LTC4380CDD-3#TRPBF

Surge Suppression ICS Overview

The LTC4380CDD-3#TRPBF 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 an adjustable gate clamp for systems up to 72VDC and provides overcurrent protection via an internal multiplier that limits operating time based on MOSFET stress. It operates within a voltage range of 4V to 72V and draws a typical operating current of 8µA. The component is housed in a DFN-10 surface-mount package and supports operation temperatures from -40°C to +125°C.

Surge Suppression ICS Feature Summary

• Provides overvoltage protection by clamping the gate voltage of an external N-channel MOSFET during transient events such as automotive load dump.
• Integrates overcurrent protection using an internal multiplier to limit operating time in accordance with MOSFET stress limits.
• Supports reverse input protection by driving back-to-back MOSFETs, eliminating the voltage drop associated with Schottky diode solutions.
• Features an accurate ON pin comparator for monitoring input supply undervoltage conditions.

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 utilizing always-on or battery-powered applications

Surge Suppression ICS Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm the CDD-3 designation corresponds to the adjustable gate clamp variant suitable for voltages up to 72V. Ensure compatibility with the intended external N-channel MOSFET selection for optimal clamping performance. Check manufacturer documentation for any product change notifications affecting specifications or manufacturing location.

Surge Suppression ICS Selection Notes

Select this component for applications requiring minimal standby current due to its 8µA operating specification. Choose the adjustable clamp version for system voltages exceeding standard 12V or 24V/28V fixed options. Ensure the external MOSFET selected can withstand the clamped gate voltage and the calculated stress limits defined by the internal multiplier. Verify the DFN-10 package dimensions fit the target PCB layout constraints.

Surge Suppression ICS Part Context

The LTC4380 series belongs to Analog Devices' family of board mount surge protectors designed for robust power line protection. This specific model utilizes a DFN-10 package to provide a compact solution for space-constrained designs. It serves as a critical interface between the power source and sensitive downstream loads, ensuring system integrity during electrical disturbances.

Surge Suppression ICS Replacement Considerations

LTC4380HDD-3#TRPBF