The LTC4217IDHC#PBF is a 2A integrated Hot Swap Controller that allows a board to be safely inserted and removed from a live backplane. The part integrates a Hot Swap controller, power MOSFET and current sense resistor in a single package for small form factor applications. It allows adjustable thresholds. It provides separate inrush current control and a 5% accurate 2A current limit with foldback current limiting. The current limit threshold can be adjusted dynamically using an external pin. Additional features include a current monitor output that amplifies the sense resistor voltage for ground referenced current sensing and a MOSFET temperature monitor output. Thermal limit, overvoltage, undervoltage and power good monitoring are also provided.
33mR MOSFET with RSENSE
5% Accurate adjustable current limit
Current and temperature monitor outputs
Overtemperature protection
Adjustable current limit timer before fault
Power good and fault outputs
Adjustable inrush current control
2% Accurate undervoltage and overvoltage protection
