Maxim introduces NiMH charger IC
Maxim Integrated Products
DS2710 NiMH charger IC
Maxim Integrated Products has introduced the DS2710, a standalone NiMH charger IC with alkaline-cell detection.
The DS2710 eliminates the need for circuit design or microcontroller programming and offers a single-chip charger solution that protects against system damage due to corrosive cell leakage.
The DS2710 thus makes it easy to add in-system NiMH charging to end equipment powered by AA or AAA batteries.
Suitable for charging batteries from a USB port, the DS2710 is suitable for MP3 players, voice recorders, hand-held games, toys, or any other application capable of using standard-size alkaline or NiMH batteries.
The DS2710's charge-control output regulates charge current using a switch mode or linear control scheme, enabling application designers to choose between maximising charge rate and minimising solution cost and size.
The device offers control for fast-charging NiMH cells, including pre-charge conditioning, negative-delta-V fast-charge termination, and top-off charging.
Voltage, temperature and charge-timer monitoring during all charge phases provides redundant secondary charge-termination methods for additional protection against overcharge.
Additionally, a status pin drives an LED to indicate pre-charge, fast-charge, or fault conditions.
The DS2710 is available in a 3mm x 4mm, 10-pin TQFN package.
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