ZHCSOF9B april   2022  – june 2023 TPS25981

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 Switching Characteristics
      1.      16
    8. 7.8 Typical Characteristics
  9. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Undervoltage Lockout (UVLO and UVP)
      2. 8.3.2 Overvoltage Lockout (OVLO)
      3. 8.3.3 Inrush Current, Overcurrent, and Short-Circuit Protection
        1. 8.3.3.1 Slew Rate (dVdt) and Inrush Current Control
        2. 8.3.3.2 Circuit-Breaker During Steady-State
        3. 8.3.3.3 Active Current Limiting During Start-Up
        4. 8.3.3.4 Short-Circuit Protection
      4. 8.3.4 Analog Load Current Monitor
      5. 8.3.5 Overtemperature Protection (OTP)
      6. 8.3.6 Fault Response and Indication (FLT)
      7. 8.3.7 Power Good Indication (PG)
      8. 8.3.8 Quick Output Discharge (QOD)
      9. 8.3.9 Reverse Current Blocking FET Driver
    4. 8.4 Device Functional Modes
  10. Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Single Device, Self-Controlled
      2. 9.1.2 Parallel Operation
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Device Selection
        2. 9.2.2.2 Setting Output Voltage Rise Time (tR)
        3. 9.2.2.3 Setting Overcurrent Threshold (ILIM)
        4. 9.2.2.4 Setting Overcurrent Blanking Interval (tITIMER)
        5. 9.2.2.5 Voltage Drop
      3. 9.2.3 Application Curves
  11. 10Power Supply Recommendations
    1. 10.1 Transient Protection
    2. 10.2 Output Short-Circuit Measurements
  12. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  13. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 接收文档更新通知
    3. 12.3 支持资源
    4. 12.4 Trademarks
    5. 12.5 静电放电警告
    6. 12.6 术语表
  14. 13Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

特性

  • 宽工作输入电压范围:2.7V 至 16V
    • 绝对最大值为 20V
  • 具有低导通电阻的集成 FET:RON = 6mΩ(典型值)
  • 快速过压保护
    • 可调节过压锁定 (OVLO),响应时间为 1.2 μs(典型值)
  • 过流保护,具有负载电流监测器输出 (ILM)
    • 断路器响应
    • 可调节阈值 (ILIM) 1.5A - 11A
      • ILIM > 5A 时精度为 ±10%
    • 可调瞬态消隐计时器 (ITIMER),支持高达 2 × ILIM 的峰值电流
    • 输出负载电流监控精度:±10% (IOUT ≥ 3A)
  • 通过快速跳变响应实现短路保护
    • 响应时间为 640 ns(典型值)
    • 可调节 (2 × ILIM) 和固定阈值
  • 具有可调节欠压锁定阈值 (UVLO) 的高电平有效使能输入
  • 具有可调节欠压锁定阈值 (UVLO) 的低电平有效使能输入
  • 可调节的输出压摆率控制 (dVdt)
  • 可选择驱动外部 FET 以在禁用/关闭状态下实现反向电流阻断

  • 过温保护
  • 快速输出放电
  • 数字输出
    • 电源正常 (PG) 和故障指示 (FLT)

  • UL2367 认证(正在申请中)
  • IEC 62368 CB 认证(正在申请中)
  • 小尺寸:QFN 2mm × 2mm,0.45mm 间距