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