Linear Technology: 12V/100A Hot Swap Design for Server Farms

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As data centers grow in speed and capacity, backplane supplies are called on to deliver currents that push the performance boundaries of hot swap components. Hot swap solutions allow boards to be inserted and removed from a live backplane without disturbing the power distributed to other boards. A typical hot swap solution uses a series MOSFET to manage the flow of power between the backplane and the board—preventing glitches and faults from disrupting power to the rest of the system. This article shows how to address these issues using the example of a 1 2V/1 00A solution based on the LTC4218 Hot Swap controller. Read More

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