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DC1645A-C: 2 Cell, 8.2V, 2A Max, Li-Ion/LiPo

Summary

Demonstration circuits 1645A-A, 1645A-B, 1645A-C and 1645A-D feature the LTM8061, a 32V, 2A μModule® Li-Ion battery charger. Operating from a 6.5V to 32V input source, the 1645A-A and 1645A-B demo circuits charge single cell Li-Ion batteries to float voltages of 4.1V or 4.2V respectively.

The 1645A-C and 1645A-D demo circuits operate from a 12V to 32V input source, and charge dual cell Li-Ion battery packs to float voltages of 8.2V or 8.4V. JP1 turns the converter on or off. JP2 allows for easy selection of C/10 or timer charge termination. The LTM8061 datasheet must be read in conjunction with this demo manual for working on or modifying the demo circuit 1645A.

Specifications

Manufacturer Linear Technology/Analog Devices
Category Power Management
Sub-Category Battery Chargers
Eval Board Part Number DC1645A-C-ND
Eval Board Supplier Linear Technology/Analog Devices
Eval Board Normally In Stock
Cell Type Lithium Ion, Li-Ion
Lithium Polymer, Li-Pol
Configuration 2 in Series
Voltage In 12 ~ 32 V
Voltage Out 8.2 V
Current Out 2 A
Features Auto Re-Charge
Bad Battery Detection
Cell Preconditioning
Cell Temperature Monitoring
Current Limit (Adj. or Fixed)
Shutdown, Enable, Standby
Soft Start
Thermal Protection
Under Voltage Protection, Brown-Out
Quiescent Current [Typical] 85 µA
Sleep Mode Current [Typical] 15 µA
Component Count + Extras 6 + 23
Application / Target Market Automotive
Digital Cameras
Portable Devices
Design Author Linear Technology
Main I.C. Base Part LTM8061EV -8.2
Quiescent Current [Maximum]
Sleep Mode Current [Maximum]

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