DC1583A-B: 1A, 2-Cell, 4.5V Max, Supercapacitor Charger

Summary

DC1583A-B is a 1A high efficiency 2-Cell supercapacitor charger with automatic cell balancing featuring the LTC3625-1. The LTC3625-1 are programmable supercapacitor chargers designed to charge two supercapacitors in series to a fixed voltage of 4.5V or 4.0V from a 2.7V to 5.5V input supply. Automatic cell balancing is achieved during the charging phase, preventing overvoltage damage to either supercapacitor while maximizing charge rate.

High efficiency, high charging current, low quiescent current and low minimum external parts count make the LTC3625-1 ideally suited for small form factor backup or high peak power systems.

Charging current/maximum input current level is programmed with an external resistor. When the input supply is removed and/or the EN pin is low, the LTC3625-1 automatically enters a low current state, drawing less than 1μA from the supercapacitors.

Specifications

Manufacturer Analog Devices Inc.
Category Power Management
Sub-Category Capacitor Chargers
Eval Board Part Number DC1583A-B-ND
Eval Board Supplier Analog Devices Inc.
Eval Board Normally In Stock
Capacitor Type Super Capacitor
Function Charger Controller
Number of Capacitors 2
Voltage In 2.7 ~ 5.5 V
Voltage Out (Max) 4.5 V
Charge Current (Max) 1 A
Topology Buck-Boost
Features Adjustable Output Current
Adjustable Output Voltage
Automatic Cell Balancing
Power Fail Indicator
Power Good Indicator
Shutdown, Enable, Standby
Undervoltage Protection
Quiescent Current 365 µA
Component Count + Extras 15 + 22
Main I.C. Base Part LTC3625-1
Design Author Linear Technology
Date Created By Author 2010-08
Date Added To Library 2019-05

Eval Board

Order a fully assembled board:

Quantity Available: 0

Quantity:

Support Documents & Media

DC1583A-(A,B) - User Guide LTC3625,-1 - Datasheet DC1583A-(A,B) - Design Files

Media

DC1583A-B - Schematic DC1583A-B - Board DC1583A - Chart