SLVS931B November   2009  – December 2016 TPS2556 , TPS2557

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
  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 Switching Characteristics
    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 Overcurrent Conditions
      2. 9.3.2 FAULT Response
      3. 9.3.3 Undervoltage Lockout (UVLO)
      4. 9.3.4 Enable (EN OR EN)
      5. 9.3.5 Thermal Sense
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 Current-Limiting Power-Distribution Switch
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
          1. 10.2.1.2.1 Input and Output Capacitance
          2. 10.2.1.2.2 Programming the Current-Limit Threshold
            1. 10.2.1.2.2.1 Designing Above a Minimum Current Limit
            2. 10.2.1.2.2.2 Designing Below a Maximum Current Limit
            3. 10.2.1.2.2.3 Accounting for Resistor Tolerance
          3. 10.2.1.2.3 Auto-Retry Functionality
          4. 10.2.1.2.4 Two-Level Current-Limit Circuit
        3. 10.2.1.3 Application Curve
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
    3. 12.3 Thermal Considerations
  13. 13Device and Documentation Support
    1. 13.1 Related Links
    2. 13.2 Receiving Notification of Documentation Updates
    3. 13.3 Community Resources
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

4 Revision History

Changes from A Revision (Feburary 2012) to B Revision

  • Added Device Information table, Device Comparison Table, Pin Configuration and Functions section, Specifications section, ESD Ratings table, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information sectionGo
  • Deleted Ordering Information table; see Package Option Addendum at the end of the data sheetGo
  • Added Thermal Information tableGo
  • Changed RθJC(top) value in Thermal Information table From: 10.7°C/W To: 54.5°C/WGo
  • Changed Figure 11 title From: Current Limit Threshold Vs RILM To: Switch Current vs Drain-Source Voltage Across SwitchGo
  • Changed Figure 12 title From: Current Limit Threshold Vs RILM To: Switch Current vs Drain-Source Voltage Across SwitchGo

Changes from * Revision (November 2009) to A Revision

  • Changed VEN to VEN in Recommended Operating Conditions tableGo
  • Changed VEN to VEN in Recommended Operating Conditions tableGo