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See Technical Specifications

LTC4252-1IMS#PBF

Negative Voltage Hot Swap Controllers

Manufacturer:

Analog Devices, Inc
Mfr.Part #:

LTC4252-1IMS#PBF
Datasheet:

LTC4252-1IMS#PBF Datasheet (PDF)
feature-type:

Negative High Voltage
feature-fault-management:

Latched Off
feature-external-fet:

N-Channel
feature-number-of-channels:

1
EDA/CAD Models:

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LTC4252-1IMS#PBF General Description

The LTC4252 negative voltage Hot Swap^™controller allows 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.

Key Features

Allows Safe Board Insertion and Removal from a Live –48V Backplane
Floating Topology Permits Very High Voltage Operation
Current Limit With Circuit Breaker Timer
Fast Response Time Limits Peak Fault Current
Programmable Soft-Start Current Limit
Programmable Timer with Drain Voltage Accelerated Response
±1% Undervoltage/Overvoltage Threshold Accuracy (LTC4252A)
Adjustable Undervoltage/Overvoltage Protection
LTC4252-1/LTC4252A-1: Latch Off After Fault
LTC4252-2/LTC4252A-2: Automatic Retry After Fault
Available in 8-Pin and 10-Pin MSOP Packages

Application

Hot Board Insertion
Electronic Circuit Breaker
–48V Distributed Power Systems
Negative Power Supply Control
Central Office Switching
High Availability Servers
ATCA

Specifications

feature-type	Negative High Voltage	feature-fault-management	Latched Off
feature-external-fet	N-Channel	feature-number-of-channels	1
feature-process-technology		feature-minimum-operating-supply-voltage-v
feature-maximum-operating-supply-voltage-v		feature-maximum-supply-current-ma	2
feature-packaging	Tube	feature-rad-hard
feature-pin-count	10	feature-cecc-qualified	No
feature-esd-protection		feature-military	No
feature-aec-qualified	No	feature-aec-qualified-number
feature-auto-motive	No	feature-p-pap	No
feature-eccn-code	EAR99	feature-svhc	No
feature-svhc-exceeds-threshold	No