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LINEAR TECHNOLOGY  LTC4252A-2IMS#PBF  HOT SWAP CNTRL, -48V, 10MSOP

LINEAR TECHNOLOGY LTC4252A-2IMS#PBF
Manufacturer Part No:
LTC4252A-2IMS#PBF
Order Code:
2295342
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LTC4252A-2IMS#PBF is a 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. Adjustable undervoltage and overvoltage detectors disconnect the load whenever the input supply exceeds the desired operating range. The LTC4252's supply input is shunt regulated, allowing safe operation with very high supply voltages. A multifunction timer delays initial startup and controls the circuit breaker's response time. The circuit breaker's response time is accelerated by sensing excessive MOSFET drain voltage, keeping the MOSFET within its safe operating area (SOA). An adjustable soft-start circuit controls MOSFET inrush current at start-up.
  • 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
  • Adjustable undervoltage/overvoltage protection

Product Information

Controller Applications:
-48V Distributed Power Systems, Central Office Switching, Negative Power Supply Control
Input Voltage:
-48V
Supply Voltage Min:
-
Supply Voltage Max:
-
Controller IC Case Style:
MSOP
No. of Pins:
10Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Industrial
  • Power Management

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000025