SLUSCO8B November   2016  – June 2018 TPS54200 , TPS54201

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
      2.      Excellent Deep Dimming in ADIM
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Switching Characteristics
    8. 7.8 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Fixed-Frequency PWM Control
      2. 8.3.2  Error Amplifier
      3. 8.3.3  Slope Compensation and Output Current
      4. 8.3.4  Input Undervoltage Lockout
      5. 8.3.5  Voltage Reference
      6. 8.3.6  Setting LED Current
      7. 8.3.7  Internal Soft Start
      8. 8.3.8  Bootstrap Voltage (BOOT)
      9. 8.3.9  Overcurrent Protection
        1. 8.3.9.1 High-Side MOSFET Overcurrent Protection
        2. 8.3.9.2 Low-Side MOSFET Overcurrent Protection
        3. 8.3.9.3 Low-Side MOSFET Reverse Overcurrent Protection
      10. 8.3.10 Fault Protection
        1. 8.3.10.1 LED-Open Protection
        2. 8.3.10.2 LED Short Protection
        3. 8.3.10.3 Sense-Resistor Short Protection
        4. 8.3.10.4 Sense-Resistor Open Protection
        5. 8.3.10.5 Overvoltage Protection
        6. 8.3.10.6 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable and Disable Device
      2. 8.4.2 Mode Detection
      3. 8.4.3 Analog Dimming Mode Operation
      4. 8.4.4 PWM Dimming-Mode Operation
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 TPS5420x 12-V Input, 1.5-A, 3-Piece IR LED Driver With Analog Dimming
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Inductor Selection
          2. 9.2.1.2.2 Input Capacitor Selection
          3. 9.2.1.2.3 Output Capacitor Selection
          4. 9.2.1.2.4 FB Pin RC Filter Selection
          5. 9.2.1.2.5 Sense Resistor Selection
        3. 9.2.1.3 Application Curves
      2. 9.2.2 TPS5420x 24-V Input, 1-A, 4-Piece WLED Driver With PWM Dimming
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1 Inductor Selection
          2. 9.2.2.2.2 Input Capacitor Selection
          3. 9.2.2.2.3 Output Capacitor Selection
          4. 9.2.2.2.4 FB Pin RC Filter Selection
          5. 9.2.2.2.5 Sense Resistor Selection
        3. 9.2.2.3 Application Curves
  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 Links
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Community Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

4 Revision History

Changes from A Revision (March 2017) to B Revision

  • Changed "Hiccup Mode" to "Auto-Retry Mode" in the Features section and throughout the data sheet Go
  • Changed the package descriptionGo
  • Changed the Applications sectionGo
  • Changed "WLED" to "mono-color or IR LED" in the first sentence of the Description sectionGo
  • Changed package descriptor from SOT23 to SOT-23-THIN in the Device Information tableGo
  • Changed pinout diagram and associated textGo
  • Changed "PWM duty input" to "PWM input duty cycle" in the Pin Functions tableGo
  • Changed "free-air" to "ambient" in the Absolute Maximum Ratings condition statementGo
  • Changed "free-air" to "ambient" in the Recommended Operating Conditions condition statementGo
  • Changed the package description in the Thermal Information table headerGo
  • Changed "Rising" and "Falling" to "Rising VPWM" and "Falling VPWM" for the VADIM, VPDIM, and VPWMElectrical Characteristics table entriesGo
  • Changed "SW" to "VSW" in the Test Conditions column for the RHSD entry in the Electrical Characteristics tableGo
  • Changed "dim mode" to "dimming mode" in the Test Conditions column for the ILIM_HS1 entry in the Electrical Characteristics tableGo
  • Changed the symbol for switching frequency from FSW to fSWGo
  • Changed VIN to VVIN in the Typical Characteristics condition statementGo
  • Changed "hiccup up mode" to "auto-retry mode" Go
  • Changed "duty" to "duty cycle" in multiple locations throughout the data sheetGo
  • Changed "PWM duty" to "PWM duty cycle" in the Figure 16 imageGo
  • Changed "floating driver" to "boot regulator" in the Bootstrap Voltage (BOOT) section Go
  • Changed VIN to VVIN in multiple locations throughout the data sheetGo
  • Changed various wording in the High-Side MOSFET Overcurrent Protection section for clarity, and changed "512 switching cycles " to "tSHUTDOWN_DELAY" Go
  • Changed "hiccup up" to "auto-retry mode" in the Fault Protection sectionGo
  • Changed "hiccup" to "auto-retry" or "shuddown -and-restart," and deleted "programmed for XXX switching cycles" textGo
  • Changed "will be clamped by low" to "is clamped at the low-"Go
  • Changed "hiccup" to "auto-retry" or "shuddown -and-restart," and deleted "programmed for XXX switching cycles" textGo
  • Changed "hiccup" to "auto-retry" or "shuddown -and-restart," and deleted "programmed for XXX switching cycles" textGo
  • Changed "hiccup" to "auto-retry" or "shuddown -and-restart," and deleted "programmed for XXX switching cycles" textGo
  • Changed "Recycle VIN can reset" to "Cycling VIN resets"Go
  • Changed "once the device shuts down, it starts" to "a device shutdown starts"Go
  • Changed "hiccup" to "auto-retry" or "shuddown -and-restart," and deleted "programmed for XXX switching cycles" textGo
  • Changed "hiccup" to "auto-retry" or "shuddown -and-restart," and deleted "programmed for XXX switching cycles" textGo
  • Changed "Vin at" to "VVIN"Go
  • Changed "VADIM" to "VADIM" and "VPDIM" to "VPDIM"Go
  • Changed "it's" to "the output is"Go
  • Changed "VIN" to "VIN" and "recycled" to "cycled" at the end of the Mode DetectionGo
  • Changed "a little big" to "excessive" in the Analog Dimming Mode Operation sectionGo
  • Changed "PWM duty cycle" to "PWM state"Go
  • Changed "12-VIN" to "12-V VVIN"Go
  • Changed "FSW" to "fSW" and "VIN(max)" to "VVIN(max)" in Equation 3 from F to fGo
  • Changed "FSW" to "fSW" and "VIN(ripple)" to "VVIN(ripple)" in Equation 8 from F to fGo
  • Changed the symbol for frequency in Equation 11 from F to fGo
  • Changed "RF" to "RF" and "CF" to "CF"Go
  • Changed "VOUT" to "VOUT" in the conditions of multiple application curvesGo
  • Changed the wording of the second and third paragraphs of the Inductor Selection section for clarityGo
  • Changed the symbol for frequency in Equation 14 from F to fGo
  • Changed "wide areas advantages" to "added width also"Go
  • Changed "reduce the possibility" to "minimize"Go
  • Added the Device Support and Documentation Support sectionsGo

Changes from * Revision (November 2016) to A Revision

  • Added initial release of the TPS54201 device.Go
  • Changed description to include protection modes.Go
  • Changed ILIM_HS1 and ILIM_HS2 CURRENT LIMIT.Go
  • Changed the low-side source-current limit from (2.4/3.4/4.4) to (2.3/3.3/4.4), Go
  • Added TPS54201 tHIC_THERMAL, tHIC_OV and tHIC_WAIT Timing Requirements.Go
  • Added TPS54201 LED Short Protection image.Go
  • Added TPS54201 LED Open Protection image. Go
  • Added TPS54201 Sense Resistor Short Protection image. Go