ZHCSEJ9D april   2014  – june 2021 BQ28Z610

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Description (Continued)
  7. 6 Pin Configuration and Functions
  8. 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  Supply Current
    6. 7.6  Power Supply Control
    7. 7.7  Low-Voltage General Purpose I/O, TS1
    8. 7.8  Power-On Reset (POR)
    9. 7.9  Internal 1.8-V LDO
    10. 7.10 Current Wake Comparator
    11. 7.11 Coulomb Counter
    12. 7.12 ADC Digital Filter
    13. 7.13 ADC Multiplexer
    14. 7.14 Cell Balancing Support
    15. 7.15 Internal Temperature Sensor
    16. 7.16 NTC Thermistor Measurement Support
    17. 7.17 High-Frequency Oscillator
    18. 7.18 Low-Frequency Oscillator
    19. 7.19 Voltage Reference 1
    20. 7.20 Voltage Reference 2
    21. 7.21 Instruction Flash
    22. 7.22 Data Flash
    23. 7.23 Current Protection Thresholds
    24. 7.24 Current Protection Timing
    25. 7.25 N-CH FET Drive (CHG, DSG)
    26. 7.26 I2C Interface I/O
    27. 7.27 I2C Interface Timing
    28. 7.28 Typical Characteristics
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Battery Parameter Measurements
        1. 8.3.1.1 BQ28Z610 Processor
      2. 8.3.2  Coulomb Counter (CC)
      3. 8.3.3  CC Digital Filter
      4. 8.3.4  ADC Multiplexer
      5. 8.3.5  Analog-to-Digital Converter (ADC)
      6. 8.3.6  ADC Digital Filter
      7. 8.3.7  Internal Temperature Sensor
      8. 8.3.8  External Temperature Sensor Support
      9. 8.3.9  Power Supply Control
      10. 8.3.10 Power-On Reset
      11. 8.3.11 Bus Communication Interface
      12. 8.3.12 Cell Balancing Support
      13. 8.3.13 N-Channel Protection FET Drive
      14. 8.3.14 Low Frequency Oscillator
      15. 8.3.15 High Frequency Oscillator
      16. 8.3.16 1.8-V Low Dropout Regulator
      17. 8.3.17 Internal Voltage References
      18. 8.3.18 Overcurrent in Discharge Protection
      19. 8.3.19 Short-Circuit Current in Charge Protection
      20. 8.3.20 Short-Circuit Current in Discharge 1 and 2 Protection
      21. 8.3.21 Primary Protection Features
      22. 8.3.22 Gas Gauging
      23. 8.3.23 Charge Control Features
      24. 8.3.24 Authentication
    4. 8.4 Device Functional Modes
      1. 8.4.1 Lifetime Logging Features
      2. 8.4.2 Configuration
        1. 8.4.2.1 Coulomb Counting
        2. 8.4.2.2 Cell Voltage Measurements
        3. 8.4.2.3 Current Measurements
        4. 8.4.2.4 Auto Calibration
        5. 8.4.2.5 Temperature Measurements
  10. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Design Requirements (Default)
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Setting Design Parameters
      3. 9.2.3 Calibration Process
      4. 9.2.4 Gauging Data Updates
        1. 9.2.4.1 Application Curve
  11.   Power Supply Requirements
  12. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  13. 11Device and Documentation Support
    1. 11.1 第三方产品免责声明
    2. 11.2 Documentation Support
    3. 11.3 接收文档更新通知
    4. 11.4 静电放电警告
    5. 11.5 支持资源
    6. 11.6 Trademarks
    7. 11.7 术语表
  14.   Mechanical, Packaging, and Orderable Information

封装选项

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

7.11 Coulomb Counter

Typical values stated where TA = 25°C and VCC = 7.2 V, Min/Max values stated where TA = –40°C to 85°C and VCC = 2.2 V to 7.6 V (unless otherwise noted)
PARAMETERTEST CONDITIONMINTYPMAXUNIT
Input voltage range–100100mV
Full scale range–VREF1/10+VREF1/10mV
Differential nonlinearity16-bit, No missing codes±1LSB
Integral nonlinearity16-bit, Best fit over input voltage range±5.2±22.3LSB
Offset error16-bit, Post-calibration±1.3±2.6LSB
Offset error drift15-bit + sign, Post-calibration0.040.07LSB/°C
Gain error15-bit + sign, Over input voltage range±131±492LSB
Gain error drift15-bit + sign, Over input voltage range4.39.8LSB/°C
Effective input resistance2.5MΩ