LTC4368IMS-1#PBF

Surge Suppression ICS Overview

The LTC4368IMS-1#PBF is a board mount surge protector manufactured by Analog Devices Inc. It functions as a 100V undervoltage, overvoltage, and reverse protection controller featuring a bidirectional circuit breaker. The device operates within a voltage range of 2.5 V to 60 V and has a maximum quiescent current of 30 uA. It is designed for surface mount installation in an MSOP-10 package measuring 3 mm x 3 mm with a height of 0.86 mm. The component supports an operating temperature range from -40°C to +85°C.

Surge Suppression ICS Feature Summary

• Provides bidirectional circuit breaker functionality for overcurrent protection in both directions.
• Controls gate voltage of external back-to-back MOSFETs to isolate loads during faults.
• Offers adjustable undervoltage and overvoltage protection thresholds via resistive dividers.

Surge Suppression ICS Applications

• Automotive systems
• Industrial equipment
• Energy storage systems
• Portable instrumentation

Surge Suppression ICS Procurement Notes

Verify the specific suffix #PBF indicates tube packaging rather than tape and reel options like #TRPBF. Confirm the IMS-1 variant matches the required pinout and protection threshold specifications for the target design. Ensure the MSOP-10 footprint aligns with the PCB layout constraints. Cross-reference the datasheet revision history for any recent manufacturing changes or updates.

Surge Suppression ICS Selection Notes

Select this component when bidirectional current flow requires protection against surges, reverse polarity, and voltage excursions up to 100V. The low static current makes it suitable for battery-powered applications. Use external N-channel MOSFETs to handle higher load currents than the internal limits allow. Adjust UV/OV thresholds using external resistor networks connected to the respective control pins.

Surge Suppression ICS Part Context

This part belongs to the LTC4368 family of Surge Stoppers, which integrate protection controllers with bidirectional circuit breakers. The series includes variants with different packages such as DFN and MSOP, and suffixes indicating different protection levels or packaging types. These devices are engineered to replace traditional fuses and diodes in modern power distribution architectures.

Surge Suppression ICS Replacement Considerations

LTC4368IMS-1#TRPBF (Tape and Reel version)

Surge Suppression ICS FAQ

How does the bidirectional circuit breaker function?

The device monitors current flow in both directions and disconnects the load from the input supply if overcurrent conditions are detected, regardless of polarity.

What determines the overvoltage and undervoltage thresholds?

The OV and UV protection levels are adjusted externally using resistive dividers connected to the OV and UV pins, respectively.