1 Features
1• Integrated Wireless Power Supply Receiver
Solution With a 7-V Regulated Supply
– 93% Overall Peak AC-DC Efficiency
– Full Synchronous Rectifier
– WPC v1.1 Compliant Communication Control
– Output Voltage Conditioning
– Only IC Required Between RX Coil and 7-V
Output
• WPC v1.1 Compliant (FOD Enabled) Highly
Accurate Current Sense
• Dynamic Rectifier Control for Improved Load
Transient Response
• Dynamic Efficiency Scaling for Optimized
Performance Over Wide Range of Output Power
• Adaptive Communication Limit for Robust
Communication
• Supports 20-V Maximum Input
• Low-power Dissipative Rectifier Overvoltage
Clamp (VOVP = 15 V)
• Thermal Shutdown
• Multifunction NTC and Control Pin for
Temperature Monitoring, Charge Complete and
Fault Host Control

2 Applications
• WPC v1.1 Compliant Receivers
• Cell Phones and Smart Phones
• Headsets
• Digital Cameras
• Portable Media Players
• Hand-Held Devices

3 Description
The bq51010B is a family of advanced, flexible,
secondary-side devices for wireless power transfer in
portable applications. The bq51010B devices provide
the AC-DC power conversion and regulation while
integrating the digital control required to comply with
the Qi v1.1 communication protocol. Together with
the bq50xxx primary-side controller, the bq51010B
enables a complete contact-less power transfer
system for a wireless power supply solution. Global
feedback is established from the secondary to the
primary to control the power transfer process using
the Qi v1.1 protocol.
The bq51010B devices integrate a low resistance
synchronous rectifier, low-dropout regulator, digital
control, and accurate voltage and current loops to
ensure high efficiency and low power dissipation.
The bq51010B also includes a digital controller that
can calculate the amount of power received by the
mobile device within the limits set by the WPC v1.1
standard. The controller will then communicate this
information to the transmitter to allow the transmitter
to determine if a foreign object is present within the
magnetic interface and introduces a higher level of
safety within magnetic field. This Foreign Object
Detection (FOD) method is part of the requirements
under the WPC v1.1 specification.