ZHCSK07A July   2019  – January 2021 INA253-Q1

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Integrated Shunt Resistor
      2. 7.3.2 Short-Circuit Duration
      3. 7.3.3 Temperature Stability
      4. 7.3.4 Enhanced PWM Rejection Operation
      5. 7.3.5 Input Signal Bandwidth
    4. 7.4 Device Functional Modes
      1. 7.4.1 Adjusting the Output Midpoint With the Reference Pins
      2. 7.4.2 Reference Pin Connections for Unidirectional Current Measurements
      3. 7.4.3 Ground Referenced Output
      4. 7.4.4 Reference Pin Connections for Bidirectional Current Measurements
        1. 7.4.4.1 Output Set to External Reference Voltage
      5. 7.4.5 Output Set to Mid-Supply Voltage
      6. 7.4.6 Output Set to Mid-External Reference
      7. 7.4.7 Output Set Using Resistor Divide
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Input Filtering
    2. 8.2 Typical Applications
      1. 8.2.1 High-Side, High-Drive, Solenoid Current-Sense Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Speaker Enhancements and Diagnostics Using Current Sense Amplifier
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
    2. 11.2 Related Documentation
    3. 11.3 接收文档更新通知
    4. 11.4 支持资源
    5. 11.5 Trademarks
    6. 11.6 静电放电警告
    7. 11.7 术语表
  12. 12Mechanical, Packaging, and Orderable Information

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7.4.2 Reference Pin Connections for Unidirectional Current Measurements

Unidirectional operation allows current measurements through a resistive shunt in one direction. For unidirectional operation, connect the device reference pins together and then to the negative rail (see Section 7.4.3). The required differential input polarity depends on the output voltage setting. The amplifier output moves away from the referenced rail proportional to the current passing through the internal shunt resistor.
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