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BQ24064EVM-005


Evaluation Module

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Texas Instruments BQ24064EVM-005

The EVM provides a convenient method for evaluating the performance of a charge management solution for portable applications using the bq2406x product family. A complete designed and tested charger is presented. The charger is designed to deliver up to 1 A of continuous charge current for single-cell Li-Ion or Li-polymer applications using a DC power supply. The bq2406x series are highly integrated Li-Ion and Li-polymer linear chargers, targeted at space-limited portable applications. The bq2406x series offers a variety of safety features and functional options, while still implementing a complete charging system in a small package. The battery is charged in three phases: conditioning, constant or thermally regulated current, and constant voltage. Charge is terminated based on minimum current. An internal programmable charge timer provides a backup safety feature for charge termination and is dynamically adjusted during the thermal regulation phase. The bq2406x automatically re-starts the charge if the battery voltage falls below an internal threshold; sleep mode is set when the external input supply is removed. Multiple versions of this device family enable easy design of the bq2406x in cradle chargers or in the end equipment, while using low-cost or high-end AC adapters.

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