LTC4366

RECOMMENDED FOR NEW DESIGNS

High Voltage Surge Stopper

Part Models: 32
1ku List Price: Starting From $3.18

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Overview

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 I_Q < 14μA
Available in 8-Lead TSOT and 8-Lead 3mm × 2mm DFN Packages

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

Part Models: 32
1ku List Price: Starting From $3.18

Documentation

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 Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC4366CDDB-1#TRMPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366CDDB-1#TRPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366CDDB-2#TRMPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366CDDB-2#TRPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366CTS8-1#TRMPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366CTS8-1#TRPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366CTS8-2#TRMPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366CTS8-2#TRPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366HDDB-1#TRMPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366HDDB-1#TRPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366HDDB-2#TRMPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366HDDB-2#TRPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366HTS8-1#TRMPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366HTS8-1#TRPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366HTS8-2#TRMPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366HTS8-2#TRPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366IDDB-1#TRMPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366IDDB-1#TRPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366IDDB-2#TRMPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366IDDB-2#TRPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366ITS8-1#TRMPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366ITS8-1#TRPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366ITS8-2#TRMPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366ITS8-2#TRPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366MPDDB-1#TRMPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366MPDDB-1#TRPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366MPDDB-2#TRMPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366MPDDB-2#TRPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366MPTS8-1#TRMPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366MPTS8-1#TRPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366MPTS8-2#TRMPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4366MPTS8-2#TRPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 7, 2021 - 21_0074 LTC4366 Datasheet Limit Change
		PCN21_0074_Form Material_Report Datasheet Specification Comparison
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

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Circuit Monitors 1
LT2940	PRODUCTION	Power and Current Monitor

Parts	Product Life Cycle	Description
LT4363	RECOMMENDED FOR NEW DESIGNS	High Voltage Surge Stopper with Current Limit
LTC4364	RECOMMENDED FOR NEW DESIGNS	Surge Stopper with Ideal Diode

Tools & Simulations

LTspice 1

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

Models for the following parts are available in LTspice:

LTC4366-1
LTC4366-2

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.

Evaluation Kits

28V, 5A MIL-STD-1275D Surge Stopper (Featuring LTC4366HTS8-2 and LT4363HS-2)

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Product Details

Demonstration circuit 2150A uses the LTC4366-2 and LT4363-2 surge stoppers to satisfy MIL-STD-1275D. This specification, created by the United States Department of Defense, sets down requirements of electrical systems powered from a military vehicle’s 28V power supply. DC2150A’s output voltage is limited to 44V when faced with MIL-STD-1275D’s onerous surge, spike, and ripple conditions. In most circumstances, satisfying MIL-STD-1275D is as simple as placing this circuit in front of a 44V tolerant device. The default version, DC2150A-C, provides a minimum of 4A to the output in all conditions except the ±7V ripple condition (14Vpeak-to-peak). During the ripple condition, DC2150A-C provides a minimum of 2.8A to the load. Exceeding 2.8A during the input ripple condition may cause DC2150A-C to timeout and shutoff in less than MIL-STD-1275D’s one minute ripple ride-through requirement.