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  2. Power Monitor, Control, and Protection
  3. Surge Stopper, Overvoltage, and Overcurrent Protection
  4. LTC4366

Data Sheet
PDF
CN | JP
User Guides
2 View All

Alternative Parts

LT4363
LT4363

High Voltage Surge Stopper with Current Limit

LTC4364
LTC4364

Surge Stopper with Ideal Diode

Overview

Features and Benefits

  • Rugged Floating Topology
  • Wide Operating Voltage Range: 9V to >500V
  • Adjustable Output Clamp Voltage
  • Controls N-Channel MOSFET
  • Adjustable Protection Timer
  • Internal 9 Second Cool-Down Timer
  • Shutdown IQ < 14μA
  • Available in 8-Lead TSOT and 8-Lead 3mm × 2mm DFN Packages

Product Details

The LTC4366 surge stopper protects loads from high voltage transients. By controlling the gate of an external N-channel MOSFET, the LTC4366 regulates the output during an overvoltage transient. The load may remain operational while the overvoltage is dropped across the MOSFET. Placing a resistor in the return line isolates the LTC4366 and allows it to float up with the supply; therefore, the upper limit on the output voltage depends only on the availability of high valued resistors and MOSFET ratings.

An adjustable overvoltage timer prevents MOSFET damage during the surge while an additional 9-second timer provides for MOSFET cool down. A shutdown pin reduces the quiescent current to less than 14μA during shutdown. After a fault the LTC4366-1 latches off while the LTC4366-2 will auto-retry.

Applications

  • Industrial, Automotive and Avionic Surge Protection
  • High Voltage DC Distribution
  • 28V Vehicle Systems

Product Categories

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Product Lifecycle icon-recommended Recommended for New Designs

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 (3)

Documentation & Resources

  • View All (11)
  • Data Sheets (1)
  • Reliability Data (1)
  • User Guides (2)
  • Product Selector Card (1)
  • Solutions Bulletins & Brochures (1)
  • Technical Articles (3)
  • Videos (2)
    • Document Type

    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.

    To launch ready-to-run LTspice demonstration circuits for this part:

    Step 1: Download and install LTspice on your computer.

    Step 2: Click on the link in the section below to download a demonstration circuit.

    Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

    LTspice

    LTspice Simulations

    LTC4366-2 Demo Circuit - Surge Protected Automotive 12V Supply (9-100V to 18V Clamp @ 4A)

    Models for the following parts are available in LTspice:

    LTC4366-1
    LTC4366-2

    Product Recommendations

    LTC4366 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
    LTC4366CDDB-1#TRMPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366CDDB-1#TRPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366CDDB-2#TRMPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366CDDB-2#TRPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366CTS8-1#TRMPBF Material Declaration Reliability Data 8-Lead SOT-23
    LTC4366CTS8-1#TRPBF Material Declaration Reliability Data 8-Lead SOT-23
    LTC4366CTS8-2#TRMPBF Material Declaration Reliability Data 8-Lead SOT-23
    LTC4366CTS8-2#TRPBF Material Declaration Reliability Data 8-Lead SOT-23
    LTC4366HDDB-1#TRMPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366HDDB-1#TRPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366HDDB-2#TRMPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366HDDB-2#TRPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366HTS8-1#TRMPBF Material Declaration Reliability Data 8-Lead SOT-23
    LTC4366HTS8-1#TRPBF Material Declaration Reliability Data 8-Lead SOT-23
    LTC4366HTS8-2#TRMPBF Material Declaration Reliability Data 8-Lead SOT-23
    LTC4366HTS8-2#TRPBF Material Declaration Reliability Data 8-Lead SOT-23
    LTC4366IDDB-1#TRMPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366IDDB-1#TRPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366IDDB-2#TRMPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366IDDB-2#TRPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366ITS8-1#TRMPBF Material Declaration Reliability Data 8-Lead SOT-23
    LTC4366ITS8-1#TRPBF Material Declaration Reliability Data 8-Lead SOT-23
    LTC4366ITS8-2#TRMPBF Material Declaration Reliability Data 8-Lead SOT-23
    LTC4366ITS8-2#TRPBF Material Declaration Reliability Data 8-Lead SOT-23
    LTC4366MPDDB-1#TRMPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366MPDDB-1#TRPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366MPDDB-2#TRMPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366MPDDB-2#TRPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 2mm w/ EP)
    LTC4366MPTS8-1#TRMPBF Material Declaration Reliability Data 8-Lead SOT-23
    LTC4366MPTS8-1#TRPBF Material Declaration Reliability Data 8-Lead SOT-23
    LTC4366MPTS8-2#TRMPBF Material Declaration Reliability Data 8-Lead SOT-23
    LTC4366MPTS8-2#TRPBF Material Declaration Reliability Data 8-Lead SOT-23
    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
    • LTC4366CDDB-1#TRMPBF Production
    • LTC4366CDDB-1#TRPBF Production
    • LTC4366CDDB-2#TRMPBF Production
    • LTC4366CDDB-2#TRPBF Production
    • LTC4366CTS8-1#TRMPBF Production
    • LTC4366CTS8-1#TRPBF Production
    • LTC4366CTS8-2#TRMPBF Production
    • LTC4366CTS8-2#TRPBF Production
    • LTC4366HDDB-1#TRMPBF Production
    • LTC4366HDDB-1#TRPBF Production
    • LTC4366HDDB-2#TRMPBF Production
    • LTC4366HDDB-2#TRPBF Production
    • LTC4366HTS8-1#TRMPBF Production
    • LTC4366HTS8-1#TRPBF Production
    • LTC4366HTS8-2#TRMPBF Production
    • LTC4366HTS8-2#TRPBF Production
    • LTC4366IDDB-1#TRMPBF Production
    • LTC4366IDDB-1#TRPBF Production
    • LTC4366IDDB-2#TRMPBF Production
    • LTC4366IDDB-2#TRPBF Production
    • LTC4366ITS8-1#TRMPBF Production
    • LTC4366ITS8-1#TRPBF Production
    • LTC4366ITS8-2#TRMPBF Production
    • LTC4366ITS8-2#TRPBF Production
    • LTC4366MPDDB-1#TRMPBF Production
    • LTC4366MPDDB-1#TRPBF Production
    • LTC4366MPDDB-2#TRMPBF Production
    • LTC4366MPDDB-2#TRPBF Production
    • LTC4366MPTS8-1#TRMPBF Production
    • LTC4366MPTS8-1#TRPBF Production
    • LTC4366MPTS8-2#TRMPBF Production
    • LTC4366MPTS8-2#TRPBF Production

    Support & Discussions

    LTC4366 Discussions

    RE: LTC4366 with parallel FETs?
    RE: LTC4366-2 RLC Ratings for High Voltage Application
    All LTC4366 Discussions
    LTC4366 Contact ADI Technical Support »
    LTC4366 Ask your question »
    LTC4366 Contact ADI Technical Support » LTC4366 Ask your question »

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