SLVSDT4F October   2017  – December 2021 TPS2662

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 Undervoltage Lockout (UVLO)
      2. 9.3.2 Overvoltage Protection (OVP)
      3. 9.3.3 Hot Plug-In and Inrush Current Control
      4. 9.3.4 Reverse Polarity Protection
        1. 9.3.4.1 Input Side Reverse Polarity Protection
        2. 9.3.4.2 Output Side Reverse Polarity Protection
      5. 9.3.5 Overload and Short-Circuit Protection
        1. 9.3.5.1 Overload Protection
        2.       28
        3. 9.3.5.2 Short-Circuit Protection
          1. 9.3.5.2.1 Start-Up With Short-Circuit On Output
      6. 9.3.6 Reverse Current Protection
      7. 9.3.7 FAULT Response
      8. 9.3.8 IN, OUT, RTN, and GND Pins
      9. 9.3.9 Thermal Shutdown
    4. 9.4 Device Functional Modes
      1. 9.4.1 Low Current Shutdown Control (SHDN)
  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 Setting Output Voltage Ramp Time—(tdVdT)
          1. 10.2.2.4.1 Case 1: Start-Up Without Load—Only Output Capacitance C(OUT) Draws Current During Start-Up
          2. 10.2.2.4.2 Case 2: Start-Up With Load —Output Capacitance C(OUT) and Load Draws Current During Start-Up
          3. 10.2.2.4.3 Support Component Selections – R FLT and C(IN)
      3. 10.2.3 Application Curves
    3. 10.3 System Examples
      1. 10.3.1 Field Supply Protection in PLC, DCS I/O Modules
      2. 10.3.2 Simple 24-V Power Supply Path Protection
      3. 10.3.3 Power Stealing in Smart Thermostat
    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 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Receiving Notification of Documentation Updates
    3. 13.3 Support Resources
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

6 Pin Configuration and Functions

GUID-D5B6039E-79D2-4964-8F14-7434794EFA71-low.gifFigure 6-1 DRC Package10-Pin VSONTop View
Table 6-1 Pin Functions
PIN TYPE DESCRIPTION
NO. NAME
1 IN Power Input supply voltage
2 UVLO I Resistor programmable undervoltage lockout threshold setting input. An undervoltage event opens the internal FET. If the Undervoltage Lock Out function is not needed, the UVLO terminal must be connected to the IN terminal with at least a 1-MΩ resistor. UVLO pin is 5-V rated and this resistor limits the UVLO pin current to < 60 µA.
3 OVP I Resistor programmable overvoltage protection threshold. An overvoltage event opens internal FET. In TPS26620, TPS26621, TPS26624, TPS26625 devices, if overvoltage protection feature is not to be used then connect OVP terminal to RTN. For overvoltage clamp response (TPS26622 and TPS26623 only) connect OVP to RTN externally.
4 SHDN I Shutdown pin. Pulling the pin low makes the device to enter into low power shutdown mode. Cycling SHDN low and then back high resets the device that has latched off (TPS26620, TPS26622, TPS26624 only) due to a fault condition.
5 RTN – Reference ground for all internal voltages
6 GND – System ground
7 ILIM I/O A resistor from this pin to RTN sets the overload and short-circuit current limit. See the Overload and Short Circuit Protection section.
8 dVdT I/O A capacitor from this pin to RTN sets output voltage slew rate. See the Hot Plug-In and In-Rush Current Control section.
9 FLT O Fault event indicator. This pin is an open drain output. If unused, leave floating.
10 OUT Power Output voltage
– PowerPAD™ – Connect PowerPAD to RTN plane for heat sinking. Do not use PowerPAD as the only electrical connection to RTN.