Datasheet Linear Technology LTC4251CS6#PBF — 数据表

LTC4251/LTC4251-1/
LTC4251-2
Negative Voltage
Hot Swap Controllers in SOT-23
FEATURES DESCRIPTION Allows Safe Board Insertion and Removal from a
Live –48V Backplane
n Floating Topology Permits Very High Voltage
Operatio Programmable Analog Current Limit with Circuit
Breaker Timer
n Fast Response Time Limits Peak Fault Current
n Programmable Timer
n Programmable Undervoltage/Overvoltage Protectio Low Profile (1mm) ThinSOTв„ў Package The LTCВ®4251/LTC4251-1/LTC4251-2 negative voltage
Hot Swapв„ў 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 peak current under worst-case catastrophic
fault conditions. n Programmable undervoltage and overvoltage detectors
disconnect the load whenever the input supply exceeds
the desired operating range. The supply input is shunt
regulated, allowing safe operation with very high supply
voltages. A multifunction timer delays initial start-up and
controls the circuit breaker’s response time. APPLICATIONS n n n n n n Hot Board Insertion
Electronic Circuit Breaker …