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

6 Pin Configuration and Functions

PWP Package
16-Pin HTSSOP
Top View
TPS2660 Pinout_01_TPS26600_SLVSDG2.gif
RHF Package
24-Pin VQFN
Top View
TPS2660 Pinout_05_TPS26600_SLVSDG2.gif

Pin Functions

PIN TYPE DESCRIPTION
NAME TPS26600/1/2
HTSSOP VQFN
dVdT 12 20 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
FLT 14 22 O Fault event indicator. It is an open drain output. If unused, leave floating
GND 9 17 — Connect GND to system ground
ILIM 11 19 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
IMON 10 18 O Analog current monitor output. This pin sources a scaled down ratio of current through the internal FET. A resistor from this pin to RTN converts current to proportional voltage. If unused, leave it floating
IN 1 8 Power Power input and supply voltage of the device
2 9
MODE 6 13 I Mode selection pin for over load fault response. See the Device Functional Modes section
N.C 4 1-7 — No connect
13 11
16
21
OUT 15 23 Power Power output of the device
16 24
OVP 5 12 I Input for setting the programmable overvoltage protection threshold (For TPS26600/1 only). An overvoltage event turns off the internal FET and asserts FLT to indicate the overvoltage fault. Connect OVP pin to RTN pin externally to select the internal default threshold. For overvoltage clamp response (TPS26602 Only) connect OVP to RTN externally
PowerPadTM — — — PowerPad must be connected to RTN plane on PCB using multiple vias for enhanced thermal performance. Do not use PowerPad as the only electrical connection to RTN
RTN 8 15 — Reference for device internal control circuits
SHDN 7 14 I Shutdown pin. Pulling SHDN low makes the device to enter into low power shutdown mode. Cycling SHDN pin voltage resets the device that has latched off due to a fault condition
UVLO 3 10 I Input for setting the programmable undervoltage lockout threshold. An undervoltage event turns off the internal FET and asserts FLT to indicate the power-failure. Connect UVLO pin to RTN pin to select the internal default threshold