ZHCSFF5G July   2016  – December  2019 TPS2660

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
    1.     简化电路原理图
  3. 3 说明
    1.     –60V 电源时的反向输入极性保护
  4. 4 修订历史记录
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 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
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Undervoltage Lockout (UVLO)
      2. 9.3.2 Overvoltage Protection (OVP)
      3. 9.3.3 Reverse Input Supply Protection
      4. 9.3.4 Hot Plug-In and In-Rush Current Control
      5. 9.3.5 Overload and Short Circuit Protection
        1. 9.3.5.1 Overload Protection
          1. 9.3.5.1.1 Active Current Limiting
          2. 9.3.5.1.2 Electronic Circuit Breaker with Overload Timeout, MODE = OPEN
        2. 9.3.5.2 Short Circuit Protection
          1. 9.3.5.2.1 Start-Up With Short-Circuit On Output
        3. 9.3.5.3 FAULT Response
          1. 9.3.5.3.1 Look Ahead Overload Current Fault Indicator
        4. 9.3.5.4 Current Monitoring
        5. 9.3.5.5 IN, OUT, RTN, and GND Pins
        6. 9.3.5.6 Thermal Shutdown
        7. 9.3.5.7 Low Current Shutdown Control (SHDN)
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Step by Step Design Procedure
        2. 10.2.2.2 Programming the Current-Limit Threshold—R(ILIM) Selection
        3. 10.2.2.3 Undervoltage Lockout and Overvoltage Set Point
        4. 10.2.2.4 Programming Current Monitoring Resistor—RIMON
        5. 10.2.2.5 Setting Output Voltage Ramp Time—(tdVdT)
          1. 10.2.2.5.1 Case 1: Start-Up Without Load—Only Output Capacitance C(OUT) Draws Current During Start-Up
          2. 10.2.2.5.2 Case 2: Start-Up With Load—Output Capacitance C(OUT) and Load Draws Current During Start-Up
          3. 10.2.2.5.3 Support Component Selections—RFLTb and C(IN)
      3. 10.2.3 Application Curves
    3. 10.3 System Examples
      1. 10.3.1 Acive ORing Operation
      2. 10.3.2 Field Supply Protection in PLC, DCS I/O Modules
      3. 10.3.3 Simple 24-V Power Supply Path Protection
    4. 10.4 Do's and Don'ts
  11. 11Power Supply Recommendations
    1. 11.1 Transient Protection
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13器件和文档支持
    1. 13.1 器件支持
    2. 13.2 文档支持
      1. 13.2.1 相关文档
    3. 13.3 接收文档更新通知
    4. 13.4 社区资源
    5. 13.5 商标
    6. 13.6 静电放电警告
    7. 13.7 Glossary
  14. 14机械、封装和可订购信息

9.4 Device Functional Modes

The TPS26600, TPS26601 and TPS26602 respond differently to overload and short circuit conditions. The operational differences are explained in Table 2.

Table 2. Device Operational Differences Under Different MODE Configurations

MODE Pin Configuration MODE Connected to RTN (Current Limit With Auto-Retry) A 402-kΩ Resistor Connected between MODE and RTN Pins (Current Limit With Latchoff) MODE Pin = Open (Circuit Breaker with Auto-Retry - TPS26600 and TPS26602), (Circuit Breaker With Latch - TPS26601 Only)
Start-up Inrush current controlled by dVdT
Inrush limited to I(OL) level as set by R(ILIM) Inrush limited to I(OL) level as set by R(ILIM) Inrush limited to I(OL) level as set by R(ILIM)
Fault timer runs when current is limited to I(OL)
Fault timer expires after tCB(dly) causing the FETs to turnoff
If TJ > T(TSD), device turns off If TJ > T(TSD), device turns off Device turns off if TJ > T(TSD) before timer expires
Overcurrent response Current is limited to I(OL) level as set by R(ILIM) Current is limited to I(OL) level as set by R(ILIM) Current is allowed through the device if I(LOAD) < I(FASTTRIP)
Power dissipation increases as V(IN) – V(OUT) increases Power dissipation increases as V(IN) – V(OUT) increases Fault timer runs when the current increases above I(OL)
Fault timer expires after tCB(dly) causing the FETs to turnoff
Device turns off when TJ > T(TSD) Device turns off when TJ > T(TSD) Device turns off if TJ > T(TSD) before timer expires
Device attempts restart 540 ms after TJ < [T(TSD) – 10°C] Device remains off TPS26600 and TPS26602 attempt restart 540 ms after TJ < [T(TSD) – 10°C]. TPS26601 remains off
Short-circuit response Fast turnoff when I(LOAD) > I(FASTRIP)
Quick restart and current limited to I(OL), follows standard start-up
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