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  3. Hot Swap Controllers
  4. High Voltage Hot Swap Controllers
  5. LTC4380

Data Sheet Rev. C
JP
User Guides
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Alternative Parts

LT4363
LT4363

High Voltage Surge Stopper with Current Limit

LTC4364
LTC4364

Surge Stopper with Ideal Diode

Overview

Features and Benefits

  • Low Quiescent Current: 8µA Operating
  • Withstands Surge Voltage Up to the MOSFET Limit
  • Wide Operating Voltage Range: 4V to 72V
  • Overcurrent Protection
  • Selectable Internal 31.5V/50V or Adjustable Gate Clamp Voltage
  • Reverse Input Protection to –60V
  • Adjustable Turn-On Threshold
  • Adjustable Fault Timer with MOSFET Stress Acceleration
  • Controls N-Channel MOSFET
  • Latchoff and Retry Options
  • Low Retry Duty Cycle During Faults
  • 10-Pin DFN (3mm × 3mm) and MSOP Packages
  • AEC-Q100 Qualified for Automotive Applications

Product Details

The LTC4380 low quiescent current surge stopper protects loads from high voltage transients. Overvoltage protection is provided by clamping the gate voltage of an external N-channel MOSFET to limit the output voltage to a safe value during overvoltage events such as load dump in automobiles. Fixed gate clamp voltages are selectable for 12V and 24V/28V systems. For systems of any voltage up to 72V, use the adjustable gate clamp versions. Overcurrent protection is also provided.

An internal multiplier generates a TMR pin current proportional to VDS and ID, so that operating time in both overcurrent and overvoltage conditions is limited in accordance with MOSFET stress.

The GATE pin can drive back-to-back MOSFETs for reverse input protection, eliminating the voltage drop and dissipation of a Schottky diode solution. A low 8µA operating current permits use in always-on and battery powered applications. An accurate ON pin comparator monitors the input supply for undervoltage (UV) conditions and also serves as a shutdown input, reducing the quiescent current to 6µA.

Applications

  • Automotive/Avionic/Industrial Surge Protection
  • Hot Swap, Live Insertion
  • High Side Switch for Battery Powered Systems
  • Automotive Load Dump Protection

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This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (2)

Documentation & Resources

  • View All (13)
  • Data Sheets (1)
  • Reliability Data (1)
  • User Guides (1)
  • Product Information (1)
  • Product Selector Card (2)
  • Solutions Bulletins & Brochures (1)
  • Technical Articles (2)
  • Videos (2)
  • Press Releases (1)
  • Rarely Asked Questions (1)
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    Tools & Simulations

    LTspice

    LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

    LTspice

    Models for the following parts are available in LTspice:

    LTC4380-1
    LTC4380-2
    LTC4380-3
    LTC4380-4

    Product Recommendations

    LTC4380 Companion Parts

    Recommended Related Parts

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    LTC4380CDD-1#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380CDD-1#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380CDD-2#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380CDD-2#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380CDD-3#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380CDD-3#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380CDD-4#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380CDD-4#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380CMS-1#PBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380CMS-1#TRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380CMS-2#PBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380CMS-2#TRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380CMS-3#PBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380CMS-3#TRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380CMS-4#PBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380CMS-4#TRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HDD-1#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380HDD-1#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380HDD-2#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380HDD-2#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380HDD-3#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380HDD-3#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380HDD-4#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380HDD-4#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380HMS-1#PBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HMS-1#TRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HMS-1#WPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HMS-1#WTRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HMS-2#PBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HMS-2#TRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HMS-2#WPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HMS-2#WTRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HMS-3#PBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HMS-3#TRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HMS-3#WPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HMS-3#WTRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HMS-4#PBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HMS-4#TRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HMS-4#WPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380HMS-4#WTRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IDD-1#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380IDD-1#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380IDD-2#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380IDD-2#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380IDD-3#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380IDD-3#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380IDD-4#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380IDD-4#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4380IMS-1#PBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IMS-1#TRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IMS-1#WPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IMS-1#WTRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IMS-2#PBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IMS-2#TRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IMS-2#WPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IMS-2#WTRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IMS-3#PBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IMS-3#TRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IMS-3#WPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IMS-3#WTRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IMS-4#PBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IMS-4#TRPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IMS-4#WPBF Material Declaration Reliability Data 10-Lead MSOP
    LTC4380IMS-4#WTRPBF Material Declaration Reliability Data 10-Lead MSOP
    Wafer Fabrication Data R547 Reliability Data

    PCN-PDN Information

    Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.

    Select Model for PCN Information
    • LTC4380CMS-1#PBF Production
    • LTC4380CMS-1#TRPBF Production
    • LTC4380CMS-2#PBF Production
    • LTC4380CMS-2#TRPBF Production
    • LTC4380CMS-3#PBF Production
    • LTC4380CMS-3#TRPBF Production
    • LTC4380CMS-4#PBF Production
    • LTC4380CMS-4#TRPBF Production
    • LTC4380HMS-1#PBF Production
    • LTC4380HMS-1#TRPBF Production
    • LTC4380HMS-1#WPBF Production
    • LTC4380HMS-1#WTRPBF Production
    • LTC4380HMS-2#PBF Production
    • LTC4380HMS-2#TRPBF Production
    • LTC4380HMS-2#WPBF Production
    • LTC4380HMS-2#WTRPBF Production
    • LTC4380HMS-3#PBF Production
    • LTC4380HMS-3#TRPBF Production
    • LTC4380HMS-3#WPBF Production
    • LTC4380HMS-3#WTRPBF Production
    • LTC4380HMS-4#PBF Production
    • LTC4380HMS-4#TRPBF Production
    • LTC4380HMS-4#WPBF Production
    • LTC4380HMS-4#WTRPBF Production
    • LTC4380IMS-1#PBF Production
    • LTC4380IMS-1#TRPBF Production
    • LTC4380IMS-1#WPBF Production
    • LTC4380IMS-1#WTRPBF Production
    • LTC4380IMS-2#PBF Production
    • LTC4380IMS-2#TRPBF Production
    • LTC4380IMS-2#WPBF Production
    • LTC4380IMS-2#WTRPBF Production
    • LTC4380IMS-3#PBF Production
    • LTC4380IMS-3#TRPBF Production
    • LTC4380IMS-3#WPBF Production
    • LTC4380IMS-3#WTRPBF Production
    • LTC4380IMS-4#PBF Production
    • LTC4380IMS-4#TRPBF Production
    • LTC4380IMS-4#WPBF Production
    • LTC4380IMS-4#WTRPBF Production

    Support & Discussions

    LTC4380 Discussions

    RE: High Voltage limiting for LTC4380
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    LTC4380 Contact ADI Technical Support »
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