JAJSEX6B December   2017  – October 2019 INA381

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      代表的なアプリケーション
  4. 4 改訂履歴
  5. 5 概要（続き）
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 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 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Wide Input Common-Mode Voltage Range
      2. 8.3.2 Precise Low-Side Current Sensing
      3. 8.3.3 High Bandwidth and Slew Rate
      4. 8.3.4 Alert Output
      5. 8.3.5 Adjustable Overcurrent Threshold
      6. 8.3.6 Comparator Hysteresis
    4. 8.4 Device Functional Modes
      1. 8.4.1 Alert Modes
        1. 8.4.1.1 Transparent Output Mode
        2. 8.4.1.2 Latch Output Mode
  9. 9 Applications and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Select a Current-Sensing Resistor
        1. 9.1.1.1 Select a Current-Sensing Resistor: Example
      2. 9.1.2 Increase Comparator Hysteresis
      3. 9.1.3 Operation With Common-Mode Transients Greater Than 26 V
      4. 9.1.4 Input Filtering
    2. 9.2 Typical Applications
      1. 9.2.1 Bidirectional Window Comparator
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
      2. 9.2.2 Solenoid Low-Side Current Sensing
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12デバイスおよびドキュメントのサポート
    1. 12.1 ドキュメントのサポート
      1. 12.1.1 関連資料
    2. 12.2 ドキュメントの更新通知を受け取る方法
    3. 12.3 サポート・リソース
    4. 12.4 商標
    5. 12.5 静電気放電に関する注意事項
    6. 12.6 Glossary
  13. 13メカニカル、パッケージ、および注文情報

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）
  • DGS|10
  • DSG|8
サーマルパッド・メカニカル・データ
発注情報

8.3.3 High Bandwidth and Slew Rate

The INA381 supports small-signal bandwidths as high as 350 kHz, and large-signal slew rates of 2 V/µs. The ability to detect rapid changes in the sensed current, as well as the ability to quickly slew the output, makes the INA381 a good choice for applications that require a quick response to input current changes. One application that requires high bandwidth and slew rate is low-side motor control, where the ability to follow rapid changing current in the motor allows for more accurate control over a wider operating range. Another application that requires higher bandwidth and slew rates is system fault detection. The integrated comparator within the INA381 is designed to quickly detect when the sense current is out-of-range, and provide a digital output on the ALERT pin for quicker and faster responses.