PDF, 450 Kb, Revision: C, Datei hochgeladen: Oct 25, 2017
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LTC4211
Hot Swap Controller with
Multifunction Current Control
FEATURES DESCRIPTION Allows Safe Board Insertion and Removal from a Live Backplane
n Controls Supply Voltages from 2.5V to 16.5V
n Programmable Soft-Start with Inrush Current Limiting, No External Gate Capacitor Required
n Faster Turn-Off Time Because No External Gate Capacitor is Required
n Dual Level Overcurrent Fault Protectio Programmable Response Time for Overcurrent Protection (MS)
n Programmable Overvoltage Protection (MS)
n Automatic Retry or Latched Mode Operation (MS)
n High Side Drive for an External N-Channel FET
n User-Programmable Supply Voltage Power-Up Rate
n FB Pin Monitors V
OUT and Signals RESET
n Glitch Filter Protects Against Spurious RESET Signal The LTCВ®4211 is 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. The LTC4211 provides soft-start and
inrush current limiting during the start-up period which
has a programmable duration. n APPLICATIONS Electronic Circuit Breaker Hot Board Insertion and Removal (Either On
Backplane or On Removable Card)
n Industrial High Side Switch/Circuit Breaker Two on-chip current limit comparators provide dual level …