TIDA-01638

Seamless switchover for backup power reference design

TIDA-01638

Design files

Overview

The TIDA-01638 referencedesign showcases Power MUXing with redundant power. If one power source fails, the system needs to switchover to a backup power source and provide an uninterrupted source of power to downstream loads. Therefore, power redundancy ensures that if one power supply were to fail, the system can automatically switchover to the other power rail to prevent data loss.

Features
  • 5µs Transition time and external voltage reference provide seamless switchover
  • Priority source selection
  • Over-voltage protection and current limit
  • Hot-plug protection
  • Input settling, soft start control
  • Status output indication

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUE50.PDF (6535 K)

Reference design overview and verified performance test data

TIDRXG7.PDF (239 K)

Detailed schematic diagram for design layout and components

TIDRXH5.PDF (58 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRXG8.PDF (158 K)

Detailed overview of design layout for component placement

TIDRXH6.PDF (1212 K)

Files used for 3D models or 2D drawings of IC components

TIDCEZ1.ZIP (1635 K)

Design file that contains information on physical board layer of design PCB

TIDRXH1.PDF (867 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Power muxes

TPS21212.7-V to 22-V, 56-mΩ, 4.5-A, power mux with seamless switchover

Data sheet document-pdfAcrobat PDF
Buck converters (integrated switch)

TPS5642014.5 V to 17 V input, 4 A output, synchronous step-down converter in Eco-mode

Data sheet document-pdfAcrobat PDF open-in-new HTML
Series voltage references

REF33252.5-V, 30-ppm/°C drift, 3.9-µA, 3-pin SOT-23, 3-pin SC70, 8-pin UQFN voltage reference

Data sheet document-pdfAcrobat PDF open-in-new HTML
eFuses & hot swap controllers

TPS25952.7-V to 18-V, 34mΩ, 0.5-4A eFuse with over voltage protection in small WSON package

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Design guide Seamless Switchover for Backup Power Reference Design Jan. 31, 2018

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