JAJSHI0I February   2012  – January 2021 SN6501

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 説明
    1.     Revision History
  4. 4 Pin Configuration and Functions
  5. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 Handling Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
    7. 5.7 Typical Characteristics
  6. 6 Parameter Measurement Information
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Push-Pull Converter
      2. 7.3.2 Core Magnetization
    4. 7.4 Device Functional Modes
      1. 7.4.1 Start-Up Mode
      2. 7.4.2 Operating Mode
      3. 7.4.3 Off-Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 SN6501 Drive Capability
        2. 8.2.2.2 LDO Selection
        3. 8.2.2.3 Diode Selection
        4. 8.2.2.4 Capacitor Selection
        5. 8.2.2.5 Transformer Selection
          1. 8.2.2.5.1 V-t Product Calculation
          2. 8.2.2.5.2 Turns Ratio Estimate
          3. 8.2.2.5.3 Recommended Transformers
      3. 8.2.3 Application Curve
      4. 8.2.4 Higher Output Voltage Designs
      5. 8.2.5 Application Circuits
  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 サード・パーティ製品に関する免責事項
    2. 11.2 Trademarks
    3. 11.3 静電気放電に関する注意事項
    4. 11.4 用語集
  12. 12Mechanical, Packaging, and Orderable Information

7.4.1 Start-Up Mode

When the supply voltage at Vcc ramps up to 2.4 V typical, the internal oscillator starts operating at a start frequency of 300 kHz. The output stage begins switching but the amplitude of the drain signals at D1 and D2 has not reached its full maximum yet.