LTC4380HMS-2#WTRPBF

Surge Suppression ICS Overview

The LTC4380HMS-2#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 features fixed gate clamp voltages selectable for 12V and 24V/28V systems, with a maximum input voltage rating of 72VDC. It operates within a temperature range of -40°C to +125°C and is qualified under AEC-Q100 standards. The component utilizes an MSOP-10 surface-mount package and draws a typical operating current of 20µA.

Surge Suppression ICS Feature Summary

• Provides overvoltage protection by clamping external N-channel MOSFET gate voltage during transient events such as automotive load dump.
• Includes internal overcurrent protection using a multiplier that generates TMR pin current proportional to VDS and ID to limit MOSFET stress.
• Supports reverse input protection by driving back-to-back MOSFETs via the GATE pin, eliminating Schottky diode voltage drop.

Surge Suppression ICS Applications

• Automotive electronics requiring protection against load dump and high voltage transients
• Avionics systems needing reliable power line surge suppression
• Industrial equipment protected from input voltage spikes

Surge Suppression ICS Procurement Notes

Verify the specific suffix #WTRPBF indicates tape and reel packaging when sourcing components. Confirm AEC-Q100 qualification status if automotive reliability is required. Ensure the fixed clamp version matches the target system voltage (12V or 24V/28V) rather than the adjustable variant. Cross-reference the MSOP-10 footprint with PCB design libraries before finalizing procurement.

Surge Suppression ICS Selection Notes

Select this part for applications requiring low standby current in always-on or battery-powered circuits. Choose the fixed clamp version only if the system voltage aligns strictly with 12V or 24V/28V specifications. Consider the MSOP-10 package size constraints during layout. Verify thermal performance requirements given the 125°C maximum operating temperature limit.

Surge Suppression ICS Part Context

This component belongs to the LTC4380 series of board mount surge protectors. It serves as a specialized solution for protecting sensitive downstream electronics from input power line disturbances. The series includes variants with different packages and clamp configurations to suit various industrial and automotive power distribution architectures.

Surge Suppression ICS Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Evaluate compatible parts within the same manufacturer's surge stopper portfolio based on voltage ratings and package compatibility.