SLUSA91C October   2010  – October 2015

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    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: Supply Current
    6. 6.6  Power-On Reset (POR)
    7. 6.7  Wake From Sleep
    8. 6.8  RBI RAM Backup
    9. 6.9  3.3-V Regulator
    10. 6.10 2.5-V Regulator
    11. 6.11 PRES, SMBD, SMBC
    12. 6.12 CHG, DSG FET Drive
    13. 6.13 PCHG FET Drive
    14. 6.14 FUSE
    15. 6.15 Coulomb Counter
    16. 6.16 VC1, VC2, VC3, VC4
    17. 6.17 TS1, TS2
    18. 6.18 Internal Temperature Sensor
    19. 6.19 Internal Thermal Shutdown
    20. 6.20 High-Frequency Oscillator
    21. 6.21 Low-Frequency Oscillator
    22. 6.22 Internal Voltage Reference
    23. 6.23 Flash
    24. 6.24 OCD Current Protection
    25. 6.25 SCD1 Current Protection
    26. 6.26 SCD2 Current Protection
    27. 6.27 SCC Current Protection
    28. 6.28 SBS Timing Requirements
    29. 6.29 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Battery Parameter Measurements
      1. 7.1.1 Charge and Discharge Counting
      2. 7.1.2 Voltage
      3. 7.1.3 Current
      4. 7.1.4 Auto Calibration
      5. 7.1.5 Temperature
      6. 7.1.6 Communications
        1. 7.1.6.1 SMBus On and Off State
        2. 7.1.6.2 SBS Commands
  8. 8 Detailed Description
    1. 8.1 Overview
      1. 8.1.1 Configuration
        1. 8.1.1.1 Oscillator Function
        2. 8.1.1.2 System Present Operation
        3. 8.1.1.3 2-, 3-, or 4-Cell Configuration
        4. 8.1.1.4 Cell Balancing
          1. 8.1.1.4.1 Internal Cell Balancing
          2. 8.1.1.4.2 External Cell Balancing
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Primary (1st Level) Safety Features
      2. 8.3.2 Secondary (2nd Level) Safety Features
      3. 8.3.3 Charge Control Features
      4. 8.3.4 Gas Gauging
      5. 8.3.5 Lifetime Data Logging Features
      6. 8.3.6 Authentication
    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 High-Current Path
          1. 9.2.2.1.1 Protection FETs
          2. 9.2.2.1.2 Chemical Fuse
          3. 9.2.2.1.3 Lithium-Ion Cell Connections
          4. 9.2.2.1.4 Sense Resistor
          5. 9.2.2.1.5 ESD Mitigation
        2. 9.2.2.2 Gas Gauge Circuit
          1. 9.2.2.2.1 Differential Low-Pass Filter
          2. 9.2.2.2.2 Power Supply Decoupling and RBI
          3. 9.2.2.2.3 System Present
          4. 9.2.2.2.4 SMBus Communication
          5. 9.2.2.2.5 FUSE Circuitry
          6. 9.2.2.2.6 PFIN Detection
        3. 9.2.2.3 Secondary-Current Protection
          1. 9.2.2.3.1 Cell and Battery Inputs
          2. 9.2.2.3.2 External Cell Balancing
          3. 9.2.2.3.3 PACK and FET Control
          4. 9.2.2.3.4 Regulator Output
          5. 9.2.2.3.5 Temperature Output
        4. 9.2.2.4 Secondary-Overvoltage Protection
          1. 9.2.2.4.1 Cell Inputs
          2. 9.2.2.4.2 Time-Delay Capacitor
      3. 9.2.3 Application Curves
    3. 9.3 System Example
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

12 Device and Documentation Support

12.1 Documentation Support

12.1.1 Related Documentation

For related documentation, see the following:

  • bq3055 Technical Reference Manual (SLUU440)
  • Fast Cell Balancing Using External MOSFET (SLUA420)

12.2 Community Resources

The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use.

    TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers.
    Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support.

12.3 Trademarks

E2E is a trademark of Texas Instruments.

All other trademarks are the property of their respective owners.

12.4 Glossary

SLYZ022 — TI Glossary.

This glossary lists and explains terms, acronyms, and definitions.