ZHCSAQ1D February   2013  – July 2022 INA231

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. Device Comparison
  6. Pin Configuration and Functions
  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 Electrical Characteristics
    6. 7.6 Timing Requirements: I2C Bus
    7. 7.7 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Basic Analog-to-Digital Converter (ADC) Functions
        1. 8.3.1.1 Power Calculation
        2. 8.3.1.2 ALERT Pin
    4. 8.4 Device Functional Modes
      1. 8.4.1 Averaging and Conversion Time Considerations
    5. 8.5 Programming
      1. 8.5.1 Configure, Measure, and Calculate Example
      2. 8.5.2 Programming the Power Measurement Engine
        1. 8.5.2.1 Calibration Register and Scaling
      3. 8.5.3 Simple Current Shunt Monitor Usage (No Programming Necessary)
      4. 8.5.4 Default INA231 Settings
      5. 8.5.5 Writing to and Reading from the INA231
        1. 8.5.5.1 Bus Overview
          1. 8.5.5.1.1 Serial Bus Address
          2. 8.5.5.1.2 Serial Interface
        2. 8.5.5.2 High-Speed I2C Mode
      6. 8.5.6 SMBus Alert Response
    6. 8.6 Register Maps
      1. 8.6.1 Configuration Register (00h, Read/Write)
        1. 8.6.1.1 AVG Bit Settings [11:9]
        2. 8.6.1.2 VBUS CT Bit Settings [8:6]
        3. 8.6.1.3 VSH CT Bit Settings [5:3]
        4. 8.6.1.4 Mode Settings [2:0]
      2. 8.6.2 Shunt Voltage Register (01h, Read-Only)
      3. 8.6.3 Bus Voltage Register (02h, Read-Only)
      4. 8.6.4 Power Register (03h, Read-Only)
      5. 8.6.5 Current Register (04h, Read-Only)
      6. 8.6.6 Calibration Register (05h, Read/Write)
      7. 8.6.7 Mask/Enable Register (06h, Read/Write)
      8. 8.6.8 Alert Limit Register (07h, Read/Write)
  9. Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Filtering and Input Considerations
    2. 9.2 Typical Applications
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 接收文档更新通知
    3. 10.3 支持资源
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 术语表
  11. 11Mechanical, Packaging, and Orderable 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)
  • YFF|12
  • YFD|12
散热焊盘机械数据 (封装 | 引脚)
订购信息

Detailed Design Procedure

The ALERT pin can be configured to respond to one of the five alert functions described in the Section 8.3.1.2 section. The ALERT pin must to be pulled up to the vs pin voltage using a pull-up resistor. The Configuration register is set based on the required conversion time and averaging. The Mask/Enable register is set to identify the required alert function and the Alert Limit register is set to the limit value used for comparison.