LT4363IDE-2#PBF - 

High Voltage Surge Stopper, 4.5V to 12V supply, DFN-12

LT4363IDE-2#PBF - High Voltage Surge Stopper, 4.5V to 12V supply, DFN-12
LT4363IDE-2#PBF - High Voltage Surge Stopper, 4.5V to 12V supply, DFN-12

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Product Overview

The LT4363IDE-2#PBF is a high voltage Surge Stopper with current limit 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 over-current 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. The LT4363-2 restarts after a cool down period. Two precision comparators can monitor the input supply for overvoltage (OV) and under-voltage (UV) conditions.
  • Withstands surges over 80V with VCC clamp
  • Adjustable output clamp voltage
  • Fast over-current limit (less than 5µs)
  • Reverse input protection to -60V
  • Adjustable UV/OV comparator thresholds
  • Low 7µA shutdown current
  • Shutdown pin withstands -60 to 100V
  • Adjustable fault timer
  • Controls N-channel MOSFET
  • Less than 1% retry duty cycle during faults


Automotive, Avionics, Industrial, Power Management, Safety

Product Information

Automotive / Avionic Surge Protection, Battery Powered Systems, Hot Swap / Live Insertion
MSL 1 - Unlimited
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2097925 - Hot Swap Controller, 4V to 80V supply, DFN-12

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