SLUSAN9A August   2011  – August 2015

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  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
    6. 6.6 Power-on Reset
    7. 6.7 Data Flash Characteristics Over Recommended Operating Temperature and Supply Voltage
    8. 6.8 SMBus Timing Requirements
    9. 6.9 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Feature Set
        1. 7.3.1.1 Primary (1st Level) Safety Features
        2. 7.3.1.2 Secondary (2nd Level) Safety Features
        3. 7.3.1.3 Charge Control Features
        4. 7.3.1.4 Gas Gauging
        5. 7.3.1.5 Lifetime Data Logging Features
        6. 7.3.1.6 Authentication
      2. 7.3.2 Battery Parameter Measurements
        1. 7.3.2.1 Charge and Discharge Counting
        2. 7.3.2.2 Voltage
        3. 7.3.2.3 Current
        4. 7.3.2.4 Wake Function
        5. 7.3.2.5 Auto Calibration
        6. 7.3.2.6 Temperature
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power Modes
    5. 7.5 Programming
      1. 7.5.1 Configuration
        1. 7.5.1.1 Oscillator Function
        2. 7.5.1.2 System Present Operation
      2. 7.5.2 Communications
        1. 7.5.2.1 SMBus On and Off State
      3. 7.5.3 SBS Commands
  8. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Choosing the Correct Chemistry
        2. 8.2.2.2 High-Current Path
        3. 8.2.2.3 Protection FETs
        4. 8.2.2.4 Lithium-Ion Cell Connections
        5. 8.2.2.5 Sense Resistor
        6. 8.2.2.6 ESD Mitigation
        7. 8.2.2.7 System Present
        8. 8.2.2.8 SMBus Communication
      3. 8.2.3 Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Protector FET Bypass and Pack Terminal Bypass Capacitors
      2. 10.1.2 ESD Spark Gap
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

Device and Documentation Support

Documentation Support

Related Documentation

For related documentation see the following:

  • bq20z655 Technical Reference, SLUU493
  • bq20z655EVM and bq34z651EVM SBS 1.1 Impedance Track Technology-Enabled Evaluation Module, SLUU697
  • Quick-Start Guide for bq20zxx Family Gas Gauges, SLUA421

For additional application notes related to the bq20zXX family see the bq20z80 page on www.ti.com.

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.

Trademarks

Impedance Track, E2E are trademarks of Texas Instruments.

All other trademarks are the property of their respective owners.

Electrostatic Discharge Caution

esds-image

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

Glossary

SLYZ022TI Glossary.

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