ROHM is announcing the availability of a 12- to 76-Vdc input, 3A variable output voltage, dc-dc buck converter with integrated 76V MOSFET optimized for high power (high voltage x large current) applications such as motors, factory automation equipment, communications infrastructure, and industrial machinery. The BD9G341AEFJ utilizes ROHM’s high-voltage 0.6um BiCDMOS process to achieve a maximum breakdown voltage of 80V (the highest in ROHM’s non-isolated dc-dc converter lineup) and a continuous operating input range of 12- to 76-Vdc, while market-proven advanced analog design technology claims the highest conversion efficiency in its class.
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In addition, multiple protection circuits minimize heat generation, even during output pin shorts (contact), preventing possible damage and increasing reliability compared with conventional products. And the compact 8-pin package requires fewer parts and reduces mounting area, contributing to easier PCB placement and end-product miniaturization.
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Unlike conventional protection functions that normally cannot suppress heat generation during output shorts (contact), ROHM’s proprietary protection function minimizes heat generation during accidental output shorts, preventing damage and improving system reliability. The BD9G341AEFJ is offered in a compact 8-pin package (4.9mm x 6.0mm, t=1.0mm) and features a highly integrated design that reduces the number of parts required from 17 to 12, simplifying end-product design, bill of materials costs, and development efforts.
Applications are expected to include: Communication infrastructure such as switching and base stations, office telephone systems, routers, and other equipment requiring 48V input. Motor devices exposed to high surge voltages (e.g. electric bicycles, vacuum cleaners, industrial controllers). The BD9G341AEFJ is available immediately and costs $1.82 in lots of 2,500 pieces.
source: http://www.powerpulse.net/story.php?storyID=33299
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