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    AOS's new AlphaDFN MOSFETs series address battery pack protection

    Alpha and Omega Semi's AlphaDFN solution enhances mobile battery protection

    02/05/2015

    Alpha and Omega Semiconductor, a designer, developer and
    global supplier of a broad range of power semiconductors and power ICs,
    today announced the release of two new MOSFETs optimized for battery
    protection applications. The AOC2804 and AOC2806 are the latest
    additions to the AlphaDFN(TM) package portfolio which takes chip scale
    packaging to the next level. These devices are specifically targeting
    one and two cells portable battery pack applications such as those
    found in the latest smart phones, tablets, media players and wearable
    devices.

    In mobile battery pack applications the protection MOSFET controls
    charging and discharging of the battery, and is critical to battery
    life and battery safety. The new generation of devices is optimized
    with AOS's proprietary power trench technology, which minimizes RSS
    (source- to-source resistance) in a common-drain MOSFET configuration.
    For the same dimensions, these new devices can deliver 20% lower
    resistance, which makes them ideal for conserving battery life.
    AOC2804, 1.5mm x 1.5mm, is aimed at 22 m? max RSS level applications
    such as feature phones and wearable devices. AOC2806, with slightly
    larger dimension at 1.7mm x 1.7mm, is a 18 m? max RSS device that is
    best-suited for smart phones. When used in parallel, either device can
    significantly reduce conduction loss by offering <10 m? RSS.

    In addition to the silicon technology, the AOC2804 and AOC2806 feature
    AOS's proprietary AlphaDFN packaging technology encapsulating silicon
    in a protective molding compound. The resulting product still provides
    an ultra-thin 0.3mm solution, while providing a more robust structure
    to solve die chipping and placement issues associated with standard CSP
    products.

    "AOS's new AlphaDFN MOSFETs series deliver a superior solution for
    battery pack protection. Their low RSS and small chip-scale footprint
    help designers enhance battery life while saving precious board space.
    Additionally, the extra layer of protection in the proprietary AlphaDFN
    package enhances mechanical robustness and reliability," said George
    Feng, Senior Manager for Product Marketing.

    AOC2804 and AOC2806 are all Halogen-Free and RoHS compliant.

    Availability
    All devices are immediately available in production quantities with a
    lead-time of 12-14 weeks. * The unit price is for 1,000 pieces.

    Alpha and Omega Semiconductor

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