SLVS850A June   2008  – September 2023 TPS2551-Q1

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Revision History
  6. Pin Configurations and Functions
  7. 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 Typical Characteristics
  8. Parameter Measurement Information
  9. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Overcurrent
      2. 8.3.2 Reverse-Voltage Protection
      3. 8.3.3 FAULT Response
      4. 8.3.4 Undervoltage Lockout (UVLO)
      5. 8.3.5 Enable (EN)
      6. 8.3.6 Thermal Sense
      7. 8.3.7 Device Functional Modes
    4. 8.4 Programming
      1. 8.4.1 Programming the Current-Limit Threshold
  10. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Two-Level Current-Limit Circuit
      2. 9.2.2 Design Requirements
      3. 9.2.3 Detail Design Procedure
        1. 9.2.3.1 Designing Above a Minimum Current Limit
        2. 9.2.3.2 Designing Below a Maximum Current Limit
        3. 9.2.3.3 Input and Output Capacitance
      4. 9.2.4 Auto-Retry Functionality
      5. 9.2.5 Latch-Off Functionality
      6. 9.2.6 Typical Application as USB Power Switch
        1. 9.2.6.1 Design Requirements
          1. 9.2.6.1.1 USB Power-Distribution Requirements
        2. 9.2.6.2 Detail Design Procedure
          1. 9.2.6.2.1 Universal Serial Bus (USB) Power-Distribution Requirements
    3. 9.3 Power Supply Recommendations
      1. 9.3.1 Self-Powered and Bus-Powered Hubs
      2. 9.3.2 Low-Power Bus-Powered and High-Power Bus-Powered Functions
      3. 9.3.3 Power Dissipation and Junction Temperature
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Receiving Notification of Documentation Updates
    2. 10.2 Support Resources
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

Typical Characteristics

GUID-0526F674-1154-427B-824F-D7A25EE8E2EA-low.gifFigure 6-1 Turnon Delay and Rise Time
GUID-3E4394C8-7C65-46C8-9960-FF78E59D56AD-low.gifFigure 6-3 Device Enabled into Short-Circuit
GUID-C5778B80-09F0-4508-A73F-B65F98883150-low.gifFigure 6-5 Short-Circuit to Full-Load Recovery Response
GUID-4D330CAB-8D89-4650-B9EF-790CB541136B-low.gifFigure 6-7 Short-Circuit to No-Load Recovery Response
GUID-30D48267-67F0-4424-B667-98868145FE7C-low.gifFigure 6-9 1Ω to No Load Transient Response
GUID-C01E74AE-C7BD-4877-A62C-ECAEEF29C4F0-low.gifFigure 6-11 Reverse-Voltage Protection Recovery
GUID-EB141BF0-84DF-411D-B579-AB6635860642-low.gifFigure 6-13 IIN – Supply Current, Output Disabled – μA
GUID-BFD1D079-C129-47D1-BD5C-A37F8CF594BC-low.gifFigure 6-15 Current Limit Response – μs
GUID-667FAF85-9C49-47CC-B9A4-2F1A839312C8-low.gifFigure 6-2 Turnoff Delay and Fall Time
GUID-50362DE2-7084-4C68-BB50-C3F722D517D6-low.gifFigure 6-4 Full-Load to Short-Circuit Transient Response
GUID-FE5C97BA-F711-4699-8D0B-64BC305D0FEB-low.gifFigure 6-6 No-Load to Short-Circuit Transient Response
GUID-57E762DA-6C07-4D43-AD49-BD8B23EE2B88-low.gifFigure 6-8 No Load to 1Ω Transient Response
GUID-949C7F09-E49F-43E9-81C4-A91B1F45A91D-low.gifFigure 6-10 Reverse-Voltage Protection Response
GUID-3DDF42CC-7AE8-448E-9640-60E1681FCA30-low.gifFigure 6-12 UVLO – Undervoltage Lockout – V
GUID-C26843CD-935C-48A6-AC9B-7999B8E65BDD-low.gifFigure 6-14 IIN – Supply Current, Output Enabled – μA
GUID-A4E33DDB-68F0-4124-B2D8-F1EFB549FC5D-low.gifFigure 6-16 MOSFET rDS(on) Vs. Junction Temperature