DESIGN FEATURES Low Voltage Hot Swap Controller
with Inrush Current Control by Chew Lye Huat
Introduction
The LTC4216 is a low voltage Hot Swap
controller that allows a board to be
safely inserted and removed from a live
backplane. The LTC4216 is designed
to meet the latest low voltage board
supply requirements with its unique
feature of controlling load voltages
from 0V to 6V. It also features an adjustable soft-start that provides both
inrush current limiting and current
slew rate control at start-up, important
for the large load capacitors typical in
low-voltage applications.
When a board is plugged into a
backplane, the inrush currents can be
large enough to create a glitch on the
load supply causing other boards on
the bus to malfunction. The LTC4216
provides a low circuit breaker trip
threshold (25mV) with adjustable
response time and analog current …