ADI LTC4211IS8#TRPBF

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 ranging from 2.5V to 16.5V. It provides soft-start and inrush current limiting during the start-up period which has a programmable duration. Two on-chip current limit comparators provide dual level overcurrent circuit breaker protection. The FB pin monitors the output supply voltage and signals the RESET output pin. The ON pin signal turns the chip on and off and can also be used for the reset function. The MS package has FAULT and FILTER pins to provide additional functions like fault indication, autoretry or latch-off modes, programmable current limit response time and programmable overvoltage protection using an external Zener diode clamp.

• Allows Safe Board Insertion and Removal from a Live Backplane
• Controls Supply Voltages from 2.5V to 16.5V
• Programmable Soft-Start with Inrush Current Limiting, No External Gate Capacitor Required
• Faster Turn-Off Time Because No External Gate Capacitor is Required
• Dual Level Overcurrent Fault Protection
• Programmable Response Time for Overcurrent Protection (MS)
• Programmable Overvoltage Protection (MS)
• Automatic Retry or Latched Mode Operation (MS)
• High Side Drive for an External N-Channel FET
• User-Programmable Supply Voltage Power-Up Rate
• FB Pin Monitors VOUT and Signals RESET
• Glitch Filter Protects Against Spurious RESET Signal

• Electronic Circuit Breaker
• Hot Board Insertion and Removal (Either On Backplane or On Removable Card)
• Industrial High Side Switch/Circuit Breaker