The BQ51003YFPT is a highly integrated Wireless Power Receiver for wireless power transfer in portable applications. The device provides the AC/DC power conversion while integrating the digital control required complying with the Qi v1.1 communication protocol. The BQ51003 enables a complete contact-less power transfer system for a wireless power supply solution. By using near-field inductive power transfer, the receiver coil embedded in the portable device receives the power transmitted by the transmitter coil via mutually coupled inductors. The AC signal from the receiver coil is then rectified and regulated to be used as a power supply for down-system electronics. Global feedback is established from the secondary to the transmitter in order to stabilize the power transfer process via back-scatter modulation. This feedback is established by using the Qi v1.1 communication protocol supporting up to 2.5W applications.
Integrated wireless power supply receiver solution
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 output
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
Thermal shutdown
Multifunction NTC & control pin for temperature monitoring, charge complete & fault host control
(EN)
