SLVS714B February   2007  – June 2024 TPS2062-1 , TPS2065-1 , TPS2066-1

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  Functional Block Diagram
    2. 7.2  Power Switch
    3. 7.3  Charge Pump
    4. 7.4  Driver
    5. 7.5  Enable ( ENx or ENx)
    6. 7.6  Current Sense
    7. 7.7  Overcurrent
      1. 7.7.1 Overcurrent Conditions (TPS2062-1 and TPS2065-1)
      2. 7.7.2 Overcurrent Conditions (TPS2066-1)
    8. 7.8  Overcurrent ( OCx)
    9. 7.9  Thermal Sense
    10. 7.10 Undervoltage Lockout
    11. 7.11 Discharge Function
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1  Power-Supply Considerations
      2. 8.1.2  OC Response
      3. 8.1.3  Power Dissipation and Junction Temperature
      4. 8.1.4  Thermal Protection
      5. 8.1.5  Undervoltage Lockout (UVLO)
      6. 8.1.6  Universal Serial Bus (USB) Applications
      7. 8.1.7  Host/Self-Powered and Bus-Powered Hubs
      8. 8.1.8  Low-Power Bus-Powered and High-Power Bus-Powered Functions
      9. 8.1.9  USB Power-Distribution Requirements
      10. 8.1.10 Generic Hot-Plug Applications
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
    2. 9.2 Documentation Support
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

3 Description

The TPS206x-1 power-distribution switches are intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. This device incorporates 70mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7V.

These switches provide a discharge function that provides a controlled discharge of the output voltage stored on the output capacitor.

When the output load exceeds the current-limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent ( OCx) logic output low. When continuous heavy overloads and short-circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1.5A typically.

TPS2062-1 TPS2065-1 TPS2066-1