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LT4363 Datasheet

LT4363 Datasheet

High Voltage Surge Stopper with Current Limit
Part No.: LT4363
Page: 24 Pages
Size: 226 KB
Manufacturer: Linear Technology
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Views: 1
Update Time: 2023-12-29 10:42:08
DataSheet: Download

LT4363 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LT4363CDE-1#PBF Tube 91 43631 1 12 0°C ~ 70°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363CDE-1#TRPBF Reel 2500 43631 1 12 0°C ~ 70°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363CDE-1#TRMPBF Reel 500 43631 1 12 0°C ~ 70°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363IDE-1#PBF Tube 91 43631 1 12 -40°C ~ 85°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363IDE-1#TRPBF Reel 2500 43631 1 12 -40°C ~ 85°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363IDE-1#TRMPBF Reel 500 43631 1 12 -40°C ~ 85°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363HDE-1#PBF Tube 91 43631 1 12 -40°C ~ 125°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363HDE-1#TRPBF Reel 2500 43631 1 12 -40°C ~ 125°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363HDE-1#TRMPBF Reel 500 43631 1 12 -40°C ~ 125°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363CDE-2#PBF Tube 91 43632 1 12 0°C ~ 70°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363CDE-2#TRPBF Reel 2500 43632 1 12 0°C ~ 70°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363CDE-2#TRMPBF Reel 500 43632 1 12 0°C ~ 70°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363IDE-2#PBF Tube 91 43632 1 12 -40°C ~ 85°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363IDE-2#TRPBF Reel 2500 43632 1 12 -40°C ~ 85°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363IDE-2#TRMPBF Reel 500 43632 1 12 -40°C ~ 85°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363HDE-2#PBF Tube 91 43632 1 12 -40°C ~ 125°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363HDE-2#TRPBF Reel 2500 43632 1 12 -40°C ~ 125°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363HDE-2#TRMPBF Reel 500 43632 1 12 -40°C ~ 125°C 12-Lead (4mm × 3mm) Plastic DFN  
LT4363CMS-1#PBF Tube 37 43631 1 12 0°C ~ 70°C 12-Lead Plastic MSOP  
LT4363CMS-1#TRPBF Reel 2500 43631 1 12 0°C ~ 70°C 12-Lead Plastic MSOP  
LT4363CMS-1#TRMPBF Reel 500 43631 1 12 0°C ~ 70°C 12-Lead Plastic MSOP  
LT4363HMS-1#PBF Tube 37 43631 1 12 -40°C ~ 125°C 12-Lead Plastic MSOP  
LT4363HMS-1#TRPBF Reel 2500 43631 1 12 -40°C ~ 125°C 12-Lead Plastic MSOP  
LT4363HMS-1#TRMPBF Reel 500 43631 1 12 -40°C ~ 125°C 12-Lead Plastic MSOP  
LT4363IMS-1#PBF Tube 37 43631 1 12 -40°C ~ 85°C 12-Lead Plastic MSOP  
LT4363IMS-1#TRPBF Reel 2500 43631 1 12 -40°C ~ 85°C 12-Lead Plastic MSOP  
LT4363IMS-1#TRMPBF Reel 500 43631 1 12 -40°C ~ 85°C 12-Lead Plastic MSOP  
LT4363MPMS-1#PBF Tube 37 43631 1 12 -55°C ~ 125°C 12-Lead Plastic MSOP  
LT4363MPMS-1#TRPBF Reel 2500 43631 1 12 -55°C ~ 125°C 12-Lead Plastic MSOP  
LT4363MPMS-1#TRMPBF Reel 500 43631 1 12 -55°C ~ 125°C 12-Lead Plastic MSOP  
LT4363CMS-2#PBF Tube 37 43632 1 12 0°C ~ 70°C 12-Lead Plastic MSOP  
LT4363CMS-2#TRPBF Reel 2500 43632 1 12 0°C ~ 70°C 12-Lead Plastic MSOP  
LT4363CMS-2#TRMPBF Reel 500 43632 1 12 0°C ~ 70°C 12-Lead Plastic MSOP  
LT4363HMS-2#PBF Tube 37 43632 1 12 -40°C ~ 125°C 12-Lead Plastic MSOP  
LT4363HMS-2#TRPBF Reel 2500 43632 1 12 -40°C ~ 125°C 12-Lead Plastic MSOP  
LT4363HMS-2#TRMPBF Reel 500 43632 1 12 -40°C ~ 125°C 12-Lead Plastic MSOP  
LT4363IMS-2#PBF Tube 37 43632 1 12 -40°C ~ 85°C 12-Lead Plastic MSOP  
LT4363IMS-2#TRPBF Reel 2500 43632 1 12 -40°C ~ 85°C 12-Lead Plastic MSOP  
LT4363IMS-2#TRMPBF Reel 500 43632 1 12 -40°C ~ 85°C 12-Lead Plastic MSOP  
LT4363MPMS-2#PBF Tube 37 43632 1 12 -55°C ~ 125°C 12-Lead Plastic MSOP  
LT4363MPMS-2#TRPBF Reel 2500 43632 1 12 -55°C ~ 125°C 12-Lead Plastic MSOP  
LT4363MPMS-2#TRMPBF Reel 500 43632 1 12 -55°C ~ 125°C 12-Lead Plastic MSOP  
LT4363CS-1#PBF Tube 50 LT4363S-1 1 16 0°C ~ 70°C 16-Lead Plastic SO  
LT4363CS-1#TRPBF Reel 2500 LT4363S-1 1 16 0°C ~ 70°C 16-Lead Plastic SO  
LT4363CS-1#TRMPBF Reel 500 LT4363S-1 1 16 0°C ~ 70°C 16-Lead Plastic SO  
LT4363HS-1#PBF Tube 50 LT4363S-1 1 16 -40°C ~ 125°C 16-Lead Plastic SO  
LT4363HS-1#TRPBF Reel 2500 LT4363S-1 1 16 -40°C ~ 125°C 16-Lead Plastic SO  
LT4363HS-1#TRMPBF Reel 500 LT4363S-1 1 16 -40°C ~ 125°C 16-Lead Plastic SO  
LT4363IS-1#PBF Tube 50 LT4363S-1 1 16 -40°C ~ 85°C 16-Lead Plastic SO  
LT4363IS-1#TRPBF Reel 2500 LT4363S-1 1 16 -40°C ~ 85°C 16-Lead Plastic SO  
LT4363IS-1#TRMPBF Reel 500 LT4363S-1 1 16 -40°C ~ 85°C 16-Lead Plastic SO  
LT4363MPS-1#PBF Tube 50 LT4363S-1 1 16 -55°C ~ 125°C 16-Lead Plastic SO  
LT4363MPS-1#TRPBF Reel 2500 LT4363S-1 1 16 -55°C ~ 125°C 16-Lead Plastic SO  
LT4363MPS-1#TRMPBF Reel 500 LT4363S-1 1 16 -55°C ~ 125°C 16-Lead Plastic SO  
LT4363CS-2#PBF Tube 50 LT4363S-2 1 16 0°C ~ 70°C 16-Lead Plastic SO  
LT4363CS-2#TRPBF Reel 2500 LT4363S-2 1 16 0°C ~ 70°C 16-Lead Plastic SO  
LT4363CS-2#TRMPBF Reel 500 LT4363S-2 1 16 0°C ~ 70°C 16-Lead Plastic SO  
LT4363HS-2#PBF Tube 50 LT4363S-2 1 16 -40°C ~ 125°C 16-Lead Plastic SO  
LT4363HS-2#TRPBF Reel 2500 LT4363S-2 1 16 -40°C ~ 125°C 16-Lead Plastic SO  
LT4363HS-2#TRMPBF Reel 500 LT4363S-2 1 16 -40°C ~ 125°C 16-Lead Plastic SO  
LT4363IS-2#PBF Tube 50 LT4363S-2 1 16 -40°C ~ 85°C 16-Lead Plastic SO  
LT4363IS-2#TRPBF Reel 2500 LT4363S-2 1 16 -40°C ~ 85°C 16-Lead Plastic SO  
LT4363IS-2#TRMPBF Reel 500 LT4363S-2 1 16 -40°C ~ 85°C 16-Lead Plastic SO  
LT4363MPS-2#PBF Tube 50 LT4363S-2 1 16 -55°C ~ 125°C 16-Lead Plastic SO  
LT4363MPS-2#TRPBF Reel 2500 LT4363S-2 1 16 -55°C ~ 125°C 16-Lead Plastic SO  
LT4363MPS-2#TRMPBF Reel 500 LT4363S-2 1 16 -55°C ~ 125°C 16-Lead Plastic SO  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LT4363 Datasheet(PDF)

LT4363 Datasheet(Picture)

LT4363 Features

  • Withstands Surges Over 80V with VCC Clamp
  • Wide Operating Voltage Range: 4V to 80V
  • Adjustable Output Clamp Voltage
  • Fast Overcurrent Limit: Less Than 5μs
  • Reverse Input Protection to –60V
  • Adjustable UV/OV Comparator Thresholds
  • Low 7μA Shutdown Current
  • Shutdown Pin Withstands –60V to 100V
  • Adjustable Fault Timer
  • Controls N-Channel MOSFET
  • Less Than 1% Retry Duty Cycle During Faults, LT4363-2
  • Available in 12-Pin (4mm × 3mm) DFN, 12-Pin MSOP or 16-Pin SO Packages

LT4363 Applications

  • Automotive/Avionic Surge Protection
  • Hot Swap/Live Insertion
  • High Side Switch for Battery Powered Systems
  • Intrinsic Safety Applications

LT4363 Description

The LT4363 surge stopper 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. The LT4363-1 remains off until reset whereas the LT4363-2 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. If the input supply voltage is above the OV threshold, the MOSFET is not allowed to turn back on. Back-to-back MOSFETs can be used in lieu of a Schottky diode for reverse input protection, reducing voltage drop and power loss. A shutdown pin reduces the quiescent current to less than 7μA during shutdown.

LT4363 Datasheet Related Parts

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