SLVSFR1 August   2020 TPS25980

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     7
  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 (UVLO and UVP)
      2. 8.3.2 Overvoltage Protection (OVP)
      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 Circuit Breaker
        3. 8.3.3.3 Short-Circuit Protection
      4. 8.3.4 Overtemperature Protection (OTP)
      5. 8.3.5 Analog Load Current Monitor (IMON)
      6. 8.3.6 Power Good (PG)
      7. 8.3.7 Load Detect/Handshake (LDSTRT)
    4. 8.4 Fault Response
    5. 8.5 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application: Patient Monitoring System in Medical Applications
      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 the Current Limit Threshold: RILIM Selection
        3. 9.2.2.3 Setting the Undervoltage Lockout Set Point
        4. 9.2.2.4 Choosing the Current Monitoring Resistor: RIMON
        5. 9.2.2.5 Setting the Output Voltage Ramp Time (TdVdt)
          1. 9.2.2.5.1 Case 1: Start-Up Without Load: Only Output Capacitance COUT Draws Current
          2. 9.2.2.5.2 Case 2: Start-Up With Load: Output Capacitance COUT and Load Draw Current
        6. 9.2.2.6 Setting the Load Handshake (LDSTRT) Delay
        7. 9.2.2.7 Setting the Transient Overcurrent Blanking Interval (tITIMER)
        8. 9.2.2.8 Setting the Auto-Retry Delay and Number of Retries
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
      1. 9.3.1 Optical Module Power Rail Path Protection
        1. 9.3.1.1 Design Requirements
        2. 9.3.1.2 Device Selection
        3. 9.3.1.3 External Component Settings
        4. 9.3.1.4 Voltage Drop
        5. 9.3.1.5 Application Curves
      2. 9.3.2 Input Protection for 12-V Rail Applications: PCIe Cards, Storage Interfaces and DC Fans
  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. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
        1. 12.1.1.1 Related Links
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9.2.3 Application Curves

GUID-F96D4A86-A6F1-4DF3-90E8-A973F68C97AF-low.png
COUT = 1.4 mFCdVdt = 10 nFRL(SU) = Open
Figure 9-3 Hot-Plug Start-Up Without Load on Output - dVdt Limited
GUID-20200807-CA0I-XQTZ-G9Z0-16WWRX2N7DK7-low.gif
RILIM = 182 Ω CITIMER = 4.7 nF
Figure 9-5 Circuit Breaker With Transient Overcurrent Blanking Interval of 2 ms
GUID-20200807-CA0I-H1K1-BNHT-J6NWBKGLT3HK-low.gif
RILIM = 182 Ω
Figure 9-7 Output Hard Short-Circuit While ON
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RILIM = 182 Ω
Figure 9-9 Power-Up With Short-Circuit on Output
GUID-D12A52A4-D60D-48B5-BDB7-B1101D7F2B26-low.png
CLDSTRT = 0.1 μF
Figure 9-11 Successful Load Handshake (LDSTRT)
GUID-30A99F6C-63FA-4901-A1DA-ACF4301A76E2-low.png
COUT = 1.4 mFCdVdt = 10 nFRL(SU) = 10 Ω
Figure 9-4 Hot-Plug Start-Up With Load on Output - dVdt Limited
GUID-20200807-CA0I-8JMR-H3J9-8LJ5PG6ZGKZR-low.gif
RILIM = TBD Ω CITIMER = 4.7 nF CRETRY_DLY = 2.2 nF, CNRETRY = 2.2 nF
Figure 9-6 Circuit Breaker - Auto-Retry 4 Times With Retry Delay of 100 ms
GUID-20200807-CA0I-0WQV-SH6N-9XFXSQJRLKP7-low.gif
RILIM = 182 Ω
Figure 9-8 Output Hard Short-Circuit While ON (Zoomed In)
GUID-099FB065-FAF0-422F-AA78-2273808BF124-low.png
RILIM = 182 Ω
Figure 9-10 Power-Up With Short-Circuit on Output - Auto-Retry 4 Times With Retry Delay of 100 ms
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CLDSTRT = 0.1 μF
Figure 9-12 Unsuccessful Load Handshake (LDSTRT)