SLVS514M June   2010  – June 2016 TPS2041B , TPS2042B , TPS2043B , TPS2044B , TPS2051B , TPS2052B , TPS2053B , TPS2054B

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. General Switch Catalog
  6. Pin Configuration and Functions
  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 Dissipation Ratings
    7. 7.7 Typical Characteristics
  8. Parameter Measurement Information
  9. Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagrams
    3. 9.3 Feature Description
      1. 9.3.1 Power Switch
      2. 9.3.2 Charge Pump
      3. 9.3.3 Driver
      4. 9.3.4 Enable (ENx)
      5. 9.3.5 Enable (ENx)
      6. 9.3.6 Overcurrent (OCx)
      7. 9.3.7 Current Sense
      8. 9.3.8 Thermal Sense
      9. 9.3.9 Undervoltage Lockout
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Universal Serial Bus (USB) Applications
    2. 10.2 Typical Application
      1. 10.2.1 Typical Application (TPS2042B)
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
          1. 10.2.1.2.1 Power-Supply Considerations
          2. 10.2.1.2.2 Overcurrent
          3. 10.2.1.2.3 OC Response
        3. 10.2.1.3 Application Curves
      2. 10.2.2 Host and Self-Powered and Bus-Powered Hubs
        1. 10.2.2.1 Design Requirements
          1. 10.2.2.1.1 USB Power-Distribution Requirements
        2. 10.2.2.2 Detailed Design Procedure
          1. 10.2.2.2.1 Low-Power Bus-Powered and High-Power Bus-Powered Functions
        3. 10.2.2.3 Application Curves
      3. 10.2.3 Generic Hot-Plug Applications
        1. 10.2.3.1 Design Requirements
        2. 10.2.3.2 Detailed Design Procedure
        3. 10.2.3.3 Application Curves
  11. 11Power Supply Recommendations
    1. 11.1 Undervoltage Lockout (UVLO)
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
    3. 12.3 Power Dissipation
    4. 12.4 Thermal Protection
  13. 13Device and Documentation Support
    1. 13.1 Receiving Notification of Documentation Updates
    2. 13.2 Related Links
    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

Power Supply Recommendations

Undervoltage Lockout (UVLO)

An undervoltage lockout ensures that the power switch is in the off state at power up. Whenever the input voltage falls below approximately 2 V, the power switch is quickly turned off. This facilitates the design of hot-insertion systems where it is not possible to turn off the power switch before input power is removed. The UVLO also keeps the switch from being turned on until the power supply has reached at least 2 V, even if the switch is enabled. On reinsertion, the power switch is turned on, with a controlled rise time to reduce EMI and voltage overshoots.