ZHCSO95B june   2022  – may 2023 TPS1641

PRODUCTION DATA  

  1.   1
  2. 特性
  3. 应用
  4. 说明
  5. Revision History
  6. Device Comparison Table
  7. Pin Configuration and Functions
  8. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  9. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Enable and Shutdown Input (EN/SHDN)
      2. 8.3.2  Overvoltage Protection (OVP)
      3. 8.3.3  Output Slew Rate and Inrush Current Control (dVdt)
      4. 8.3.4  Active Current Limiting (ILIM) With the TPS16412, TPS16413, TPS16416, and TPS16417
      5. 8.3.5  Active Power Limiting (PLIM) With the TPS16410, TPS16411, TPS16414, and TPS16415
        1. 8.3.5.1 Internal Current Limit for the TPS16410 and TPS16411
      6. 8.3.6  Overcurrent Protection (IOCP) and Blanking Time (IDLY or PDLY) for Transient Loads
      7. 8.3.7  Fast-Trip and Short-Circuit Protection
      8. 8.3.8  Analog Load Current Monitor (IMON) on the IOCP Pin
      9. 8.3.9  IN to OUT Short Detection (TPS16410, TPS16411, TPS16412, and TPS16413)
      10. 8.3.10 Thermal Shutdown and Overtemperature Protection
      11. 8.3.11 Fault Response and Indication (FLT)
    4. 8.4 Device Functional Modes
  10. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application: 15-W Power Limiting for Low Power Circuits (LPCs)
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Setting Overvoltage Setpoints
        2. 9.2.2.2 Setting the Output Overcurrent Setpoint (IOCP)
        3. 9.2.2.3 Setting the Output Power Limit
        4. 9.2.2.4 Monitoring the Output Current
        5. 9.2.2.5 Limiting the Inrush Current and Setting the Output Slew Rate
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
      1. 9.3.1 Accurate Power or Current Limiting at the Output of DC/DC or Flyback Converter
    4. 9.4 Best Design Practices
    5. 9.5 Power Supply Recommendations
      1. 9.5.1 Transient Protection
    6. 9.6 Layout
      1. 9.6.1 Layout Guidelines
      2. 9.6.2 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. 11Mechanical, Packaging, and Orderable Information

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特性

  • 工作电压范围 (IN):
    • 4.5V 至 40V(功率限制器件)
    • 2.7V 至 40V(电流限制器件)
  • 输出端可耐受高达 -1V 的负电压
  • 超低导通电阻:RON = 152mΩ(典型值)
  • 2W 至 64W 功率限制
  • 0.03A 至 1.8A 电流限制
  • FLT引脚上的 IN 到 OUT 短路检测和指示
  • 用于诊断和驱动外部 PFET 的 FLT 输出
  • 15W 时 ±5% 精确功率限制(功率限制器件)
  • 1A 时 ±6% 精确电流限制(电流限制器件)
  • 可配置的过压保护
  • 可配置过流保护 (IOCP)
  • 可针对瞬态电流配置消隐时间
  • 通过外部 FET 提供高达 60V 的过压保护
  • 可调节输出压摆率控制 (dVdt),用于提供浪涌电流保护
  • 使能和关断控制
  • IOCP 引脚上的输出负载电流监控
  • 具有热关断功能的过热保护 (OTP)
  • 小尺寸: QFN 3 × 3mm,0.5mm 间距