SLVSDG2G July   2016  – December  2019 TPS2660

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
    1.     Simplified Schematic
  3. 3 Description
    1.     Reverse Input Polarity Protection at –60-V Supply
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin 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 Undervoltage Lockout (UVLO)
      2. 9.3.2 Overvoltage Protection (OVP)
      3. 9.3.3 Reverse Input Supply Protection
      4. 9.3.4 Hot Plug-In and In-Rush Current Control
      5. 9.3.5 Overload and Short Circuit Protection
        1. 9.3.5.1 Overload Protection
          1. 9.3.5.1.1 Active Current Limiting
          2. 9.3.5.1.2 Electronic Circuit Breaker with Overload Timeout, MODE = OPEN
        2. 9.3.5.2 Short Circuit Protection
          1. 9.3.5.2.1 Start-Up With Short-Circuit On Output
        3. 9.3.5.3 FAULT Response
          1. 9.3.5.3.1 Look Ahead Overload Current Fault Indicator
        4. 9.3.5.4 Current Monitoring
        5. 9.3.5.5 IN, OUT, RTN, and GND Pins
        6. 9.3.5.6 Thermal Shutdown
        7. 9.3.5.7 Low Current Shutdown Control (SHDN)
    4. 9.4 Device Functional Modes
  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 Programming the Current-Limit Threshold—R(ILIM) Selection
        3. 10.2.2.3 Undervoltage Lockout and Overvoltage Set Point
        4. 10.2.2.4 Programming Current Monitoring Resistor—RIMON
        5. 10.2.2.5 Setting Output Voltage Ramp Time—(tdVdT)
          1. 10.2.2.5.1 Case 1: Start-Up Without Load—Only Output Capacitance C(OUT) Draws Current During Start-Up
          2. 10.2.2.5.2 Case 2: Start-Up With Load—Output Capacitance C(OUT) and Load Draws Current During Start-Up
          3. 10.2.2.5.3 Support Component Selections—RFLTb and C(IN)
      3. 10.2.3 Application Curves
    3. 10.3 System Examples
      1. 10.3.1 Acive ORing Operation
      2. 10.3.2 Field Supply Protection in PLC, DCS I/O Modules
      3. 10.3.3 Simple 24-V Power Supply Path Protection
    4. 10.4 Do's and Don'ts
  11. 11Power Supply Recommendations
    1. 11.1 Transient Protection
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Device Support
    2. 13.2 Documentation Support
      1. 13.2.1 Related Documentation
    3. 13.3 Receiving Notification of Documentation Updates
    4. 13.4 Community Resources
    5. 13.5 Trademarks
    6. 13.6 Electrostatic Discharge Caution
    7. 13.7 Glossary
  14. 14Mechanical, Packaging, and Orderable Information
  15. 14Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RHF|24
  • PWP|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9.1 Overview

The TPS2660x is a family of high voltage industrial eFuses with integrated back-to-back MOSFETs and enhanced built-in protection circuitry. It provides robust protection for all systems and applications powered from 4.2 V to 60 V. The device can withstand ±60 V positive and negative supply voltages without damage. For hot-pluggable boards, the device provides hot-swap power management with in-rush current control and programmable output voltage slew rate features. Load, source and device protections are provided with many programmable features including overcurrent, overvoltage, undervoltage. The precision overcurrent limit (±5% at 1 A) helps to minimize over design of the input power supply, while the fast response short circuit protection 250 ns (typical) immediately isolates the faulty load from the input supply when a short circuit is detected.

The internal robust protection control blocks of the TPS2660x along with its ±60 V rating helps to simplify the system designs for the surge compliance ensuring complete protection of the load and the device.

The device provides precise monitoring of voltage bus for brown-out and overvoltage conditions and asserts fault signal for the downstream system. The TPS2660x monitor functions threshold accuracy of ±3% ensures tight supervision of the supply bus, eliminating the need for a separate supply voltage supervisor chip.

The device monitors V(IN) and V(OUT) to provide true reverse current blocking when a reverse condition or input power failure condition is detected. The TPS2660x is also designed to control redundant power supply systems. A pair of TPS2660x devices can be configured for Active ORing between the main power supply and the auxiliary power supply, (see the System Examples section).

Additional features of the TPS2660x include:

  • Current monitor output for health monitoring of the system
  • Electronic circuit breaker operation with overload timeout using MODE pin
  • A choice of latch off or automatic restart mode response during current limit fault using MODE pin
  • Over temperature protection to safely shutdown in the event of an overcurrent event
  • De-glitched fault reporting for brown-out and overvoltage faults
  • Look ahead overload current fault indication (see the Look Ahead Overload Current Fault Indicator section)