DC1568A(#1): 2 Cell, 8.2V, 2A Max, Solar

Summary

Demonstration Circuit 1568A is a 2A Monolithic Multi-Chemistry battery charger (Li-Ion/Polymer, LiFePO4, SLA, NiMH/NiCd) for solar power applications featuring the LT3652EDD.

The LT3652 is a complete mid-power Li-Ion battery charger that can operate over a wide input voltage range. The charger employs a 3.3V float voltage feedback reference that allows the battery float voltage to be adjusted up to 14.4V.

The LT3652 has an input voltage regulation loop which reduces charge current if the input falls below a programmed level, set with a resistor divider. The charger is a CC/CV charger with a maximum charge current of 2A. A precondition feature trickle charges a low-voltage battery, and bad battery detection provides a signal if the battery doesn’t respond to preconditioning.

Specifications

Manufacturer	Analog Devices Inc.
Category	Power Management
Sub-Category	Battery Chargers
Eval Board Part Number	505-DC1568A-ND
Eval Board Supplier	Analog Devices Inc.
Eval Board	Normally In Stock
Cell Type	Lithium Ion, Li-Ion Lithium Polymer, Li-Pol
Configuration	2 in Series
Voltage In	11.5 ~ 32 V
Voltage Out	8.2 V
Current Out	2 A
Features	Bad Battery Detection Cell Preconditioning Cell Temperature Monitoring Fault Indication Shutdown, Enable, Standby Under Voltage Protection, Brown-Out
Quiescent Current [Typical]	2.5 mA
Sleep Mode Current [Typical]	15 µA
Component Count + Extras	19 + 25
Application / Target Market	Portable Devices Solar Powered Back-up
Design Author	Linear Technology
Main I.C. Base Part	LT3652EDD
Quiescent Current [Maximum]	3.5 mA
Sleep Mode Current [Maximum]
Date Created By Author
Date Added To Library	2011-11