DC1937B: 10V @ 5.33A, 12V in, Solar Supercapacitor Charger

Summary

Demonstration circuit 1937B is a supercapacitor charger and backup controller with supercapacitor health and system monitoring; featuring the LTC®3350. The LTC3350 has a buck supercapacitor charger, backup boost controller and an input ideal diode to disconnect the input supply in backup mode. An output ideal diode allows the supercapacitors to supply the output when VCAP is above the set backup voltage. As the capacitor stack voltage drops down to the set output voltage, the LTC3350 will operate as a boost regulator to supply the output until the energy in the supercapacitors are depleted.

Specifications

Manufacturer Analog Devices Inc.
Category Power Management
Sub-Category Battery Chargers
Eval Board Part Number 505-DC1937B-ND
Eval Board Supplier Analog Devices Inc.
Eval Board Normally In Stock
Cell Type Super-Capacitor
Configuration 4 Supercapacitors
Voltage In 12 V
Voltage Out 10 V
Current Out 5.33 A
Features Current Limit (Adj. or Fixed)
I²C Interface
Over Voltage Protection
SMBus Interface
Quiescent Current [Typical] 4 mA
Sleep Mode Current [Typical] - Not Given
Component Count + Extras 51 + 35
Application / Target Market Memory Back-up
Power: Auxiliary Power Supply
Servers
Design Author Linear Technology
Main I.C. Base Part LTC3350
Quiescent Current [Maximum] - Not Given
Sleep Mode Current [Maximum] - Not Given
Date Created By Author 2015-05
Date Added To Library 2016-09

Eval Board

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Support Documents & Media

DC1937B - User Guide LTC3350 - Datasheet

Media

DC1937B - Schematic - Full DC1937B - Board 1 - Full DC1937B - Board 2 - Full DC1937B - Chart 1 - Full DC1937B - Chart 2 - Full DC1937B - Chart 3 - Full