ZHCSD75D March   2014  – January 2018

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     简化原理图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin 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  Power-On Reset
    6. 6.6  2.5-V LDO Regulator
    7. 6.7  Charger Attachment and Removal Detection
    8. 6.8  CHG and DSG FET Drive
    9. 6.9  Overvoltage Protection (OVP)
    10. 6.10 Undervoltage Protection (UVP)
    11. 6.11 Overcurrent in Discharge (OCD)
    12. 6.12 Overcurrent in Charge (OCC)
    13. 6.13 Short-Circuit in Discharge (SCD)
    14. 6.14 Low Voltage Charging
    15. 6.15 Internal Temperature Sensor Characteristics
    16. 6.16 High-Frequency Oscillator
    17. 6.17 Low-Frequency Oscillator
    18. 6.18 Integrating ADC (Coulomb Counter) Characteristics
    19. 6.19 ADC (Temperature and Cell Voltage) Characteristics
    20. 6.20 Data Flash Memory Characteristics
    21. 6.21 Timing Requirements
    22. 6.22 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Configuration
      2. 7.3.2 Fuel Gauging
      3. 7.3.3 Power Modes
        1. 7.3.3.1 NORMAL Mode
        2. 7.3.3.2 SLEEP Mode
        3. 7.3.3.3 FULLSLEEP Mode
      4. 7.3.4 Li-Ion Battery Protector Description
        1. 7.3.4.1 High-Side NFET Charge and Discharge FET Drive
        2. 7.3.4.2 Protector Configuration
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operating Modes
        1. 7.4.1.1 NORMAL Mode
        2. 7.4.1.2 OVERVOLTAGE Mode
        3. 7.4.1.3 UNDERVOLTAGE Mode
        4. 7.4.1.4 OVERCURRENT IN CHARGE Mode
        5. 7.4.1.5 OVERCURRENT IN DISCHARGE and SHORT-CIRCUIT IN DISCHARGE Mode
        6. 7.4.1.6 SHUTDOWN WAIT Mode
          1. 7.4.1.6.1 ANALOG SHUTDOWN State
        7. 7.4.1.7 LOW VOLTAGE CHARGING State
      2. 7.4.2 Firmware Control of Protector
      3. 7.4.3 OVERTEMPERATURE FAULT Mode
      4. 7.4.4 Wake-Up Comparator
    5. 7.5 Battery Parameter Measurements
      1. 7.5.1 Charge and Discharge Counting
      2. 7.5.2 Voltage
      3. 7.5.3 Current
      4. 7.5.4 Auto-Calibration
      5. 7.5.5 Temperature
    6. 7.6 Communications
      1. 7.6.1 HDQ Single-Pin Serial Interface
      2. 7.6.2 I2C Interface
        1. 7.6.2.1 I2C Time Out
        2. 7.6.2.2 I2C Command Waiting Time
    7. 7.7 Standard Data Commands
      1. 7.7.1 Control(): 0x00 and 0x01
    8. 7.8 Extended Data Commands
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Pack-Side, Single-Cell Li-Ion Fuel Gauge and Protector
      2. 8.2.2 Design Requirements
      3. 8.2.3 Detailed Design Procedure
        1. 8.2.3.1  BAT Voltage Sense Input
        2. 8.2.3.2  SRP and SRN Current Sense Inputs
        3. 8.2.3.3  Sense Resistor Selection
        4. 8.2.3.4  TS Temperature Sense Input
        5. 8.2.3.5  Thermistor Selection
        6. 8.2.3.6  VPWR Power Supply Input Filtering
        7. 8.2.3.7  REG25 LDO Output Filtering
        8. 8.2.3.8  Communication Interface Lines
        9. 8.2.3.9  PACKP Voltage Sense Input
        10. 8.2.3.10 CHG and DSG Charge Pump Voltage Outputs
        11. 8.2.3.11 NFET Selection
        12. 8.2.3.12 Additional ESD Protection Components
      4. 8.2.4 Application Curves
  9. 9 Power Supply Recommendation
    1. 9.1 Power Supply Decoupling
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Li-Ion Cell Connections
      2. 10.1.2 Sense Resistor Connections
      3. 10.1.3 Thermistor Connections
      4. 10.1.4 FET Connections
      5. 10.1.5 ESD Component Connections
      6. 10.1.6 High Current and Low Current Path Separation
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 文档支持
      1. 11.1.1 相关文档
    2. 11.2 接收文档更新通知
    3. 11.3 社区资源
    4. 11.4 商标
    5. 11.5 静电放电警告
    6. 11.6 Glossary
  12. 12机械、封装和可订购信息

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

7.3.3.1 NORMAL Mode

The fuel gauge is in NORMAL mode when not in any other power mode. During this mode, AverageCurrent(), Voltage(), and Temperature() measurements are taken, and the interface data set is updated. Decisions to change states are also made. This mode is exited by activating a different power mode.

Because the fuel gauge consumes the most power in NORMAL mode, the Impedance Track algorithm minimizes the time the fuel gauge remains in this mode.

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