New from Maxim is the DS2710, a standalone, NiMH charger IC with alkaline-cell detection.
Eliminating the need for circuit design or micro-controller programming, this device offers an elegant, single-chip charger solution that protects against system damage due to corrosive cell leakage. Suitable for charging batteries from a USB port, the DS2710 is well suited for MP3 players, voice recorders, handheld 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 comprehensive charge control for fast-charging NiMH cells, including precharge conditioning, negative-delta-V fast-charge termination, and top-off charging.
Voltage, temperature, and charge-timer monitoring during all charge phases provide redundant secondary charge-termination methods for additional protection against overcharge. Additionally, a status pin drives an LED to indicate precharge, fast-charge, or fault conditions.
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