ZHCSIV1F September   2018  – February 2023 TPS1663

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and 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  Hot Plug-In and In-Rush Current Control
        1. 9.3.1.1 Thermal Regulation Loop
      2. 9.3.2  Undervoltage Lockout (UVLO)
      3. 9.3.3  Overvoltage Protection (OVP)
      4. 9.3.4  Overload and Short Circuit Protection
        1. 9.3.4.1 Overload Protection
        2. 9.3.4.2 Short Circuit Protection
          1. 9.3.4.2.1 Start-Up With Short-Circuit On Output
      5. 9.3.5  Output Power Limiting, PLIM (TPS16632 Only)
      6. 9.3.6  Current Monitoring Output (IMON)
      7. 9.3.7  FAULT Response (FLT)
      8. 9.3.8  Power Good Output (PGOOD)
      9. 9.3.9  IN, P_IN, OUT and GND Pins
      10. 9.3.10 Thermal Shutdown
      11. 9.3.11 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 Programming the Current-Limit Threshold R(ILIM) Selection
        2. 10.2.2.2 Undervoltage Lockout and Overvoltage Set Point
        3. 10.2.2.3 Setting Output Voltage Ramp Time (tdVdT)
          1. 10.2.2.3.1 Support Component Selections RPGOOD and C(IN)
      3. 10.2.3 Application Curves
    3. 10.3 System Examples
      1. 10.3.1 Simple 24-V Power Supply Path Protection
    4. 10.4 Power Supply Recommendations
      1. 10.4.1 Transient Protection
    5. 10.5 Layout
      1. 10.5.1 Layout Guidelines
      2. 10.5.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 接收文档更新通知
    3. 11.3 支持资源
    4. 11.4 Trademarks
    5. 11.5 静电放电警告
    6. 11.6 术语表
  12. 12Mechanical, Packaging, and Orderable Information

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • RGE|24
  • PWP|20
散热焊盘机械数据 (封装 | 引脚)

9.3.1 Hot Plug-In and In-Rush Current Control

The devices are designed to control the in-rush current upon insertion of a card into a live backplane or other hot power source. This design limits the voltage sag on the backplane’s supply voltage and prevents unintended resets of the system power. The controlled start-up also helps to eliminate conductive and radiative interferences. An external capacitor connected from the dVdT pin to GND defines the slew rate of the output voltage at power-on. The fastest output slew rate of 24 V/500 µs can be achieved by leaving dVdT pin floating. The inrush current can be calculated using Equation 1.

Equation 1. GUID-B63BC17D-D2FB-4F5D-BEFD-2EB5DF40DAB4-low.gif

where

Equation 2. tdVdT = 20.8 × 103 × V(IN) × C(dVdT)

Figure 9-1 illustrates in-rush current control performance of the device during Hot Plug-In.

GUID-F3CE4283-5015-490E-BA27-FE98E63D371F-low.gif
CdVdT = 100 nFCOUT = 1000 µFRILIM = 4.02 kΩ
Figure 9-1 Hot Plug In and In-Rush Current Control at 24-V Input