WPC 1.3 compatible fully integrated wireless power receiver IC

The BQ51013C device is a single-chip, advanced,

flexible, secondary-side device for wireless power transfer in portable applications

capable of providing up to 5W. The BQ51013C devices provide the receiver (RX)

AC-to-DC power conversion and regulation while integrating the digital control

required to comply with the Wireless Power Consortium (WPC) Qi

v1.3

communication protocol. Together with the BQ500212A primary-side controller (or

other Qi transmitter), the BQ51013C enables a complete contactless 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

v1.3

protocol.

The BQ51013C integrates a low-resistance

synchronous rectifier, low-dropout regulator (LDO), digital control, and accurate

voltage and current loops to ensure high efficiency and low power dissipation.

The BQ51013C also includes a digital controller

that calculates the amount of power received by

the mobile device within the limits set by the WPC

v1.3

standard. The controller then communicates this

information to the transmitter (TX) to allow the

TX 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

v1.3

specification.