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

Typical Characteristics

TPS4811-Q1 Shutdown Supply Current vs Supply Voltage
 
Figure 6-1 Shutdown Supply Current vs Supply Voltage
TPS4811-Q1 Charge Pump Current vs Charge Pump Voltage
 
Figure 6-3 Charge Pump Current vs Charge Pump Voltage
TPS4811-Q1 BST
                                                  Loading Current (I(BST)) vs
                                                  Temperature
V(BST) = 15 V V(SRC) = 0 V 
Figure 6-5 BST Loading Current (I(BST)) vs Temperature
TPS4811-Q1 Overcurrent Threshold (V(SNS_WRN)) vs Temperature
 
Figure 6-7 Overcurrent Threshold (V(SNS_WRN)) vs Temperature
TPS4811-Q1 Current Monitor Output
                            (V(IMON)) vs Sense Voltage (VSNS)
RIMON = 5 kΩ RSET = 100 Ω
Figure 6-9 Current Monitor Output (V(IMON)) vs Sense Voltage (VSNS)
TPS4811-Q1 OV Pin Voltage vs Leakage Current
 
Figure 6-11 OV Pin Voltage vs Leakage Current
TPS4811-Q1 Input Supply POR Thresholds vs
                                                  Temperature
 
Figure 6-13 Input Supply POR Thresholds vs Temperature
TPS4811-Q1 Overvoltage Thresholds vs
                                                  Temperature
 
Figure 6-15 Overvoltage Thresholds vs Temperature
TPS4811-Q1 Operating Quiescent Current vs Supply Voltage
 
Figure 6-2 Operating Quiescent Current vs Supply Voltage
TPS4811-Q1 Charge Pump Current vs Input Supply Voltage
 
Figure 6-4 Charge Pump Current vs Input Supply Voltage
TPS4811-Q1 Charge Pump UVLO
                                                  Thresholds vs Temperature
 
Figure 6-6 Charge Pump UVLO Thresholds vs Temperature
TPS4811-Q1 Short-Circuit Threshold
                                                  (V(SNS_SCP)) vs Temperature
 
Figure 6-8 Short-Circuit Threshold (V(SNS_SCP)) vs Temperature
TPS4811-Q1 EN/UVLO Pin Voltage vs Current
 
Figure 6-10 EN/UVLO Pin Voltage vs Current
TPS4811-Q1 Short-Circuit Protection
                                                  Response Time (tSC) vs
                                                  Temperature
 
Figure 6-12 Short-Circuit Protection Response Time (tSC) vs Temperature
TPS4811-Q1 Input Supply UVLO
                                                  Thresholds vs Temperature
 
Figure 6-14 Input Supply UVLO Thresholds vs Temperature