ZHCSMA7D January   2022  – April 2024 TPS4811-Q1

PRODUCTION DATA  

  1.   1
  2. 特性
  3. 应用
  4. 说明
  5. Device Comparison Table
  6. Pin Configuration and Functions
  7. 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 Switching Characteristics
    7. 6.7 Typical Characteristics
  8. Parameter Measurement Information
  9. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Charge Pump and Gate Driver output (VS, PU, PD, BST, SRC)
      2. 8.3.2  Capacitive Load Driving
        1. 8.3.2.1 FET Gate Slew Rate Control
        2. 8.3.2.2 Using Precharge FET - (with TPS48111-Q1 Only)
      3. 8.3.3  Short-Circuit Protection
        1. 8.3.3.1 Overcurrent Protection With Auto-Retry
        2. 8.3.3.2 Overcurrent Protection With Latch-Off
      4. 8.3.4  Short-Circuit Protection
      5. 8.3.5  Analog Current Monitor Output (IMON)
      6. 8.3.6  Overvoltage (OV) and Undervoltage Protection (UVLO)
      7. 8.3.7  Device Functional Mode (Shutdown Mode)
      8. 8.3.8  Remote Temperature sensing and Protection (DIODE)
      9. 8.3.9  Output Reverse Polarity Protection
      10. 8.3.10 TPS4811x-Q1 as a Simple Gate Driver
  10. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application: Driving HVAC PTC Heater Load on KL40 Line in Power Distribution Unit
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
    3. 9.3 Typical Application: Driving B2B FETs With Pre-charging the Output Capacitance
      1. 9.3.1 Design Requirements
      2. 9.3.2 External Component Selection
      3. 9.3.3 Application Curves
    4. 9.4 Power Supply Recommendations
    5. 9.5 Layout
      1. 9.5.1 Layout Guidelines
      2. 9.5.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 接收文档更新通知
    2. 10.2 支持资源
    3. 10.3 Trademarks
    4. 10.4 静电放电警告
    5. 10.5 术语表
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

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Application Curves

TPS4811-Q1 Start-Up Profile of
                        Bootstrap Voltage for INP = GND and CBST = 470 nFFigure 9-2 Start-Up Profile of Bootstrap Voltage for INP = GND and CBST = 470 nF
TPS4811-Q1 Turn-ON Response of
                        TPS48110-Q1 for INP -> LOW to HIGH and CBST = 470 nFFigure 9-4 Turn-ON Response of TPS48110-Q1 for INP -> LOW to HIGH and CBST = 470 nF
TPS4811-Q1 Overvoltage Cut-off
                        Response at 58-V Level of TPS48110-Q1Figure 9-6 Overvoltage Cut-off Response at 58-V Level of TPS48110-Q1
TPS4811-Q1 IMON Response During 10-A Load StepFigure 9-8 IMON Response During 10-A Load Step
TPS4811-Q1 Auto-Retry Response of
                        TPS48110-Q1 for an Overcurrent FaultFigure 9-10 Auto-Retry Response of TPS48110-Q1 for an Overcurrent Fault
TPS4811-Q1 Response During Coming Out
                        of Overload Fault With INP ResetFigure 9-12 Response During Coming Out of Overload Fault With INP Reset
TPS4811-Q1 Start-Up Profile of
                        Bootstrap Voltage for INP = HIGH and CBST = 470 nFFigure 9-3 Start-Up Profile of Bootstrap Voltage for INP = HIGH and CBST = 470 nF
TPS4811-Q1 Turn-OFF Response of
                        TPS48110-Q1 for INP -> HIGH to LOW and CBST = 470 nFFigure 9-5 Turn-OFF Response of TPS48110-Q1 for INP -> HIGH to LOW and CBST = 470 nF
TPS4811-Q1 Load Switching at 100 Hz
                        With TPS48110-Q1Figure 9-7 Load Switching at 100 Hz With TPS48110-Q1
TPS4811-Q1 Overcurrent Response of
                        TPS48110-Q1 for a Load Step from 5 A to 18 A With 15-A Overcurrent
                        Protection SettingFigure 9-9 Overcurrent Response of TPS48110-Q1 for a Load Step from 5 A to 18 A With 15-A Overcurrent Protection Setting
TPS4811-Q1 Latch-off Response of
                        TPS48110-Q1 for an Overcurrent FaultFigure 9-11 Latch-off Response of TPS48110-Q1 for an Overcurrent Fault
TPS4811-Q1 Output Hot-Short Response
                        of the TPS48110-Q1 DeviceFigure 9-13 Output Hot-Short Response of the TPS48110-Q1 Device