DESCRIPTION
The LTC®4210-3/LTC4210-4 is a 6-pin SOT-23 Hot SwapTM 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 a supply voltage ranging from 2.7V to 7V. The LTC4210 provides the initial timing cycle and allows the GATE to be ramped up at an adjustable rate.

FEATURES
■ Allows Safe Board Insertion and Removal from a Live Backplane
■ Adjustable Analog Current Limit with Circuit Breaker
■ Fast Response Limits Peak Fault Current
■ Automatic Retry or Latch Off On Current Fault
■ Adjustable Supply Voltage Power-Up Rate
■ High Side Drive for External MOSFET Switch
■ Controls Supply Voltages from 2.7V to 7V
■ Undervoltage Lockout
■ Adjustable Overvoltage Protection
■ Low Profile (1mm) SOT-23 (ThinSOTTM) Package

APPLICATIONS
■ Hot Board Insertion
■ Electronic Circuit Breaker
■ Industrial High Side Switch/Circuit Breaker