LTC4380CDD-1#TRPBF

Surge Suppression ICS Overview

The LTC4380CDD-1#TRPBF is a low quiescent current surge stopper manufactured by Analog Devices Inc. It protects loads from transient high-voltage damage, such as automotive load dump events, by clamping the gate voltage of an external N-channel MOSFET. The device features a fixed internal gate clamp voltage suitable for 12V and 24V/28V systems. It provides overcurrent protection via an internal multiplier that limits operating time during fault conditions. The component operates within a wide voltage range of 4 V to 72 V and includes reverse input protection capabilities.

Surge Suppression ICS Feature Summary

• Clamps external N-channel MOSFET gate voltage to limit output voltage during overvoltage events
• Provides overcurrent protection with adjustable failure timer based on MOSFET stress
• Drives back-to-back MOSFETs for reverse input protection without Schottki diode voltage drop
• Features low quiescent current operation suitable for always-on battery-powered applications

Surge Suppression ICS Applications

• Automotive, avionics, and industrial surge protection
• Hot swap and hot insertion power management
• High-side switching for battery-powered systems
• Intrinsically safe applications

Surge Suppression ICS Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when sourcing. Confirm the CDD package designation matches the required DFN-8 footprint. Ensure the -1 suffix corresponds to the fixed gate clamp voltage configuration intended for your system voltage level. Cross-reference the manufacturer part number against official Analog Devices documentation to confirm authenticity and revision status before procurement.

Surge Suppression ICS Selection Notes

Select this component when fixed gate clamp voltage is preferred over adjustable options for standard 12V or 24V/28V architectures. Consider the DFN-8 surface-mount package for space-constrained designs requiring low thermal mass. Evaluate the need for integrated overcurrent limiting with adjustable failure timers to protect downstream MOSFETs from excessive stress during fault conditions compared to discrete protection solutions.

Surge Suppression ICS Part Context

This part belongs to the LTC4380 family of low quiescent current surge stoppers designed for protecting loads from transient high-voltage damage. The series supports various packages including DFN and MSOP, catering to different board space requirements. The family distinguishes between fixed clamp voltage versions for standard systems and adjustable versions for higher voltage applications up to 72 V.

Surge Suppression ICS Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.