SLUSFQ0 November   2024 BQ27Z758

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configurations and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
      1. 5.5.1 Supply Current
      2. 5.5.2 Common Analog (LDO, LFO, HFO, REF1, REF2, I-WAKE)
      3. 5.5.3 Battery Protection (CHG, DSG)
      4. 5.5.4 Cell Sensing Output (BAT_SP, BAT_SN)
      5. 5.5.5 Gauge Measurements (ADC, CC, Temperature)
      6. 5.5.6 Flash Memory
    6. 5.6 Digital I/O: DC Characteristics
    7. 5.7 Digital I/O: Timing Characteristics
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  BQ27Z758 Processor
      2. 6.3.2  Battery Parameter Measurements
        1. 6.3.2.1 Coulomb Counter (CC) and Digital Filter
        2. 6.3.2.2 ADC Multiplexer
        3. 6.3.2.3 Analog-to-Digital Converter (ADC)
        4. 6.3.2.4 Internal Temperature Sensor
        5. 6.3.2.5 External Temperature Sensor Support
      3. 6.3.3  Power Supply Control
      4. 6.3.4  ENAB Pin
      5. 6.3.5  Bus Communication Interface
      6. 6.3.6  Low Frequency Oscillator
      7. 6.3.7  High Frequency Oscillator
      8. 6.3.8  1.8-V Low Dropout Regulator
      9. 6.3.9  Internal Voltage References
      10. 6.3.10 Overcurrent in Discharge Protection
      11. 6.3.11 Overcurrent in Charge Protection
      12. 6.3.12 Short-Circuit Current in Discharge Protection
      13. 6.3.13 Primary Protection Features
      14. 6.3.14 Battery Sensing
      15. 6.3.15 Gas Gauging
      16. 6.3.16 Zero Volt Charging (ZVCHG)
      17. 6.3.17 Charge Control Features
      18. 6.3.18 Authentication
    4. 6.4 Device Functional Modes
      1. 6.4.1 Lifetime Logging Features
      2. 6.4.2 Configuration
        1. 6.4.2.1 Coulomb Counting
        2. 6.4.2.2 Cell Voltage Measurements
        3. 6.4.2.3 Auto Calibration
        4. 6.4.2.4 Temperature Measurements
  8. 7 Applications and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 Design Requirements (Default)
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Changing Design Parameters
      3. 7.2.3 Calibration Process
      4. 7.2.4 Gauging Data Updates
        1. 7.2.4.1 Application Curve
  9. 8 Power Supply Requirements
  10. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Third-Party Products Disclaimer
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 Receiving Notification of Documentation Updates
    4. 10.4 Support Resources
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 Glossary
  12. 11Revision History
  13. 12Mechanical, Orderable, and Packaging Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • YAH|15
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.3.2.1 Coulomb Counter (CC) and Digital Filter

The first ADC is an integrating analog-to-digital converter designed specifically for tracking charge and discharge activity, or coulomb counting, of a rechargeable battery. It features a single-channel differential input that converts the voltage difference across a sense resistor between the SRP and SRN terminals with a resolution of 3.74 µV. The differential input common mode voltage range is from VSS to VBAT and supports a 1-series cell high-side or low-side sensing option with ±0.1-V input range. The CC digital filter generates a 16-bit conversion value from the delta-sigma CC front-end. New conversions are available every 1 s.
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