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

封装选项

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

11 Power Supply Recommendations

The TPS255x operates from 2.5 V to 6.5 V. TI recommends operating from either a 3.3-V ± 10% or 5-V ± 10% power supply. The load capacity of the power supply must be greater than the maximum current limit (IOS) setting of the TPS255x.
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