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
● Green product and no Sb/Br
