SLLSEF3C June   2013  – March 2021 SN6501-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Handling Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 15
  8. 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
      2. 8.4.2 Operating Mode
      3. 8.4.3 Off-Mode
  9. 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 SN6501 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 Curve
      4. 9.2.4 Higher Output Voltage Designs
      5. 9.2.5 Application Circuits
  10. 10Power Supply Recommendations
    1. 10.1 43
  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 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

9.2.5 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 9-4.

Table 9-4 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

Certain components might not possess AEC-Q100 Q1 qualification. For more detailed information on qualified components for automotive applications please refer to the automotive web page: http://www.ti.com/lsds/ti/apps/automotive/applications.page.

GUID-9BC18C59-B49F-4006-B9F5-E58A48B7B1A8-low.pngFigure 9-12 Isolated RS-485 Interface
GUID-68CD1A52-6048-484B-A760-D6D6DB9144B7-low.pngFigure 9-13 Isolated Can Interface
GUID-717ADC79-E66F-46C1-B4B6-8BC19D987627-low.pngFigure 9-14 Isolated RS-232 Interface
GUID-9EE1EE87-55D4-4EFD-8858-F7F43A1CB01D-low.pngFigure 9-15 Isolated Digital Input Module
GUID-C39CB157-91A9-46E9-88E3-3AB489C93B58-low.pngFigure 9-16 Isolated SPI Interface for an Analog Input Module With 16 Inputs
GUID-B7A27C1C-0E12-4B48-B437-B3C472B74DD5-low.pngFigure 9-17 Isolated I2C Interface for an Analog Data Acquisition System With 4 Inputs and 4 Outputs
GUID-2F45C732-E317-48F5-94D4-3F10206B9CA0-low.gifFigure 9-18 Isolated 4-20 mA Current Loop