SLVSDD9 March   2017 TPS92692 , TPS92692-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 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Internal Regulator and Undervoltage Lockout (UVLO)
      2. 7.3.2  Oscillator
      3. 7.3.3  Spread Spectrum Frequency Modulation
      4. 7.3.4  Gate Driver
      5. 7.3.5  Rail-to-Rail Current Sense Amplifier
      6. 7.3.6  Transconductance Error Amplifier
      7. 7.3.7  Switch Current Sense
      8. 7.3.8  Slope Compensation
      9. 7.3.9  Analog Adjust Input
      10. 7.3.10 DIM/PWM Input
      11. 7.3.11 Series P-Channel FET Dimming Gate Driver Output
      12. 7.3.12 Soft-Start
      13. 7.3.13 Current Monitor Output
      14. 7.3.14 Output Overvoltage Protection
      15. 7.3.15 Output Short-circuit Protection
      16. 7.3.16 Thermal Protection
      17. 7.3.17 Fault Indicator (FLT)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Hiccup Mode Short-circuit Protection
      2. 7.4.2 Fault Indication Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1  Duty Cycle Considerations
      2. 8.1.2  Inductor Selection
      3. 8.1.3  Output Capacitor Selection
      4. 8.1.4  Input Capacitor Selection
      5. 8.1.5  Main Power MOSFET Selection
      6. 8.1.6  Rectifier Diode Selection
      7. 8.1.7  LED Current Programming
      8. 8.1.8  Switch Current Sense Resistor
      9. 8.1.9  Slope Compensation
      10. 8.1.10 Feedback Compensation
      11. 8.1.11 Soft-Start
      12. 8.1.12 Overvoltage and Undervoltage Protection
      13. 8.1.13 Analog to PWM Dimming Considerations
      14. 8.1.14 Direct PWM Dimming Considerations
      15. 8.1.15 Series P-Channel MOSFET Selection
    2. 8.2 Typical Applications
      1. 8.2.1 Typical Boost LED Driver
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1  Calculating Duty Cycle
          2. 8.2.1.2.2  Setting Switching Frequency
          3. 8.2.1.2.3  Setting Dither Modulation Frequency
          4. 8.2.1.2.4  Inductor Selection
          5. 8.2.1.2.5  Output Capacitor Selection
          6. 8.2.1.2.6  Input Capacitor Selection
          7. 8.2.1.2.7  Main N-Channel MOSFET Selection
          8. 8.2.1.2.8  Rectifying Diode Selection
          9. 8.2.1.2.9  Programming LED Current
          10. 8.2.1.2.10 Setting Switch Current Limit
          11. 8.2.1.2.11 Programming Slope Compensation
          12. 8.2.1.2.12 Deriving Compensator Parameters
          13. 8.2.1.2.13 Setting Start-up Duration
          14. 8.2.1.2.14 Setting Overvoltage Protection Threshold
          15. 8.2.1.2.15 Analog-to-PWM Dimming Considerations
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Typical Buck-Boost LED Driver
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
          1. 8.2.2.2.1  Calculating Duty Cycle
          2. 8.2.2.2.2  Setting Switching Frequency
          3. 8.2.2.2.3  Setting Dither Modulation Frequency
          4. 8.2.2.2.4  Inductor Selection
          5. 8.2.2.2.5  Output Capacitor Selection
          6. 8.2.2.2.6  Input Capacitor Selection
          7. 8.2.2.2.7  Main N-Channel MOSFET Selection
          8. 8.2.2.2.8  Rectifier Diode Selection
          9. 8.2.2.2.9  Programming LED Current
          10. 8.2.2.2.10 Setting Switch Current Limit and Slope Compensation
          11. 8.2.2.2.11 Programming Slope Compensation
          12. 8.2.2.2.12 Deriving Compensator Parameters
          13. 8.2.2.2.13 Setting Startup Duration
          14. 8.2.2.2.14 Setting Overvoltage Protection Threshold
          15. 8.2.2.2.15 Direct PWM Dimming Consideration
        3. 8.2.2.3 Application Curves
  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 Related Links
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

9 Power Supply Recommendations

This device is designed to operate from an input voltage supply range between 4.5 V and 65 V. The input could be a car battery or another preregulated power supply. If the input supply is located more than a few inches from the TPS92692 or TPS92692-Q1 device, additional bulk capacitance or an input filter may be required in addition to the ceramic bypass capacitors to address noise and EMI concerns.

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