ZHCSQ76 December   2022 TPS25961

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 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 Timing Requirements
    7. 6.7 Switching Characteristics
    8. 6.8 典型特性
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 欠压保护 (UVP) 和欠压锁定 (UVLO)
      2. 7.3.2 Overvoltage Protection
      3. 7.3.3 Inrush Current, Overcurrent and Short Circuit Protection
        1. 7.3.3.1 Slew Rate and Inrush Current Control (dVdt)
        2. 7.3.3.2 Active Current Limiting
        3. 7.3.3.3 Short-Circuit Protection
      4. 7.3.4 Overtemperature Protection (OTP)
      5. 7.3.5 Fault Response
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 典型应用
      1. 8.2.1 Adapter input protection for set-top boxes
      2. 8.2.2 Design Requirements
      3. 8.2.3 Detailed Design Procedure
        1. 8.2.3.1 Programming the Current-Limit Threshold: RILM Selection
        2. 8.2.3.2 欠压和过压锁定设定点
        3. 8.2.3.3 Output Voltage Rise Time (tR)
      4. 8.2.4 Application Curves
    3. 8.3 Application Example
      1. 8.3.1 Application Curves
    4. 8.4 Power Supply Recommendations
      1. 8.4.1 瞬态保护
      2. 8.4.2 Output Short-Circuit Measurements
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  9. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 接收文档更新通知
    3. 9.3 支持资源
    4. 9.4 商标
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 术语表
  10. 10Mechanical, Packaging, and Orderable Information

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

8.2.3.1 Programming the Current-Limit Threshold: RILM Selection

The RILM resistor at the ILM pin sets the over load current limit. Since required current limit of 2 A is greater than 200 mA, below Equation 6 for current limit can be used for calculating RILIM.

Equation 6. R ILIM   =  50000 I LIM  

Closest standard value resistor is 25.5 kΩ with 1% tolerance. It is recommended that final RILM selected does not lie in the ranges mentioned in Table 7-1. Final value of 25.5 kΩ does not lie in those non-recommended ranges and is fine to use in design.
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