SLUS928B March   2009  – July 2016

 

  1. 1Features
  2. 2Applications
  3. 3Description
    1.     Device Images
      1.      System Partitioning Diagram
  4. 4Revision History
  5. 5Pin Configuration and Functions
    1.     Pin Functions
  6. 6Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
  7. 7Detailed Description
    1. 7.1 Feature Description
      1. 7.1.1  Battery Parameter Measurements
        1. 7.1.1.1 Charge and Discharge Counting
        2. 7.1.1.2 Voltage
        3. 7.1.1.3 Voltage Calibration and Accuracy
        4. 7.1.1.4 Current
        5. 7.1.1.5 Auto Calibration
        6. 7.1.1.6 Temperature
      2. 7.1.2  Primary (1st Level) Safety Features
      3. 7.1.3  Secondary (2nd Level) Safety Features
      4. 7.1.4  Charge Control Features
      5. 7.1.5  Gas Gauging
      6. 7.1.6  Lifetime Data Logging Features
      7. 7.1.7  Authentication
      8. 7.1.8  Configuration
        1. 7.1.8.1 System Present Operation
        2. 7.1.8.2 2-, 3-, or 4-Cell Configuration
        3. 7.1.8.3 Cell Balance Control
      9. 7.1.9  Communications
        1. 7.1.9.1 SMBus On and Off State
      10. 7.1.10 SBS Commands
    2. 7.2 Device Functional Modes
      1. 7.2.1 Power Modes
  8. 8Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Community Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  9. 9Mechanical, Packaging, and Orderable Information

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7.1.4 Charge Control Features

The bq3060 charge control features include:

  • Supports JEITA temperature ranges. Reports charging voltage and charging current according to the active temperature range.
  • Handles more complex charging profiles. Allows for splitting the standard temperature range into 2 sub-ranges and allows for varying the charging current according to the cell voltage.
  • Reports the appropriate charging current needed for constant current charging and the appropriate charging voltage needed for constant voltage charging to a smart charger using SMBus broadcasts.
  • Reduce the charge difference of the battery cells in fully charged state of the battery pack gradually using a voltage-based cell balancing algorithm during charging. A voltage threshold can be set up for cell balancing to be active. This prevents fully charged cells from overcharging and causing excessive degradation and also increases the usable pack energy by preventing premature charge termination
  • Supports pre-charging/zero-volt charging
  • Supports charge inhibit and charge suspend if battery pack temperature is out of temperature range
  • Reports charging fault and also indicate charge status via charge and discharge alarms.