ZHCSOO1D December   2000  – August 2021 DCR021205 , DCR022405

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 Isolation
        1. 7.3.1.1 Operation or Functional Isolation
        2. 7.3.1.2 Basic or Enhanced Isolation
        3. 7.3.1.3 Working Voltage
        4. 7.3.1.4 Isolation Voltage Rating
        5. 7.3.1.5 Repeated High-Voltage Isolation Testing
      2. 7.3.2 Power Stage
      3. 7.3.3 Oscillator and Watchdog
      4. 7.3.4 ERROR Flag
      5. 7.3.5 Synchronization
      6. 7.3.6 Construction
      7. 7.3.7 Decoupling – Ripple Reduction
    4. 7.4 Device Functional Modes
      1. 7.4.1 Device Disable and Enable
      2. 7.4.2 Regulated Output Disable and Enable
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 DCR02 Single Voltage Output
      2. 8.1.2 Generating Two Positive Output Voltages
      3. 8.1.3 Generation of Dual Polarity Voltages from Two Self-Synchronized DCR02s
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Input Capacitor
        2. 8.2.2.2 Output Capacitor
        3. 8.2.2.3 Filter Capacitor
        4. 8.2.2.4 ERROR Flag
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
    3. 10.3 Thermal Consideration
  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 Electrostatic Discharge Caution
    6. 11.6 术语表
  12. 12Mechanical, Packaging, and Orderable Information

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7.4.2 Regulated Output Disable and Enable

The regulated output of the DCR02 can be disabled by pulling the ENABLE pin LOW. Disabling the output voltage this way still produces a voltage on the VREC pin. When using the ENABLE control, TI recommends placing a 10-kΩ resistor between the VREC and ENABLE pins. The ENABLE pin only controls the internal linear regulator.

If disabling the regulated output is not required, pull the ENABLE pin HIGH by shorting it directly to the VREC pin. This enables the regulated output voltage, thus allowing the output to be controlled from the isolated side.