DC1621A: 2 Cell, 7.2V, 2A Max, LiFePO4

Summary

Demonstration circuit 1621A features the LTM®8062, a 32V, 2A μModule® power tracking battery charger. The demonstration circuit is designed to operate from a 9.75V to 32V input source, and to charge a 2-cell battery pack to a float voltage of 7.2V.

The float voltage can easily be changed to a higher or lower voltage by adjusting the values of R2 and R3. R7 and R9 keep the converter off until the input has reached 8.5V, typically. JP2 allows for easy selection of C/10 or timer charge termination. The LTM8062 data sheet must be read in conjunction with this quick start guide for working on or modifying the demo circuit 1621A.

Specifications

Manufacturer Analog Devices Inc.
Category Power Management
Sub-Category Battery Chargers
Eval Board Part Number DC1621A-ND
Eval Board Supplier Analog Devices Inc.
Eval Board Normally In Stock
Cell Type Lithium Iron Phosphate, LiFePO4
Configuration 2 in Series
Voltage In 9.75 ~ 32 V
Voltage Out 7.2 V
Current Out 2 A
Features Auto Off
Auto Re-Charge
Bad Battery Detection
Cell Preconditioning
Cell Temperature Monitoring
Fault Indication
Reverse Polarity Protection
Shutdown, Enable, Standby
Quiescent Current [Typical]
Sleep Mode Current [Typical] 85 µA
Component Count + Extras 6 + 30
Application / Target Market Automotive
Solar Powered Back-up
Design Author Linear Technology
Main I.C. Base Part LTM8062
Quiescent Current [Maximum]
Sleep Mode Current [Maximum]
Date Created By Author
Date Added To Library 2011-06

Eval Board

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Support Documents & Media

DC1621A - User Guide LTM8062 - Datasheet

Media

DC1621A_Schematic_Full.PNG DC1621A_Board_Full.JPG DC1621A_Chart_1_Full.PNG DC1621A_Chart_2_Full.PNG
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