LTC4380
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LTC4380

Low Quiescent Current Surge Stopper

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LTspice LTC4380 - Hot Swap Controllers Download 2.43 KB
Part Models 64
1ku List Price Starting From $2.99
Features
  • 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
Additional Details
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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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file View Data Sheet (Rev.C)
Documentation View All Documentation
LTspice LTC4380 - Hot Swap Controllers Download 2.43 KB
Part Models 64
1ku List Price Starting From $2.99
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LTC4380

Documentation

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Data Sheet

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UPDATED 06/22/2017
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LTC4380: Low Quiescent Current Surge Stopper Data Sheet (Rev.C)

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UPDATED 08/14/2016
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LTC4380: 低静止電流サージ・ストッパー データシート

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User Guide

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UPDATED 05/05/2016
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DC2178A - Demo Manual redirect icon

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Product Information

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UPDATED 01/10/2017
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LTC4380 ISO16750-2 ISO7637-2 Test Report redirect icon

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Reliability Data

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UPDATED 03/26/2018
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R547 Reliability Data redirect icon

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Technical Articles

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UPDATED 05/25/2017
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Low Quiescent Current Surge Stopper: Robust Automotive Supply Protection for ISO 7637-2 and ISO 16750-2 Compliance redirect icon

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UPDATED 01/01/2017
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Low Quiescent Current Surge Stopper: Robust Automotive Supply Protection for ISO 7637-2 and ISO 16750-2 Compliance redirect icon

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UPDATED 04/25/2024
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When Overvoltages Last a Long Time, Use Switching Surge Stoppers redirect icon

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UPDATED 04/25/2024
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過電圧状態が長時間続く場合に用いるスイッチング・サージ・ストッパ redirect icon

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Documentation

Technical Documents 7
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Data Sheet 1

LTC4380: Low Quiescent Current Surge Stopper Data Sheet (Rev.C)

Reliability Data 1

R547 Reliability Data

User Guide 1

DC2178A - Demo Manual

Technical Articles 3

Low Quiescent Current Surge Stopper: Robust Automotive Supply Protection for ISO 7637-2 and ISO 16750-2 Compliance
Low Quiescent Current Surge Stopper: Robust Automotive Supply Protection for ISO 7637-2 and ISO 16750-2 Compliance
When Overvoltages Last a Long Time, Use Switching Surge Stoppers

Product Information 1

LTC4380 ISO16750-2 ISO7637-2 Test Report

Solutions Bulletin & Brochure 1

Micropower Surge Stopper Overvoltage & Overcurrent Protection with Extended Battery Life

Product Selector Card 2

Surge Stoppers
Hot Swap Controllers

Rarely Asked Question Page 2

How to Choose the Right Protection for Your Circuit
Parasitic Oscillation in Hot Swaps

Video

2

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Video

2017-09-18

Low Iq Surge Stopper for High Reliability Current Sensitive Applications

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Video

2017-09-18

Surge Stoppers Video Product Brief

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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
LTC4380CDD-1#PBF 10-Lead DFN (3mm x 3mm w/ EP) external-link
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LTC4380HMS-1#PBF 10-Lead MSOP external-link
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LTC4380IDD-1#PBF 10-Lead DFN (3mm x 3mm w/ EP) external-link
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LTC4380IMS-1#PBF 10-Lead MSOP external-link
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