1 Features

1• Robust 5-W Solution With 50% Lower Losses for

Improved Thermals

– Inductorless Receiver for Lowest Height Profile

Solution

– Adjustable Output Voltage (4.5 to 8 V) for Coil

and Thermal Optimization

– Fully Synchronous Rectifier With 96%

Efficiency

– 97% Efficient Post Regulator

– 79% System Efficiency at 5 W

• WPC v1.1 Compliant Communication

• Patented Transmitter Pad Detect Function

Improves User Experience

• Alignment Feature Through I2C Allows for User

Training to Find Best Position on Surface of TX

2 Applications

• Smart Phones, Tablets, and Headsets

• Wi-Fi Hotspots

• Power Banks

• Other Handheld Devices

3 Description

The bq5102x device is a fully contained wireless

power receiver capable of operating with the WPC

v1.1 protocol which allows a wireless power system

to deliver up to 5 W to the system when used with a

Qi inductive transmitter. The bq5102x device provides

a single device power conversion (rectification and

regulation) as well as the digital control and

communication for WPC specification. With market-

leading efficiency and adjustable output voltage, the bq5102x device allows for unparalleled efficiency and

system optimization. I2C also allows system

designers to implement interesting new features such

as aligning a receiver on the transmitter surface, or detecting foreign objects on the receiver. The receiver

allows for synchronous rectification, regulation and

control and communication to all exist in a market

leading form factor, efficiency, and solution size.