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LINEAR TECHNOLOGY  LTC4280CUFD#PBF  Hot Swap Controller, 2.9V to 15V supply, 250 mV output, QFN-24

LINEAR TECHNOLOGY LTC4280CUFD#PBF
Manufacturer Part No:
LTC4280CUFD#PBF
Order Code:
1839102
Technical Datasheet:
See all Technical Docs

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

Product Overview

The LTC4280CUFD#PBF is a Hot Swap Controller allows a board to be safely inserted and removed from a live backplane. Using an external N-channel pass transistor, board supply voltage and inrush current are ramped up at an adjustable rate. An I²C interface and on board ADC allow for monitoring of load current, voltage and fault status. The device features adjustable analog foldback current limit and a FILTER pin which configures the time spent in overcurrent before declaring a fault. An I²C interface may configure the part to latch off or automatically restart after the LTC4280 detects a current limit fault. The controller has additional features to interrupt the host when a fault has occurred, notify when output power is good, detect insertion of a load card and power-up either automatically upon insertion or wait for an I²C command to turn on.
  • 8-bit ADC monitors current and voltage
  • Adjustable overcurrent filter time
  • High side drive for external N-channel MOSFET
  • No external gate capacitor required
  • Input overvoltage/undervoltage protection
  • Optional latch off or auto-retry after faults
  • Alerts host after faults
  • Inrush current limit with foldback

Product Information

Controller Applications:
Computers, Electronic Circuit Breakers, Live Board Insertion, Platform Management, Servers
Input Voltage:
15V
Supply Voltage Min:
2.9V
Supply Voltage Max:
15V
Controller IC Case Style:
QFN
No. of Pins:
24Pins
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Packaging:
Each
Product Range:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Communications & Networking
  • Computers & Computer Peripherals

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):
.0002

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