SLVSCQ3B August   2015  – June 2016

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 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 GND
      2. 8.3.2 VIN
      3. 8.3.3 dV/dT
      4. 8.3.4 EN/UVLO
      5. 8.3.5 ILIM
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Programming the Current-Limit Threshold: RILIM Selection
        2. 9.2.2.2 Undervoltage Lockout Set Point
        3. 9.2.2.3 Setting Output Voltage Ramp Time (TdVdT)
          1. 9.2.2.3.1 Case 1: Start-Up without Load: Only Output Capacitance COUT Draws Current During Start-Up
          2. 9.2.2.3.2 Case 2: Start-Up with Load: Output Capacitance COUT and Load Draws Current During Start-Up
        4. 9.2.2.4 Support Component Selection—CVIN
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Transient Protection
    2. 10.2 Output Short-Circuit Measurements
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Related Links
    4. 12.4 Receiving Notification of Documentation Updates
    5. 12.5 Community Resources
    6. 12.6 Trademarks
    7. 12.7 Electrostatic Discharge Caution
    8. 12.8 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • 12-V eFuse – TPS25926x
  • 5-V eFuse – TPS25925x
  • Integrated 30-mΩ Pass MOSFET
  • Fixed Over-Voltage Clamp:
    • 6.1-V Clamp - TPS25925x
    • 15-V Clamp - TPS25926x
  • 2-A to 5-A Adjustable ILIMIT (±15% Accuracy)
  • Programmable VOUT Slew Rate, UVLO
  • Built-in Thermal Shutdown
  • UL 2367 Recognized – File No. E339631*
    • *RILIM ≤ 130 kΩ (5 A maximum)
  • Safe During Single Point Failure Test (UL60950)
  • Small Foot Print – 10L (3 mm x 3 mm) VSON

2 Applications

  • HDD and SSD Drives
  • Set Top Boxes
  • Servers and AUX Supplies
  • PCI and PCIe Cards
  • Adapter Powered Devices

3 Description

The TPS25925x/6x family of eFuses is a highly integrated circuit protection and power management solution in a tiny package. The devices use few external components and provide multiple protection modes. They are a robust defense against overloads, shorts circuits, voltage surges, excessive inrush current. Current limit level can be set with a single external resistor and current limit set has a typical accuracy of ±15%. Over voltage events are limited by internal clamping circuits to a safe fixed maximum, with no external components required. TPS25926x devices provide over voltage protection (OVP) for 12-V systems and TPS25925x devices for 5-V systems. In cases with particular voltage ramp requirements, a dV/dT pin is provided that can be programmed with a single capacitor to ensure proper output ramp rates.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS259250, TPS259251 VSON (10) 3.00 mm × 3.00 mm
TPS259260, TPS259261
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Application Schematic

TPS259250 TPS259251 TPS259260 TPS259261 typ_app_1_SLVSCQ3.gif

Transient: Output Short Circuit

TPS259250 TPS259251 TPS259260 TPS259261 FP_Fig_21_29_slvscq3.png