensures high efficiency and
low power dissipation.
Figure 1. Wireless Power Consortium (WPC or Qi) Inductive Power System
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2011–2012, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.