Standalone 1.2A Li-Ion Battery Chargers Automatically Select Between USB and Wall Adapter Inputs

Linear Technology Corporation introduces the LTC4096/X standalone dual-input linear battery chargers. These devices charge single-cell Li-Ion/Polymer batteries from wall adapter or USB power sources. The LTC4096/X use a constant-current/constant-voltage algorithm for charging, with programmable charge current up to 1.2A from a wall adapter supply or up to 1A from a USB supply while automatically sensing the presence of voltage at each input. Applications include PDAs, MP3 players, digital cameras, lightweight portable medical and test equipment and large color screen cell phones.

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