ZHCSM99 October   2020 INA280

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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 Amplifier Input Common-Mode Range
        1. 7.3.1.1 Input-Signal Bandwidth
        2. 7.3.1.2 Low Input Bias Current
        3. 7.3.1.3 Multiple Fixed Gain Outputs
        4. 7.3.1.4 Wide Supply Range
    4. 7.4 Device Functional Modes
      1. 7.4.1 Unidirectional Operation
      2. 7.4.2 High Signal Throughput
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 RSENSE and Device Gain Selection
      2. 8.1.2 Input Filtering
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Overload Recovery With Negative VSENSE
      3. 8.2.3 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 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 接收文档更新通知
    3. 11.3 支持资源
    4. 11.4 Trademarks
    5. 11.5 静电放电警告
    6. 11.6 术语表
  12. 12Mechanical, Packaging, and Orderable Information

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机械数据 (封装 | 引脚)
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订购信息

7.4.2 High Signal Throughput

With a bandwidth of 1.1 MHz at a gain of 20 V/V and a slew rate of 2 V/µs, the INA280 is specifically designed for detecting and protecting applications from fast inrush currents. As shown in Table 7-2, the INA280 responds in less than 2 µs for a system measuring a 75-A threshold on a 2-mΩ shunt.

Table 7-2 Response Time
PARAMETEREQUATIONINA280
AT VS = 5 V
GGain20 V/V
IMAXMaximum current100 A
IThresholdThreshold current75 A
RSENSECurrent sense resistor value2 mΩ
VOUT_MAXOutput voltage at maximum currentVOUT = IMAX × RSENSE × G4 V
VOUT_THROutput voltage at threshold currentVOUT_THR = ITHR × RSENSE × G3 V
SRSlew rate2 V/µs
Output response timeTresponse = VOUT_THR / SR< 2 µs
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