JAJSP12 July   2024 LM5190-Q1

ADVANCE INFORMATION  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 Pin Configuration and Functions
    1. 4.1 Wettable Flanks
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings 
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  Input Voltage Range (VIN)
      2. 6.3.2  High-Voltage Bias Supply Regulator (VCC, BIAS)
      3. 6.3.3  Precision Enable (EN)
      4. 6.3.4  Power-Good Monitor (PGOOD)
      5. 6.3.5  Switching Frequency (RT)
      6. 6.3.6  Low Dropout Mode
      7. 6.3.7  Dual Random Spread Spectrum (DRSS)
      8. 6.3.8  Soft Start
      9. 6.3.9  Output Voltage Setpoint (FB)
      10. 6.3.10 Minimum Controllable On Time
      11. 6.3.11 Inductor Current Sense (ISNS+, VOUT)
      12. 6.3.12 Voltage Loop Error Amplifier
      13. 6.3.13 Current Monitor, Programmable Current Limit, and Current Loop Error Amplifier (IMON/ILIM, ISET)
      14. 6.3.14 Dual Loop Architecture
      15. 6.3.15 PWM Comparator
      16. 6.3.16 Slope Compensation
      17. 6.3.17 High-Side and Low-Side Gate Drivers (HO, LO)
    4. 6.4 Device Functional Modes
      1. 6.4.1 Sleep Mode
      2. 6.4.2 Forced PWM Mode and Synchronization (FPWM/SYNC)
      3. 6.4.3 Thermal Shutdown
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Power Train Components
        1. 7.1.1.1 Buck Inductor
        2. 7.1.1.2 Output Capacitors
        3. 7.1.1.3 Input Capacitors
        4. 7.1.1.4 Power MOSFETs
        5. 7.1.1.5 EMI Filter
      2. 7.1.2 Error Amplifier and Compensation
    2. 7.2 Typical Applications
      1. 7.2.1 High Efficiency 400kHz CC-CV Regulator
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
          1. 7.2.1.2.1 Custom Design With Excel Quickstart Tool
          2. 7.2.1.2.2 Recommended Components
        3. 7.2.1.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 Power Stage Layout
        2. 7.4.1.2 Gate-Drive Layout
        3. 7.4.1.3 PWM Controller Layout
        4. 7.4.1.4 Thermal Design and Layout
        5. 7.4.1.5 Ground Plane Design
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
        1. 8.2.1.1 PCB Layout Resources
        2. 8.2.1.2 Thermal Design Resources
    3. 8.3 ドキュメントの更新通知を受け取る方法
    4. 8.4 サポート・リソース
    5. 8.5 Trademarks
    6. 8.6 静電気放電に関する注意事項
    7. 8.7 用語集
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Tape and Reel Information

7.2.1.3 Application Curves

LM5190-Q1 FPWM Mode Efficiency, Linear ScaleFigure 7-5 FPWM Mode Efficiency, Linear Scale
LM5190-Q1 Start-Up, EN ON, VSUPPLY = 48V, ILOAD = 8A Resistive LoadFigure 7-7 Start-Up, EN ON, VSUPPLY = 48V, ILOAD = 8A Resistive Load
LM5190-Q1 Output Ripple, , VSUPPLY = 48V, ILOAD = 8AFigure 7-9 Output Ripple, , VSUPPLY = 48V, ILOAD = 8A
LM5190-Q1 Load Transient Response, VSUPPLY = 48V, FPWM, 0A to 4AFigure 7-11 Load Transient Response, VSUPPLY = 48V, FPWM, 0A to 4A
LM5190-Q1 ISET Modulation, VSUPPLY = 48V, RLOAD = 1.35ΩFigure 7-13 ISET Modulation, VSUPPLY = 48V, RLOAD = 1.35Ω
LM5190-Q1 PFM Mode Efficiency, Log ScaleFigure 7-6 PFM Mode Efficiency, Log Scale
LM5190-Q1 Shutdown, EN OFF, VSUPPLY = 48V, ILOAD = 8A Resistive LoadFigure 7-8 Shutdown, EN OFF, VSUPPLY = 48V, ILOAD = 8A Resistive Load
LM5190-Q1 No Load Operation in PFM Mode, VSUPPLY = 48V, ILOAD = 0AFigure 7-10 No Load Operation in PFM Mode, VSUPPLY = 48V, ILOAD = 0A
LM5190-Q1 Load Transient Response, VSUPPLY = 48V, PFM, 0A to 4AFigure 7-12 Load Transient Response, VSUPPLY = 48V, PFM, 0A to 4A
LM5190-Q1 VSUPPLY = 48V, ILOAD = 8A, TA = 25°C, No AirflowFigure 7-14 VSUPPLY = 48V, ILOAD = 8A, TA = 25°C, No Airflow