ZHCSCY4B November   2013  – October 2014

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 简化电路原理图
  5. 5 修订历史记录
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1  Absolute Maximum Ratings
    2. 8.2  Handling Ratings
    3. 8.3  Recommended Operating Conditions
    4. 8.4  Thermal Information
    5. 8.5  Supply Current
    6. 8.6  Digital Input and Output DC Characteristics
    7. 8.7  LDO Regulator, Wake-up, and Auto-Shutdown DC Characteristics
    8. 8.8  LDO Regulator, Wake-up, and Auto-shutdown AC Characteristics
    9. 8.9  ADC (Temperature and Cell Measurement) Characteristics
    10. 8.10 Integrating ADC (Coulomb Counter) Characteristics
    11. 8.11 I2C-Compatible Interface Communication Timing Characteristics
    12. 8.12 SHUTDOWN and WAKE-UP Timing
    13. 8.13 Typical Characteristics
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
    4. 9.4 Device Functional Modes
    5. 9.5 Programming
      1. 9.5.1 Standard Data Commands
      2. 9.5.2 ControlSRP - SRN): 0x00 and 0x01
      3. 9.5.3 Extended Data Commands
      4. 9.5.4 Communications
        1. 9.5.4.1 I2C Interface
        2. 9.5.4.2 I2C Time Out
        3. 9.5.4.3 I2C Command Waiting Time
        4. 9.5.4.4 I2C Clock Stretching
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 BAT Voltage Sense Input
        2. 10.2.2.2 Integrated LDO Capacitor
        3. 10.2.2.3 Sense Resistor Selection
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendation
    1. 11.1 Power Supply Decoupling
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13器件和文档支持
    1. 13.1 文档支持
      1. 13.1.1 相关文档　
    2. 13.2 商标
    3. 13.3 静电放电警告
    4. 13.4 术语表
  14. 14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

11 Power Supply Recommendation

11.1 Power Supply Decoupling

The battery connection on the BAT pin is used for two purposes:

  • To supply power to the fuel gauge
  • To provide an input for voltage measurement of the battery.

If the connection between the battery pack and the BAT pin has the potential to pick up noise, then a 1.0-µF capacitor is recommended between the BAT pin and VSS. The capacitor should be placed close to the gauge IC and have short traces to both the VDD pin and VSS.

The fuel gauge has an integrated LDO with an output on the VDD pin of approximately 1.8 V. A capacitor of value at least 0.47 μF should be connected between the VDD pin and VSS. The capacitor should be placed close to the gauge IC and have short traces to both the VDD pin and VSS.