LTC4380HMS-1#WTRPBF

Surge Suppression ICS Overview

The LTC4380HMS-1#WTRPBF is a low quiescent current surge stopper manufactured by Analog Devices Inc. It protects loads from high voltage transients by clamping the gate voltage of an external N-channel MOSFET. The device operates within a voltage range of 4 VDC to 72 VDC and features a fixed gate clamp voltage suitable for 12V systems. It utilizes an MSOP-10 package with SMD/SMT termination. The component has a maximum operating current of 20 uA and functions reliably between -40°C and +125°C. It is AEC-Q100 qualified for automotive applications.

Surge Suppression ICS Feature Summary

• Provides overvoltage protection by clamping the gate voltage of an external N-channel MOSFET to limit output voltage during transients such as load dump.
• Features an internal multiplier that generates a TMR pin current proportional to VDS and ID, limiting operating time in overcurrent and overvoltage conditions according to MOSFET stress limits.
• Enables reverse input protection by driving back-to-back MOSFETs via the GATE pin, eliminating the voltage drop and dissipation associated with Schottky diode solutions.
• Includes an accurate ON pin comparator that monitors the input supply for undervoltage (UV) conditions.

Surge Suppression ICS Applications

• Automotive systems requiring protection against load dump events
• Avionics power distribution networks
• Industrial equipment sensitive to high voltage transients

Surge Suppression ICS Procurement Notes

Verify the specific suffix #WTRPBF indicates tape and reel packaging when sourcing. Confirm AEC-Q100 qualification status for automotive compliance requirements. Ensure the fixed 12V gate clamp setting matches the target system voltage. Check for availability constraints as this part may have limited stock or restricted supply channels.

Surge Suppression ICS Selection Notes

Select this component for applications requiring low quiescent current operation in always-on or battery-powered systems. Choose the fixed 12V clamp version specifically for 12V automotive architectures. Consider the MSOP-10 package size for space-constrained PCB layouts. Verify compatibility with external N-channel MOSFETs for optimal surge handling performance.

Surge Suppression ICS Part Context

The LTC4380 series comprises low quiescent current surge stoppers designed for robust transient protection. This specific variant belongs to the LTC4380 family, offering adjustable or fixed gate clamp options. It serves as a critical interface between power sources and sensitive downstream loads in harsh electrical environments.

Surge Suppression ICS Replacement Considerations

LTC4380HMS-1#WPBF