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Documents bq51050B, bq51051B, bq51052B
SLUSB42F – JULY 2012 – REVISED JUNE 2017 bq5105xB High-Efficiency Qi v1.2-Compliant Wireless Power Receiver
and Battery Charger
1 Features 3 Description The bq5105x device is a high-efficiency, Qi-compliant
wireless power receiver with an integrated Li-Ion/LiPol battery charge controller for portable applications.
The bq5105xB devices provide efficient AC-DC
power conversion, integrates the digital controller
required to comply with Qi v1.2 communication
protocol, and provides all necessary control
algorithms needed for efficient and safe Li-Ion and LiPol battery charging. Together with the bq500212A
transmitter-side controller, the bq5105x enables a
complete wireless power transfer system for direct
battery charger solutions. By using near-field
inductive power transfer, the receiver coil embedded
in the portable device can pick up the power
transmitted by transmitter coil. The AC signal from
the receiver coil is then rectified and conditioned to
apply power directly to the battery. Global feedback …
