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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特性

  • 具有符合 AEC-Q100 标准的下列特性
    • 器件温度等级 1:
      –40°C 至 +125°C 环境工作温度范围
  • 功能安全型
  • 3.5V 至 80V 输入范围(绝对最大值为 100V)
  • 输出反极性保护低至 –30V
  • 具有 100µA 容量的集成 12V 电荷泵
  • 1.6µA 低关断电流(EN/UVLO = 低电平)
  • 强大的上拉 (3.7A) 和下拉 (4A) 栅极驱动器
  • 驱动外部背对背 N 沟道 MOSFET
  • 具有集成预充电开关驱动器 (TPS48111-Q1) 以驱动容性负载的型号
  • 具有可调断路器计时器 (TMR) 和故障标志输出 (FLT_I) 的两级可调过流保护 (IWRN、ISCP)
  • 快速短路保护:1.2µs (TPS48111-Q1)、4µs (TPS48110-Q1)
  • 精确的模拟电流监测输出 (IMON):
    30mV 时为 ±2% (VSNS)

  • 精确的可调节欠压锁定 (UVLO) 和过压保护 (OV): < ±2%
  • 具有故障标志输出 (FLT_T) 的远程过热检测 (DIODE)