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LINEAR TECHNOLOGY  LT4363HMS-2#PBF  HOT SWAP CONTROLLER, 4V-80V, MSOP-12

LINEAR TECHNOLOGY LT4363HMS-2#PBF

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Product Overview

The LT4363HMS-2#PBF is a high voltage Surge Stopper with current limit. It protects loads from high voltage transients. It regulates the output during an overvoltage event, such as load dump in vehicles, by controlling the gate of an external N-channel MOSFET. The output is limited to a safe value allowing the loads to continue functioning. The LT4363 also monitors the voltage drop between the SNS and OUT pins to protect against overcurrent faults. An internal amplifier limits the voltage across the current sense resistor to 50mV. In either fault condition, a timer is started inversely proportional to MOSFET stress. Before the timer expires, the FLT pin pulls low to warn of an impending power down. If the condition persists, the MOSFET is turned off. It restarts after a cool down period. Two precision comparators can monitor the input supply for overvoltage (OV) and undervoltage (UV) conditions. When the potential is below the UV threshold, the external MOSFET is kept off.
  • Withstands surges over 100V with VCC clamp
  • Adjustable output clamp voltage
  • <5µs Fast overcurrent limit
  • Reverse input protection to -60V
  • Adjustable UV/OV comparator thresholds
  • Low 7µA Shutdown current
  • Adjustable fault timer
  • Controls N-channel MOSFET

Applications

Automotive; Avionics; Industrial; Power Management

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Product Information

Controller Applications:
Automotive / Avionic Surge Protection, Hot Swap / Live Insertion, Battery Powered Systems
Input Voltage:
-
Supply Voltage Min:
4V
Supply Voltage Max:
80V
Controller IC Case Style:
MSOP
No. of Pins:
12Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Each
Product Range:
-
MSL:
MSL 1 - Unlimited
Internal Switch:
Yes
SVHC:
No SVHC (17-Dec-2015)
Digital IC Case Style:
MSOP

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Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Product Traceability
RoHS Compliant:
Yes

Applications

  • Automotive;
  • Avionics;
  • Industrial;
  • Power Management

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