LTC4380IDD-4#TRPBF

Surge Suppression ICS Overview

The LTC4380IDD-4#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 during overvoltage events, such as automotive load dump. The device features a fixed internal gate clamp voltage of 50V, suitable for 24V and 28V systems. It operates within a wide input voltage range of 4V to 72VDC and draws only 12µA of operating current. The component is housed in a compact 10-lead DFN package measuring 3mm x 3mm with a height of 0.75mm. It supports operation temperatures from -40°C to +85°C.

Surge Suppression ICS Feature Summary

• Provides overvoltage protection by clamping external N-channel MOSFET gate voltage during transient events
• Features a fixed 50V internal gate clamp voltage optimized for 24V/28V system architectures
• Enables reverse input protection up to -60V through back-to-back MOSFET drive capability
• Includes adjustable fault timer and UVLO comparator for precise power monitoring and shutdown control

Surge Suppression ICS Applications

• Automotive and avionics surge protection
• Industrial circuit board mount surge suppression
• Hot-swap and live-insertion applications
• High-voltage side switching for battery-powered systems

Surge Suppression ICS Procurement Notes

Verify the specific suffix IDD-4 against official Analog Devices documentation to confirm the fixed 50V gate clamp configuration. Ensure the TRPBF designation matches the required reel packaging format for surface mount assembly. Cross-reference the datasheet revision history to validate compliance with current RoHS standards and material declarations before finalizing procurement specifications.

Surge Suppression ICS Selection Notes

Select this component when a fixed 50V gate clamp is required for 24V or 28V systems rather than the adjustable version. Choose the DFN-10 package for space-constrained designs requiring a 3mm x 3mm footprint. Consider the 12µA quiescent current for always-on battery applications. Verify that the external MOSFET selection aligns with the device's stress acceleration and fault timer capabilities.

Surge Suppression ICS Part Context

This part belongs to the LTC4380 series of low static current surge stoppers designed for harsh environments. It complements other variants like the LTC4380IDD-2 (adjustable clamp) and MSOP packages. The series addresses critical needs in automotive, industrial, and avionics sectors where robust protection against high-voltage transients and efficient power management are essential for system reliability.

Surge Suppression ICS Replacement Considerations

LTC4380IDD-2#TRPBF offers similar functionality but features an adjustable gate clamp voltage instead of the fixed 50V setting found in the IDD-4 variant.