SLVSD03 December   2015 TPS2559-Q1

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 Timing Requirements
    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 Thermal Sense
      2. 9.3.2 Overcurrent Protection
      3. 9.3.3 FAULT Response
    4. 9.4 Device Functional Modes
      1. 9.4.1 Operation with VIN Undervoltage Lockout (UVLO) Control
      2. 9.4.2 Operation with EN Control
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Step by Step Design Procedure
        2. 10.2.2.2 Input and Output Capacitance
        3. 10.2.2.3 Programming the Current-Limit Threshold
        4. 10.2.2.4 Design Above a Minimum Current Limit
        5. 10.2.2.5 Design Below a Maximum Current Limit
        6. 10.2.2.6 Accounting for Resistor Tolerance
        7. 10.2.2.7 Power Dissipation and Junction Temperature
        8. 10.2.2.8 Auto-Retry
        9. 10.2.2.9 Two-level Current-limit
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Community Resources
    2. 13.2 Trademarks
    3. 13.3 Electrostatic Discharge Caution
    4. 13.4 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DRC|10
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Qualified for Automotive Applications AEC-Q100 Qualified With the Following Results:
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C5
  • 2.5 to 6.5 V Operating Range
  • Adjustable 1.2 to 4.7 A I(LIMIT) (±4.7% at 4.7 A)
  • 3.5 µs Short Circuit Shutoff (Typical)
  • 13-mΩ High-Side MOSFET
  • 2-µA Maximum Standby Supply Current
  • Built-in Soft-Start
  • Reverse Current Blocking when Disabled
  • 8 kV / 15 kV System-Level ESD Capable
  • 10-Pin SON (3-mm × 3-mm) Package with Wettable Flanks

2 Applications

  • Automotive USB Ports/Hubs
  • Automotive Internal Load Switch

3 Description

The TPS2559-Q1 power-distribution switch is intended for applications where a low resistance, precision current limit switch is required or heavy capacitive loads are encountered. The TPS2559-Q1 provides up to 5.5 A of continuous load current with a precise current limit set by a single resistor to ground. Output current is maintained at a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. During overload events the output current is limited to the level set by R(ILIM). If a persistent overload occurs, the device goes into thermal shutoff to prevent damage to the TPS2559-Q1.

The power-switch rise and fall times are controlled to minimize current surges during turn on or off. The FAULT logic output asserts low during overcurrent or overtemperature conditions.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS2559-Q1 VSON (10) 3.00mm x 3.00mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Simplified Schematic

TPS2559-Q1 simple_schematic_slvsd03.gif