The LTC4217 is a high-performance 2A hot swap controller that integrates the MOSFET and sense resistor, for accurate current limiting and load current monitoring in tight spaces.
This document is Design Note 466 for the LTC4217 Hot Swap Controller. The device integrates a power MOSFET and a current sense resistor into a single 5mm x 3mm DFN package (or 20-lead TSSOP) to save board space while providing accurate inrush current limiting and load current monitoring.
The controller fits onto boards operating in a voltage range from 2.9V to 26.5V.
If the die temperature exceeds 145°C, the MOSFET is turned off.