SLVS798G January   2008  – June 2024 TPS2062A , TPS2066A

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 Recommended Operating Conditions
    3. 5.3 Thermal Information
    4. 5.4 Electrical Characteristics
    5. 5.5 Typical Characteristics
  7. 6 Parameter Measurement Information
    1.     13
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Overcurrent
      1. 7.3.1 Overcurrent Conditions (TPS2062ADRB, TPS2066ADRB, and TPS2066AD)
      2. 7.3.2 Overcurrent Conditions (TPS2062AD)
    4. 7.4 OCx Response
    5. 7.5 Undervoltage Lockout (UVLO)
    6. 7.6 Enable ( ENx or ENx)
    7. 7.7 Thermal Sense
  9. 8 Application Information
    1. 8.1 Power-Supply Considerations
    2. 8.2 Input and Output Capacitance
    3. 8.3 Power Dissipation and Junction Temperature
    4. 8.4 Universal Serial Bus (USB) Applications
    5. 8.5 Self-powered and Bus-Powered Hubs
    6. 8.6 Low-Power Bus-Powered And High-Power Bus-Powered Functions
    7. 8.7 USB Power-Distribution Requirements
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

8.7 USB Power-Distribution Requirements

USB can be implemented in several ways regardless of the type of USB device being developed. Several power-distribution features must be implemented.

  • SPHs must:
    • Current-limit downstream ports
    • Report overcurrent conditions
  • BPHs must:
    • Enable/disable power to downstream ports
    • Power up at <100 mA
    • Limit inrush current (<44 Ω and 10 μF)
  • Functions must:
    • Limit inrush currents
    • Power up at <100 mA

The feature set of the TPS2062A/66A meets each of these requirements. The integrated current-limiting and overcurrent reporting is required by self-powered hubs. The logic-level enable and controlled rise times meet the need of both input and output ports on bus-powered hubs and the input ports for bus-powered functions.