BQ51221 Dual Mode 5-W (WPC and PMA) Single Chip Wireless Power Receiver | TI.com

BQ51221 (ACTIVE)

Dual Mode 5-W (WPC and PMA) Single Chip Wireless Power Receiver

 

Description

The bq51221 device is a fully contained wireless power receiver capable of operating in both the WPC and PMA protocols which allows a wireless power system to work with both WPC and PMA inductive charging standards. The bq51221 device provides a single device power conversion (rectification and regulation) as well as the digital control and communication for both standards. It also has autonomous detection of protocol and requires no additional active devices. The bq51221 device complies with the WPC v1.1 and PMA communication protocol. Together with the WPC or a PMA primary-side controller, the bq51221 device enables a complete wireless power transfer system for a wireless power supply solution. The receiver allows for synchronous rectification, regulation and control and communication to all exist in a market-leading form factor, efficiency, and solution size.

Features

  • 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 and PMA Compliant Communication
  • Patented Transmitter Pad Detect Function
    Improves User Experience
  • I2C Communication with Host

Parametrics

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Part number Order Function Features Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
BQ51221 Order now Receiver       Catalog     -40 to 85     DSBGA | 42     See datasheet (DSBGA)    
BQ51003 Order now Receiver       Catalog     -40 to 85     DSBGA | 28     See datasheet (DSBGA)    
BQ51010B Order now Receiver       Catalog     -40 to 85     DSBGA | 28     See datasheet (DSBGA)    
BQ51013B Order now Receiver       Catalog     0 to 125     DSBGA | 28
VQFN | 20    
See datasheet (DSBGA)
20VQFN: 16 mm2: 3.5 x 4.5 (VQFN | 20)    
BQ51020 Order now   I2C     Catalog     -40 to 125     DSBGA | 42     See datasheet (DSBGA)    
BQ51021 Order now Receiver       Catalog     -40 to 125     DSBGA | 42     See datasheet (DSBGA)    
BQ51050B Order now Receiver       Catalog     0 to 125     DSBGA | 28
VQFN | 20    
See datasheet (DSBGA)
20VQFN: 16 mm2: 3.5 x 4.5 (VQFN | 20)    
BQ51222 Order now Receiver       Catalog     -40 to 125     DSBGA | 42     See datasheet (DSBGA)