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LTC4252B-1 - Negative Voltage Hot Swap Controllers

Description

n Allows Safe Board Insertion and Removal from a Live 48V Backplane n Floating Topology Permits Very High Voltage Operation n Current Limit With Circuit Breaker Timer n Fast Response Time Limits Peak Fault Current n Programmable Soft-Start Current Limit n Programmable Timer with Dra

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LTC4252B-1/LTC4252B-2 LTC4252C-1/LTC4252C-2 Negative Voltage Hot Swap Controllers FEATURES DESCRIPTION n Allows Safe Board Insertion and Removal from a Live – 48V Backplane n Floating Topology Permits Very High Voltage Operation n Current Limit With Circuit Breaker Timer n Fast Response Time Limits Peak Fault Current n Programmable Soft-Start Current Limit n Programmable Timer with Drain Voltage Accelerated Response n ±1% Undervoltage/Overvoltage Threshold (LTC4252C) n Improved Ruggedness Shunt Regulator ■ Adjustable Undervoltage/Overvoltage Protection ■ LTC4252B-1/LTC4252C-1: Latch Off After Fault ■ LTC4252B-2/LTC4252C-2: Automatic Retry After Fault ■ Available in 8-Pin and 10-Pin MSOP Packages APPLICATIONS n Hot Board Insertion n Electronic Circuit Breaker n – 48V Distr
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