JAJSN53B February   2012  – January 2025 INA230

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  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 ドキュメントの更新通知を受け取る方法
    3. 9.3 サポート・リソース
    4. 9.4 Trademarks
    5. 9.5 静電気放電に関する注意事項
    6. 9.6 用語集
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

8.2.1.3 Application Curves

Figure 8-2 shows the Alert pin response to a shunt voltage over-limit of 80mV for a conversion time (tCT) of 1.1ms and averaging set to 1. Figure 8-3 shows the response for the same limit but with the conversion time reduced to 140µs.

INA230 Alert Response
See Table 8-2 tCT = 1.1ms
See Table 8-4 See Table 8-5
Figure 8-2 Alert Response
INA230 Alert Response
See Table 8-3 tCT = 140µs
See Table 8-4 See Table 8-5
Figure 8-3 Alert Response
Table 8-2 Configuration register (00h) Settings for Figure 8-2 (Value = 4025h)
BIT #D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0
BIT
NAME		RST———AVG2AVG1AVG0VBUSCT2VBUSCT1VBUSCT0VSHCT2VSHCT1VSHCT0MODE3MODE2MODE1
VALUE0100000000100101
Table 8-3 Configuration register (00h) Settings for Figure 8-3 (Value = 4005h)
BIT #D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0
BIT
NAME		RST———AVG2AVG1AVG0VBUSCT2VBUSCT1VBUSCT0VSHCT2VSHCT1VSHCT0MODE3MODE2MODE1
VALUE0100000000000101
Table 8-4 Mask/Enable register (06h) Settings for Figure 8-2 and Figure 8-3 (Value = 8000h)
BIT #D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0
BIT
NAME		SOLSULBOLBULPOLCNVR—————AFFCVRFOVFAPOLLEN
VALUE1000000000000000
Table 8-5 Alert Limit register (07h) Settings for Figure 8-2 and Figure 8-3 (Value = 7D00)
BIT #D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0
BIT
NAME		AUL15AUL14AUL13AUL12AUL11AUL10AUL9AUL8AUL7AUL6AUL5AUL4AUL3AUL2AUL1AUL0
VALUE0111110100000000