LTC4368IDD-1#PBF

Surge Suppression ICS Overview

The LTC4368IDD-1#PBF is a board-mount surge protector manufactured by Analog Devices Inc., designed for robust power line protection. It functions as an undervoltage (UV), overvoltage (OV), and reverse protection controller featuring a bidirectional circuit breaker. The device operates within a voltage range of 2.5 V to 60 V and draws a maximum quiescent current of 30 uA. It is housed in a 10-DFN package with dimensions of 3 mm x 3 mm. The component supports surface mount technology and is rated for operation between -40°C and +85°C.

Surge Suppression ICS Feature Summary

• Provides comprehensive protection against input voltage anomalies including overvoltage, undervoltage, and negative supply conditions.
• Integrates a bidirectional circuit breaker to manage overcurrent faults in both forward and reverse directions.
• Controls external back-to-back MOSFETs to isolate the load from the input source during fault conditions.

Surge Suppression ICS Applications

• Automotive electronic systems
• Industrial equipment power inputs
• Energy storage system interfaces

Surge Suppression ICS Procurement Notes

Verify the specific suffix #PBF indicates tube packaging rather than tape and reel when ordering. Confirm availability status as supply may be limited or restricted. Ensure the DFN-10 footprint matches the PCB layout requirements. Cross-reference the datasheet for exact pinout configurations to prevent installation errors during integration.

Surge Suppression ICS Selection Notes

Select this component for applications requiring precise control of external N-channel MOSFETs for high-voltage isolation. The bidirectional breaker capability makes it suitable for systems where current flow direction may vary. Consider the 30 uA quiescent current for low-power standby requirements. Verify that the 60 V maximum rating aligns with the system's peak voltage specifications.

Surge Suppression ICS Part Context

This part belongs to the LTC4368 family of Surge Stoppers, which are designed to protect sensitive electronics from power line disturbances. The IDD variant specifically denotes the 10-DFN package style. These controllers are engineered to replace traditional fuses and diodes, offering adjustable thresholds and faster response times for modern power management architectures.

Surge Suppression ICS Replacement Considerations

LTC4368HDD-1#PBF: Different package (DFN) but similar functionality.

Surge Suppression ICS FAQ

How does the LTC4368 handle reverse polarity?

It acts as a reverse protection controller by controlling the gate voltage of external back-to-back MOSFETs, disconnecting the load if the input voltage becomes negative.

What is the purpose of the bidirectional circuit breaker?

It protects against overcurrent conditions in both forward and reverse directions, ensuring circuit integrity regardless of current flow orientation.