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BQ51020

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5-W (WPC) single-Chip Wireless power Receiver

Product details

Number of series cells 2 Charge current (max) (A) 11 Vin (max) (V) 22 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 7 Battery charge voltage (max) (V) 9.54 Absolute max Vin (max) (V) 40 Control topology Linear Control interface I2C Features Input OVP, Integrated ADC Vin (min) (V) 6 Rating Catalog Operating temperature range (°C) -40 to 125
Number of series cells 2 Charge current (max) (A) 11 Vin (max) (V) 22 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 7 Battery charge voltage (max) (V) 9.54 Absolute max Vin (max) (V) 40 Control topology Linear Control interface I2C Features Input OVP, Integrated ADC Vin (min) (V) 6 Rating Catalog Operating temperature range (°C) -40 to 125
DSBGA (YFP) 42 7.7999999999999988 mm² 2.5999999999999996 x 3
  • 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
  • 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

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.

For all available packages, see the orderable addendum at the end of the data sheet.

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.

For all available packages, see the orderable addendum at the end of the data sheet.

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Technical documentation

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Type Title Date
* Data sheet bq5102x 5-W (WPC) Single-Chip Wireless Power Receiver datasheet 08 May 2014
Application note Test and Troubleshoot a Wireless Power Receiver 06 Aug 2014
User guide bq51020 5-W (WPC) Integrated Wireless Receiver Power Supply 23 Apr 2014
Application note Layout Guidelines for Wireless Power Receiver (Generation 3 28 Mar 2014

Design & development

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Calculation tool

SLUC577 Foreign Object Detection (FOD) Calibration/Tuning Tool

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Supported products & hardware

Supported products & hardware

Products
Battery charger ICs
BQ51003 BQ51003 Wireless power Receiver BQ51010B Highly integrated Wireless Receiver Qi (WPC V1.1) Compliant power Supply BQ51013B WPC 1.1 Compatible Fully integrated Wireless power Receiver IC BQ51020 5-W (WPC) single-Chip Wireless power Receiver BQ51021 5-W (WPC) single-Chip Wireless power Receiver with I2C BQ51025 bq51025 10-W WPC Compliant Single Chip Wireless Power Receiver BQ51050B Qi (WPC) Compliant Highly integrated Secondary-Side Direct Lithium Ion charger. BQ51051B integrated Wireless power Li-ion charger Receiver, Qi (WPC) Compliant BQ51052B BQ51052B integrated Wireless power Li-ion charger Receiver, Qi (WPC) Compliant BQ51221 Dual mode 5-W (WPC and PMA) single Chip Wireless power Receiver BQ51222 Dual mode 5-W (WPC v1.2 and PMA) single Chip Wireless power Receiver
Gerber file

bq51x2x Gerber

SLUC560.ZIP (366 KB)
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DSBGA (YFP) 42 View options

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