The LTC4218 is a Hot Swap controller that allows a board to be safely inserted and removed from a live backplane. An internal high side switch driver controls the gate of an external N-channel MOSFET for supply voltages from 2.9V to 26.5V. A dedicated 12V version (LTC4218-12) contains preset 12V specific thresholds, while the standard LTC4218 allows adjustable thresholds. The LTC4218 provides an accurate (5%) current limit with current foldback limiting. The current limit threshold can be adjusted dynamically using an external pin. Additional features include a current monitor output that amplifies the sense voltage for ground referenced current sensing. Overvoltage, undervoltage and power good monitoring are also provided. Applications * RAID Systems * ATCA, AMC, μTCA Systems * Server I/O Cards * Industrial * Wide Operating Voltage Range: 2.9V to 26.5V * Adjustable, 5% Accurate 15mV Current Limit * Current Monitor Output * Adjustable Current Limit Timer Before Fault * Power Good and Fault Outputs * Adjustable Inrush Current Control * 2% Accurate Undervoltage and Overvoltage Protection * Available in 16-Lead SSOP and 16-Pin 5mm × 3mm DFN Packages https://elecena.pl/product/643078/hot-swap-controller 2008-05-10 https://elecena.pl/product/643078/hot-swap-controller 2014-07-09 https://elecena.pl/product/643078/hot-swap-controller 2025-01-18