SLUS606P June   2004  – November 2015

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Options
  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 Dissipation Ratings
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  PWM Controller
      2. 8.3.2  Temperature Qualification
      3. 8.3.3  Battery Preconditioning (Precharge)
      4. 8.3.4  Battery Charge Current
      5. 8.3.5  Battery Voltage Regulation
      6. 8.3.6  Charge Termination and Recharge
      7. 8.3.7  Sleep Mode
      8. 8.3.8  Charge Status Outputs
      9. 8.3.9  PG Output
      10. 8.3.10 CE Input (Charge Enable)
      11. 8.3.11 Timer Fault Recovery
      12. 8.3.12 Output Overvoltage Protection (Applies to All Versions)
      13. 8.3.13 Functional Description For System-Controlled Version (bq2411x)
      14. 8.3.14 Precharge and Fast-Charge Control
      15. 8.3.15 Charge Termination and Safety Timers
      16. 8.3.16 Battery Detection
        1. 8.3.16.1 Battery Detection Example
      17. 8.3.17 Current Sense Amplifier
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Inductor, Capacitor, and Sense Resistor Selection Guidelines
      3. 9.2.3 Application Curve
    3. 9.3 System Examples
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
  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 Related Links
    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

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10 Power Supply Recommendations

For proper operation of bqSWITCHER™, VCC and IN (tied together) must be from 4.35 V to 16 V. Power limit for the input supply must be greater than the maximum power required for charging the battery (plus any additional load on the output of the switch-mode converter).