SLVAG21
April 2026
TPS61381-Q1
1
Abstract
Trademarks
1
Introduction
2
System Overview
6
2.1
Design Considerations
2.2
System Design Theory
2.2.1
Supercapacitor Charging Operation
2.2.1.1
Calculation for Backup Supercapacitor Selection
2.2.1.1.1
Design Calculations
3
Test Results
3.1
Standby Operation
3.2
Charging Operation
3.3
Boost Operation
4
Summary
5
References
Application Note
Supercap Backup Power for Dying Gasp Application