ZHCSJQ2A May   2019  – August 2019 TPS2596

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化原理图
      2.      TPS25963x 1KV EFT 响应
  4. 4 修订历史记录
  5. 5 器件比较表
  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 Switching Characteristics
    8. 7.8 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Undervoltage Protection (UVP) and Undervoltage Lockout (UVLO)
      2. 8.3.2 Overvoltage Protection
        1. 8.3.2.1 Overvoltage Lockout
        2. 8.3.2.2 Overvoltage Clamp
      3. 8.3.3 Inrush Current, Overcurrent and Short Circuit Protection
        1. 8.3.3.1 Slew Rate and Inrush Current Control (dVdt)
        2. 8.3.3.2 Active Current Limiting
        3. 8.3.3.3 Short-Circuit Protection
      4. 8.3.4 Analog Load Current Monitor (IMON)
      5. 8.3.5 Overtemperature Protection (OTP)
      6. 8.3.6 Fault Indication
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable and Fault Pin Functional Mode 1: Single Device, Self-Controlled
      2. 8.4.2 Enable and Fault Pin Functional Mode 2: Single Device, Host-Controlled
      3. 8.4.3 Enable and Fault Pin Functional Mode 3: Multiple Devices, Self-Controlled
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Precision Current Limiting and Protection for White Goods
      2. 9.2.2 Design Requirements
      3. 9.2.3 Detailed Design Procedure
        1. 9.2.3.1 Programming the Current-Limit Threshold: RILM Selection
        2. 9.2.3.2 Undervoltage and Overvoltage Lockout Set Point
        3. 9.2.3.3 Setting Output Voltage Ramp Time (TdVdT)
          1. 9.2.3.3.1 Case 1: Start-Up Without Load. Only Output Capacitance COUT Draws Current
          2. 9.2.3.3.2 Case 2: Start-Up With Load. Output Capacitance COUT and Load Draw Current
      4. 9.2.4 Support Component Selection: RFLT and CIN
      5. 9.2.5 Application Curves
    3. 9.3 System Examples
      1. 9.3.1 Current Limiting and Overvoltage Protection and for Energy Meter Power Rails
      2. 9.3.2 Precision Current Limiting and Protection in Appliances
  10. 10Power Supply Recommendations
    1. 10.1 Transient Protection
    2. 10.2 Output Short-Circuit Measurements
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 文档支持
      1. 12.1.1 相关文档
    2. 12.2 接收文档更新通知
    3. 12.3 社区资源
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 Glossary
  13. 13机械、封装和可订购信息

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

8.3.6 Fault Indication

Table 3 summarizes the protection response to various fault conditions.

Table 3. Fault Response

Event / Fault Protection Response FLT Asserted FLT Delay
Overtemperature Shutdown Yes
Undervoltage Cut-off No
Overvoltage Clamp (OVC - TPS25962x only) No
Cut-off (OVLO - TPS25963x only) Yes tOVLO
Overcurrent Current Limit No
Short-Circuit Current Limit No
ILM Pin Short to GND Shut down Yes
ILM Pin Open Shut down No

When the device turns off due to one of these fault conditions, the FLT pin is pulled low.

Power cycling the part or pulling the EN/UVLO pin voltage below VSD clears the fault and the FLT pin is de-asserted. It also clears the tTSD,RST timer (Auto-retry variants only). Pulling the EN/UVLO just below the UVLO threshold (VUVLO(F)) has no impact on the device in this condition. This is true for both Latch-off (TPS2596x0) and Auto-retry (TPS2596x1) variants.

For Auto-retry (TPS2596x1) variants, at the end of the tTSD,RST timer after a fault, the device restarts automatically and the FLT pin is de-asserted.

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