SLLSEA0I February   2012  – January 2021 SN6501

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    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 Third-Party Products Disclaimer
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

8.2.5 Application Circuits

The following application circuits are shown for a 3.3 V input supply commonly taken from the local, regulated micro-controller supply. For 5 V input voltages requiring different turn ratios refer to the transformer manufacturers and their websites listed in Table 8-4.

Table 8-4 Transformer Manufacturers
Coilcraft Inc.http://www.coilcraft.com
Halo-Electronics Inc.http://www.haloelectronics.com
Murata Power Solutionshttp://www.murata-ps.com
Wurth Electronics Midcom Inchttp://www.midcom-inc.com
GUID-04400654-BB4A-406C-8A96-25A626BEAADC-low.pngFigure 8-12 Isolated RS-485 Interface
GUID-54995A54-9BD7-405A-A958-57D803F38548-low.gifFigure 8-13 Isolated Can Interface
GUID-8AB5DCB0-DD8A-4C62-A5A7-BAE81EE5AF42-low.pngFigure 8-14 Isolated RS-232 Interface
GUID-5077BBE2-5ECA-4081-8890-6AA692D2D078-low.pngFigure 8-15 Isolated Digital Input Module
GUID-F07155B2-9E9C-4A62-AB1E-5201DE4DCC39-low.pngFigure 8-16 Isolated SPI Interface for an Analog Input Module With 16 Inputs
GUID-8BAA04C5-B2A3-4116-A958-4956CA3CFE35-low.pngFigure 8-17 Isolated I2C Interface for an Analog Data Acquisition System With 4 Inputs and 4 Outputs
GUID-35C5827B-57F3-4E6B-B0F0-987A7212BAA8-low.gifFigure 8-18 Isolated 4-20 mA Current Loop