ZHCS766B February   2012  – January 2025 INA230

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 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 Electrical Characteristics
    6. 6.6 Timing Requirements (I2C)
    7. 6.7 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Basic ADC Functions
      2. 7.3.2 Power Calculation
      3. 7.3.3 Alert Pin
    4. 7.4 Device Functional Modes
      1. 7.4.1 Averaging and Conversion Time Considerations
      2. 7.4.2 Filtering and Input Considerations
    5. 7.5 Programming
      1. 7.5.1 Programming the Calibration Register
      2. 7.5.2 Programming the INA230 Power Measurement Engine
        1. 7.5.2.1 Calibration Register and Scaling
      3. 7.5.3 Simple Current Shunt Monitor Usage (No Programming Necessary)
      4. 7.5.4 Default INA230 Settings
      5. 7.5.5 Bus Overview
        1. 7.5.5.1 Serial Bus Address
        2. 7.5.5.2 Serial Interface
      6. 7.5.6 Writing to and Reading From the I2C Serial Interface
        1. 7.5.6.1 High-Speed I2C Mode
      7. 7.5.7 SMBus Alert Response
    6. 7.6 Register Maps
      1. 7.6.1 Configuration Register (00h, Read/Write)
      2. 7.6.2 AVG Bit Settings [11:9]
      3. 7.6.3 VBUS CT Bit Settings [8:6]
      4. 7.6.4 VSH CT Bit Settings [5:3]
      5. 7.6.5 Mode Settings [2:0]
      6. 7.6.6 Data Output Register
        1. 7.6.6.1 Shunt Voltage Register (01h, Read-Only)
        2. 7.6.6.2 Bus Voltage Register (02h, Read-Only) #GUID-A37EA2E7-DC60-42D5-94EF-920B5CD5B7A9/SBOS5477597
        3. 7.6.6.3 Power Register (03h, Read-Only)
        4. 7.6.6.4 Current Register (04h, Read-Only)
        5. 7.6.6.5 Calibration Register (05h, Read/Write)
        6. 7.6.6.6 Mask/Enable Register (06h, Read/Write)
        7. 7.6.6.7 Alert Limit Register (07h, Read/Write)
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 High-Side Sensing Circuit Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 接收文档更新通知
    3. 9.3 支持资源
    4. 9.4 Trademarks
    5. 9.5 静电放电警告
    6. 9.6 术语表
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

7.6.6.2 Bus Voltage Register (02h, Read-Only)(1)

The Bus Voltage register stores the most recent bus voltage reading, VBUS.

If averaging is enabled, this register displays the averaged value. Full-scale range = 40.95875 V (decimal = 7FFF); LSB = 1.25 mV. Do not apply more than 36 V on the BUS pin.

Table 7-10 Bus Voltage Register (02h, Read-Only) Description
BIT #D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0
BIT
NAME		—BD14BD13BD12BD11BD10BD9BD8BD7BD6BD5BD4BD3BD2BD1BD0
POR VALUE0000000000000000
(1) D15 is always zero because bus voltage can only be positive.