SLVSCP4B October   2014  – August 2015 TPD3S014 , TPD3S044

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: TJ = TA = 25°C
    6. 7.6 Electrical Characteristics: -40°C ≤ TJ ≤ 125°C
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Undervoltage Lockout (UVLO)
      2. 8.3.2 Enable
      3. 8.3.3 Internal Charge Pump
      4. 8.3.4 Current Limit
      5. 8.3.5 Output Discharge
      6. 8.3.6 Input and Output Capacitance
    4. 8.4 Device Functional Modes
      1. 8.4.1 Operation With VIN < 4 V (Minimum VIN)
      2. 8.4.2 Operation With EN Control
      3. 8.4.3 Operation of Level 4 IEC61000-4-2 ESD Protection
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 USB2.0 Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Implementing Active Low Logic
        4. 9.2.1.4 Application Curves
      2. 9.2.2 USB3.0 Application
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Examples
    3. 11.3 Power Dissipation and Junction Temperature
  12. 12Device and Documentation Support
    1. 12.1 Related Links
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

1 Features

  • Continuous Current Ratings of 0.5 A and 1.5 A
  • Fixed, Constant Current Limits of 0.85 A and
    2.15 A (Typ)
  • Fast Overcurrent Response – 2 μs
  • Integrated Output Discharge
  • Reverse Current Blocking
  • Short-Circuit Protection
  • Over Temperature Protection With Auto-Restart
  • Built-In Soft Start
  • Ambient Temperature Range: –40°C to 85°C
  • Product Regulatory Compliance
    • UL Recognized Component (UL 2367, Standard for Solid State Overcurrent Protectors)
    • CB File No. E169910 to IEC 60950-1, Information Technology Equipment
  • IEC 61000-4-2 Level 4 ESD Protection (External Pins)
    • ±12-kV Contact Discharge (IEC 61000-4-2)
    • ±15-kV Air Gap Discharge (IEC 61000-4-2)

2 Applications

  • End Equipment:
    • Electronic Point of Sale (ESOP)
    • USB Hubs
    • Laptops, Desktops
    • High-Definition Digital TVs
    • Set-Top Boxes
  • Interfaces:
    • USB Ports
    • 5-V Power Rails

3 Description

The TPD3S0x4s are integrated devices that feature a current-limited load switch and a two-channel transient voltage suppressor (TVS) based electrostatic discharge (ESD) protection diode array for USB interfaces.

The TPD3S0x4 devices are intended for applications such as USB where heavy capacitive loads and short-circuits are likely to be encountered; TPD3S0x4s provide short-circuit protection and overcurrent protection. The TPD3S0x4s limit the output current to a safe level by operating in constant current mode when the output load exceeds the current limit threshold. The fast overload response eases the burden on the main 5-V power supply by quickly regulating the power when the output is shorted. The rise and fall times for the current limit switch are controlled to minimize current surges when turning the device on and off.

The TPD3S014 and TPD3S044 will allow 0.5 A and 1.5 A of continuous current, respectively. The TVS diode array is rated to dissipate ESD strikes above the maximum level specified in the IEC 61000-4-2 international standard.

The high level of integration, combined with its easy-to-route DBV package, allows this device to provide great circuit protection for USB interfaces in applications like laptops, high-definition digital TVs, set-top boxes, and electronic point of sale equipment.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPD3S0x4 DBV (6) 2.90 mm × 2.80 mm × 1.45 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

TPD3S014 TPD3S044 typ_app_slvscp4.gif