JAJSRJ1A June   2011  – February 2024 OPA564-Q1

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 Table
  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 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 Adjustable Current Limit
        1. 7.3.1.1 Setting the Current Limit
      2. 7.3.2 Enable and Shutdown (E/S) Pin
      3. 7.3.3 Input Protection
      4. 7.3.4 Output Shutdown
      5. 7.3.5 Microcontroller Compatibility
      6. 7.3.6 Current Limit Flag
      7. 7.3.7 Thermal Protection
      8. 7.3.8 Junction Temperature Measurement Using TSENSE
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Basic Configuration
      2. 8.1.2 Output-Stage Compensation
      3. 8.1.3 Output Protection
      4. 8.1.4 Power Dissipation and Safe Operating Area
    2. 8.2 Typical Applications
      1. 8.2.1 Improved Howland Current Pump
      2. 8.2.2 Programmable Power Supply
      3. 8.2.3 Powerline Communication
      4. 8.2.4 Motor-Drive Circuit
      5. 8.2.5 DC Motor-Speed Controller (Without Tachometer)
      6. 8.2.6 Generating VDIG
      7. 8.2.7 Temperature Measurement
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Thermally Enhanced PowerPAD™ Integrated Circuit Package
          1. 8.4.1.1.1 Bottom-Side Thermal Pad Assembly Process
  10. 9 Device and Documentation Support
    1. 9.1 ドキュメントの更新通知を受け取る方法
    2. 9.2 サポート・リソース
    3. 9.3 Trademarks
    4. 9.4 静電気放電に関する注意事項
    5. 9.5 用語集
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

パッケージ・オプション

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

7.3.2 Enable and Shutdown (E/S) Pin

The output of the OPA564-Q1 shuts down when the E/S pin is forced low. For normal operation (output enabled), pull the E/S pin high (at least 2V greater than V–). To enable the OPA564-Q1 permanently, leave the the E/S pin unconnected. The E/S pin has an internal 100kΩ pullup resistor. When the output is shut down, the output impedance of the OPA564-Q1 is typically 6GΩ || 120pF. Figure 7-6 shows the output shutdown output voltage versus output current. Although the output is high-impedance when shut down, there is still a path through the feedback network into the input stage to ground; see Figure 7-7. To prevent damage to the OPA564-Q1, ensure that the voltage across input pins +IN and –IN does not exceed ±0.5V, and that the current flowing through the input pins does not exceed 10mA when operated beyond the supply rails, V– and V+; see also Input Protection.