SLVS861F august   2008  – june 2020 TPS40210-Q1 , TPS40211-Q1

PRODUCTION DATA  

  1. Features
  2. Applications
  3. Description
    1.     4
  4. Revision History
  5. Pin Configuration and Functions
    1.     Pin 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 Switching Characteristics
    8. 6.8 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Minimum On-Time and Off-Time Considerations
      2. 7.3.2  Current Sense and Overcurrent
      3. 7.3.3  Current Sense and Subharmonic Instability
      4. 7.3.4  Current Sense Filtering
      5. 7.3.5  Soft Start
      6. 7.3.6  BP Regulator
      7. 7.3.7  Shutdown (DIS/ EN Pin)
      8. 7.3.8  Control Loop Considerations
      9. 7.3.9  Gate Drive Circuit
      10. 7.3.10 TPS40211-Q1
    4. 7.4 Device Functional Modes
      1. 7.4.1 Setting the Oscillator Frequency
      2. 7.4.2 Synchronizing the Oscillator
  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  Duty Cycle Estimation
        2. 8.2.2.2  Inductor Selection
        3. 8.2.2.3  Rectifier Diode Selection
        4. 8.2.2.4  Output Capacitor Selection
        5. 8.2.2.5  Input Capacitor Selection
        6. 8.2.2.6  Current Sense and Current Limit
        7. 8.2.2.7  Current Sense Filter
        8. 8.2.2.8  Switching MOSFET Selection
        9. 8.2.2.9  Feedback Divider Resistors
        10. 8.2.2.10 Error Amplifier Compensation
        11. 8.2.2.11 R-C Oscillator
        12. 8.2.2.12 Soft-Start Capacitor
        13. 8.2.2.13 Regulator Bypass
      3. 8.2.3 Application Curves
  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 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Related Links
    4. 11.4 Receiving Notification of Documentation Updates
    5. 11.5 Support Resources
    6. 11.6 Trademarks
    7. 11.7 Electrostatic Discharge Caution
    8. 11.8 Glossary
  12. 12Mechanical, Packaging, and Orderable Information
    1.     69

Typical Characteristics

GUID-14EFFE28-7FEC-4D53-9361-3A950F3B62B7-low.gifFigure 6-1 Frequency vs Timing Resistance
GUID-A40381CA-D712-4250-BFD6-DAFCA93BDBA0-low.gifFigure 6-3 Quiescent Current vs Junction Temperature
GUID-E96E06F2-83E3-4E07-9CD5-AD84AD4E4F4D-low.gifFigure 6-5 Reference Voltage Change vs Junction Temperature
GUID-239C0518-034E-4623-A33E-C170996C1330-low.gifFigure 6-7 Undervoltage Lockout Threshold vs Junction Temperature
GUID-AE0C1055-9B79-4783-8C17-C0B78CE1D5D9-low.gifFigure 6-9 Overcurrent Threshold vs Input Voltage
GUID-425FAB34-FCA0-45F9-8D09-B5429D14817A-low.gifFigure 6-11 Oscillator Amplitude vs Junction Temperature
GUID-250EC4BE-63B4-4CC7-8337-7B8859651C23-low.gifFigure 6-13 FB Bias Current vs Junction Temperature
GUID-D7E3758B-5B0F-493D-BD47-CD9B87A79DFD-low.gifFigure 6-15 Compensation Sink Current vs Junction Temperature
GUID-6D72D182-2C2A-43C3-B5A5-3A23DB473777-low.gifFigure 6-17 Regulator Voltage vs Junction Temperature
GUID-BE7D5D67-C2C2-4891-9E56-999F0BD4ACAA-low.gifFigure 6-19 Current-Sense Amplifier Gain vs Junction Temperature
GUID-DA87B99D-6EA4-48E9-B586-0692657B93C6-low.gifFigure 6-2 Switching Frequency vs Duty Cycle
GUID-5AC9315E-7C22-484F-BF58-0F2F99C0B57E-low.gifFigure 6-4 Shutdown Current vs Junction Temperature
GUID-89A4E15E-8E72-423C-A4D0-AF4DDD4E77B1-low.gifFigure 6-6 Reference Voltage Change vs Input Voltage
GUID-A2A9B507-F68F-4182-8A57-3FB88055D6FA-low.gifFigure 6-8 Overcurrent Threshold vs Junction Temperature
GUID-355C2BB6-F7C1-4912-952C-F2D2BEA4946B-low.gifFigure 6-10 Switching Frequency Change vs Junction Temperature
GUID-42C62312-FD6C-4B17-8FE5-B5AA120E0423-low.gifFigure 6-12 Soft-Start Charge and Discharge Resistance vs Junction Temperature
GUID-F0A66592-3A9B-4CD2-8175-4B099A5C51D6-low.gifFigure 6-14 Compensation Source Current vs Junction Temperature
GUID-E844E3A2-4E37-4AC7-9665-8300685CDAED-low.gifFigure 6-16 Valley Voltage Change vs Junction Temperature
GUID-2337548B-2E8E-4BBB-9695-CA41592E9F3D-low.gifFigure 6-18 DIS/ EN Turn-On Threshold vs Junction Temperature