SLVSFQ6A
November 2020 – June 2021
TPS2640
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements
7.7
Typical Characteristics
8
Parameter Measurement Information
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Undervoltage Lockout (UVLO)
9.3.2
Overvoltage Protection (OVP)
9.3.3
Reverse Input Supply Protection
9.3.4
Hot Plug-In and In-Rush Current Control
9.3.5
Overload and Short Circuit Protection
9.3.5.1
Overload Protection
9.3.5.1.1
Active Current Limiting
9.3.5.1.2
Electronic Circuit Breaker with Overload Timeout, MODE = OPEN
9.3.5.2
Short Circuit Protection
9.3.5.2.1
Start-Up With Short-Circuit On Output
9.3.5.3
FAULT Response
9.3.5.3.1
Look Ahead Overload Current Fault Indicator
9.3.5.4
Current Monitoring
9.3.5.5
IN, OUT, RTN, and GND Pins
9.3.5.6
Thermal Shutdown
9.3.5.7
Low Current Shutdown Control (SHDN)
9.4
Device Functional Modes
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.2.1
Step by Step Design Procedure
10.2.2.2
Undervoltage Lockout and Overvoltage Set Point
10.2.2.3
Programming Current Monitoring Resistor—RIMON
10.2.2.4
Setting Output Voltage Ramp Time—(tdVdT)
10.2.2.4.1
Case 1: Start-Up Without Load—Only Output Capacitance C(OUT) Draws Current During Start-Up
10.2.2.4.2
Case 2: Start-Up With Load—Output Capacitance C(OUT) and Load Draws Current During Start-Up
10.2.2.4.3
Support Component Selections—RFLTb and C(IN)
10.2.3
Application Curves
10.3
System Examples
10.3.1
Acive ORing Operation
10.3.2
Field Supply Protection in PLC, DCS I/O Modules
10.3.3
Simple 24-V Power Supply Path Protection
10.4
Do's and Dont's
11
Power Supply Recommendations
11.1
Transient Protection
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
Device and Documentation Support
13.1
Device Support
13.2
Documentation Support
13.2.1
Related Documentation
13.3
Receiving Notification of Documentation Updates
13.4
Support Resources
13.5
Trademarks
13.6
Electrostatic Discharge Caution
13.7
Glossary
14
Mechanical, Packaging, and Orderable Information
10.2.2
Detailed Design Procedure