SLLSEP9H September   2015  – July 2019 SN6505A , SN6505B

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Device Images
      1.      Simplified Schematic
  4. Revision History
  5. Pin Configuration and Functions
  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 Timing Requirements
    7. 6.7 Typical Characteristics, SN6505A
    8. 6.8 Typical Characteristics, SN6505B
  7. Parameter Measurement Information
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Push-Pull Converter
      2. 8.3.2 Core Magnetization
    4. 8.4 Device Functional Modes
      1. 8.4.1 Start-Up Mode
        1. 8.4.1.1 Soft-Start
      2. 8.4.2 Operating Mode
      3. 8.4.3 Shutdown-Mode
      4. 8.4.4 Spread Spectrum Clocking
      5. 8.4.5 External Clock Mode
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Drive Capability
        2. 9.2.2.2 LDO Selection
        3. 9.2.2.3 Diode Selection
        4. 9.2.2.4 Capacitor Selection
        5. 9.2.2.5 Transformer Selection
          1. 9.2.2.5.1 V-t Product Calculation
          2. 9.2.2.5.2 Turns Ratio Estimate
          3. 9.2.2.5.3 Recommended Transformers
      3. 9.2.3 Application Curves
      4. 9.2.4 System Examples
        1. 9.2.4.1 Higher Output Voltage Designs
        2. 9.2.4.2 Application Circuits
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Related Links
    4. 12.4 Receiving Notification of Documentation Updates
    5. 12.5 Community Resources
    6. 12.6 Trademarks
    7. 12.7 Electrostatic Discharge Caution
    8. 12.8 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Typical Characteristics, SN6505B

SN6505A SN6505B D007_SLLSEP9.gif
SN6505B + Wurth 750315371
Figure 11. Output Voltage vs Load Current
SN6505A SN6505B D010_SLLSEP9.gif
SN6505B + Wurth 760390011 VCC = 3.3 V
Figure 13. Output Voltage vs Load Current
SN6505A SN6505B D012_SLLSEP9.gif
SN6505B + Wurth 760390012 VCC = 5 V
Figure 15. Output Voltage vs Load Current
SN6505A SN6505B D014_SLLSEP9.gif
SN6505B + Wurth 760390013 VCC = 3.3 V
Figure 17. Output Voltage vs Load Current
SN6505A SN6505B D016_SLLSEP9.gif
SN6505B + Wurth 760390014 VCC = 3.3 V
Figure 19. Output Voltage vs Load Current
SN6505A SN6505B D018_SLLSEP9.gif
SN6505B + Wurth 760390014 VCC = 5 V
Figure 21. Output Voltage vs Load Current
SN6505A SN6505B D020_SLLSEP9.gif
SN6505B + Wurth 760390015 VCC = 3.3 V
Figure 23. Output Voltage vs Load Current
SN6505A SN6505B D022_SLLSEP9.gif
SN6505B + Wurth 750316028 VCC = 3.3 V
Figure 25. Output Voltage vs Load Current
SN6505A SN6505B D024_SLLSEP9.gif
SN6505B + Wurth 750316029 VCC = 3.3 V
Figure 27. Output Voltage vs Load Current
SN6505A SN6505B D026_SLLSEP9.gif
SN6505B + Wurth 7503160030 VCC = 5 V
Figure 29. Output Voltage vs Load Current
SN6505A SN6505B D004_SLLSEP9.gif
Figure 31. Frequency vs Free-Air Temperature
SN6505A SN6505B CLK_timer_plot_sllsep9.gif
Figure 33. Scope Capture of SN6505 Switching from External to Internal Clock
SN6505A SN6505B D008_SLLSEP9.gif
SN6505B + Wurth 750315371
Figure 12. Efficiency vs Load Current
SN6505A SN6505B D011_SLLSEP9.gif
SN6505B + Wurth 760390011 VCC = 3.3 V
Figure 14. Efficiency vs Load Current
SN6505A SN6505B D013_SLLSEP9.gif
SN6505B + Wurth 760390012 VCC = 5 V
Figure 16. Efficiency vs Load Current
SN6505A SN6505B D015_SLLSEP9.gif
SN6505B + Wurth 760390013 VCC = 3.3 V
Figure 18. Efficiency vs Load Current
SN6505A SN6505B D017_SLLSEP9.gif
SN6505B + Wurth 760390014 VCC = 3.3 V
Figure 20. Efficiency vs Load Current
SN6505A SN6505B D019_SLLSEP9.gif
SN6505B + Wurth 760390014 VCC = 5 V
Figure 22. Efficiency vs Load Current
SN6505A SN6505B D021_SLLSEP9.gif
SN6505B + Wurth 760390015 VCC = 3.3 V
Figure 24. Efficiency vs Load Current
SN6505A SN6505B D023_SLLSEP9.gif
SN6505B + Wurth 750316028 VCC = 3.3 V
Figure 26. Efficiency vs Load Current
SN6505A SN6505B D025_SLLSEP9.gif
SN6505B + Wurth 750316029 VCC = 3.3 V
Figure 28. Efficiency vs Load Current
SN6505A SN6505B D027_SLLSEP9.gif
SN6505B + Wurth 7503160030 VCC = 5 V
Figure 30. Efficiency vs Load Current
SN6505A SN6505B D002_SLLSEP9.gif
Figure 32. Current vs External Frequency