LTC4251 Datasheet

LTC4251 Negative Voltage Hot Swap Controllers

The LTC®4251/LTC4251-1/LTC4251-2 negative voltage Hot Swap™ controllers allow a board to be safely inserted and removed from a live backplane. Output current is controlled by three stages of current limiting: a timed circuit breaker, active current limiting and a fast feedforward path that limits pe.

Features

n Allows Safe Board Insertion and Removal from a Live
  –48V Backplane n Floating Topology Permits Very High Voltage Operation n Programmable Analog Current Limit with Circuit Breaker Timer n Fast Response Time Limits Peak Fault Current n Programmable Timer n Programmable Undervoltage/Overvoltage Protection n Low Profile (1mm) ThinSOT™ Package APPLICATIONS n Hot Board Insertion n Electronic Circuit Breaker n
  –48V Distributed Power Systems n Negative Power Supply Control n Central Office Switching n Programmable Current Limiting Circuit n High Availability Servers n Disk Arrays DESCRIPTION The L.