DC2642A-A: 5.5V @ 2.5 A, 2 Cell, SuperCap Backup Power Manager

Summary

DC2642A-A shows the LTC4041 supercapacitor backup power manager operating with a stack of two series supercapacitor. The board demonstrates the design of a 5V rail with a short-term power backup using 10F supercapacitors.

The input current limit, charge current limit, charge voltage, power fail threshold, and boost voltage are all configurable through changing resistor values on the board. Test points for all monitoring pins and LED indicators on status pins are also available to assist in the evaluation.

Specifications

Manufacturer Analog Devices Inc.
Category Power Management
Sub-Category Capacitor Chargers
Eval Board Part Number 505-DC2642A-A-ND
Eval Board Supplier Analog Devices Inc.
Eval Board Normally In Stock
Capacitor Type Super Capacitor
Function Backup Power Controller
Number of Capacitors 2
Voltage In 4.7 ~ 5.5 V
Voltage Out (Max) 5.5 V
Charge Current (Max) 2.5 A
Topology Buck-Boost
Features Adjustable Output Current
Adjustable Output Voltage
Automatic Cell Balancing
Backup Controller
Power Fail Indicator
Quiescent Current 800 µA
Component Count + Extras 38 + 40
Main I.C. Base Part LTC4041
Design Author Linear Technology
Date Created By Author 2018-01
Date Added To Library 2019-05

Eval Board

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Support Documents & Media

DC2642A - User Guide LTC4041 - Datasheet DC2642A-A - Design Files

Media

DC2642A-A - Schematic 1 DC2642A-A - Schematic 2 DC2642A - Set Up DC2642A-A - Charts