JAJSDQ8D February   2013  – July 2022 INA231

PRODUCTION DATA  

  1. 特長
  2. アプリケーション
  3. 概要
  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 Receiving Notification of Documentation Updates
    3. 10.3 サポート・リソース
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

パッケージ・オプション

デバイスごとのパッケージ図は、PDF版データシートをご参照ください。

メカニカル・データ(パッケージ|ピン)
  • YFF|12
  • YFD|12
サーマルパッド・メカニカル・データ
発注情報

Typical Characteristics

at TA = 25°C, VS = 3.3 V,VIN+ = 12 V, VSENSE = (VIN+ – VIN–) = 0 mV, and VBUS = 12 V (unless otherwise noted)

GUID-82E73FE5-9A17-4662-B762-E6AEB6D1F9DC-low.gif
Conversion time = 1.1 ms
Figure 7-2 Frequency Response
GUID-0C11018B-013A-488B-81DE-F43086E0B3B9-low.png
Figure 7-4 Shunt Input Offset Voltage vs Temperature
GUID-DBCDA457-C156-4A8D-9310-0EBA983B1804-low.gif
Figure 7-6 Shunt Input Gain Error Production Distribution
GUID-B7ABAC6B-BD98-467F-972F-BB329EE44729-low.gif
Figure 7-8 Shunt Input Gain Error vs Common-Mode Voltage
GUID-38F8E621-92C6-47DA-8C8E-F9C3F0666716-low.png
Figure 7-10 Bus Input Offset Voltage vs Temperature
GUID-AE997E83-F21F-4B94-A176-6FBE165685ED-low.png
Figure 7-12 Bus Input Gain Error vs Temperature
GUID-530702A1-B10D-45D0-887E-71DCFB3E2034-low.png
Figure 7-14 Input Bias Current vs Temperature
GUID-23EE6AE0-CE41-4219-B811-781A64A3EB19-low.png
Figure 7-16 Active IQ vs Temperature
GUID-509655BD-9F61-4C13-BA42-1DC88CCB838F-low.gif
Figure 7-18 Active IQ vs I2C Clock Frequency
GUID-F5EB42CE-E49B-4CD1-B91A-E21B620BF503-low.gif
Figure 7-3 Shunt Input Offset Voltage Production Distribution
GUID-4C3DBC74-0DDB-43A5-BE92-62E1E54304BB-low.gif
Figure 7-5 Shunt Input Common-Mode Rejection Ratio vs Temperature
GUID-1A3F2744-F0EE-466C-BE1A-EDAD7AEC892E-low.png
Figure 7-7 Shunt Input Gain Error vs Temperature
GUID-36FE03B4-5771-44A8-B28C-8EB098BA5603-low.gif
Figure 7-9 Bus Input Offset Voltage Production Distribution
GUID-6E693D94-C751-49B5-9003-471B4E25F1B9-low.gif
Figure 7-11 Bus Input Gain Error Production Distribution
GUID-A9711F38-667E-4EEE-B570-B334DC8BD1D2-low.gif
Figure 7-13 Input Bias Current vs Common-Mode Voltage
GUID-9983CD20-3603-4570-B6D4-6422BF564ADB-low.png
Figure 7-15 Input Bias Current vs Temperature, Shutdown
GUID-67050F91-3D56-447A-B280-681872749233-low.png
Figure 7-17 Shutdown IQ vs Temperature
GUID-E9DF58FE-F8E7-4AC2-A82B-B55A0E330E87-low.gif
Figure 7-19 Shutdown IQ vs I2C Clock Frequency