SLUSBB8A December   2012  – June 2016

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Tables
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
      1. 8.1.1 A Brief Description of the Wireless System
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Qi Wireless Power System and bq51010B Power Transfer Flow Diagrams
      2. 8.3.2  Dynamic Rectifier Control
      3. 8.3.3  Dynamic Efficiency Scaling
      4. 8.3.4  RILIM Calculations
      5. 8.3.5  Input Overvoltage
      6. 8.3.6  Adapter Enable Functionality and EN1 or EN2 Control
      7. 8.3.7  End Power Transfer Packet (WPC Header 0x02)
      8. 8.3.8  Status Outputs
      9. 8.3.9  WPC Communication Scheme
      10. 8.3.10 Communication Modulator
      11. 8.3.11 Adaptive Communication Limit
      12. 8.3.12 Synchronous Rectification
      13. 8.3.13 Temperature Sense Resistor Network (TS)
      14. 8.3.14 3-State Driver Recommendations For the TS-CTRL Pin
      15. 8.3.15 Thermal Protection
      16. 8.3.16 WPC 1.1 Compliance - Foreign Object Detection
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 bq51010B Wireless Power Receiver Used as a Power Supply
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Using the bq51010B as a Wireless Power Supply
          2. 9.2.1.2.2 Series and Parallel Resonant Capacitor Selection
          3. 9.2.1.2.3 COMM, CLAMP, and BOOT Capacitors
          4. 9.2.1.2.4 Control Pins and WPG
          5. 9.2.1.2.5 Current Limit and FOD
          6. 9.2.1.2.6 RECT and OUT Capacitance
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Dual Power Path: Wireless Power and DC Input
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
      3. 9.2.3 Wireless and Direct Charging of a Li-Ion Battery at 800 mA
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Detailed Design Procedure
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Community Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Integrated Wireless Power Supply Receiver Solution With a 7-V Regulated Supply
    • 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 7-V Output
  • WPC v1.1 Compliant (FOD Enabled) Highly Accurate Current Sense
  • 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
  • Supports 20-V Maximum Input
  • Low-power Dissipative Rectifier Overvoltage Clamp (VOVP = 15 V)
  • Thermal Shutdown
  • Multifunction NTC and Control Pin for Temperature Monitoring, Charge Complete and Fault Host Control

2 Applications

  • WPC v1.1 Compliant Receivers
  • Cell Phones and Smart Phones
  • Headsets
  • Digital Cameras
  • Portable Media Players
  • Hand-Held Devices

3 Description

The bq51010B is a family of advanced, flexible, secondary-side devices for wireless power transfer in portable applications. The bq51010B devices provide the AC-DC power conversion and regulation while integrating the digital control required to comply with the Qi v1.1 communication protocol. Together with the bq50xxx primary-side controller, the bq51010B enables a complete contact-less power transfer system for a wireless power supply solution. Global feedback is established from the secondary to the primary to control the power transfer process using the Qi v1.1 protocol.

The bq51010B devices integrate a low resistance synchronous rectifier, low-dropout regulator, digital control, and accurate voltage and current loops to ensure high efficiency and low power dissipation.

The bq51010B also includes a digital controller that can calculate the amount of power received by the mobile device within the limits set by the WPC v1.1 standard. The controller will then communicate this information to the transmitter to allow the transmitter to determine if a foreign object is present within the magnetic interface and introduces a higher level of safety within magnetic field. This Foreign Object Detection (FOD) method is part of the requirements under the WPC v1.1 specification.

Device Information (1)

PART NUMBER PACKAGE BODY SIZE (NOM)
bq51010B DSBGA (28) 1.90 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Wireless Power Consortium (WPC or Qi) Inductive Power System

bq51010B fig1_lusay6.gif

4 Revision History

Changes from * Revision (December 2012) to A Revision

  • Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information sectionGo
  • Removed Package Summary, see POA at the end of the data sheetGo