LT4351CMS#TR

OR Controllers, Ideal Diodes Overview

The LT4351CMS#TR is a MOSFET Diode-OR Controller manufactured by Analog Devices Inc. It functions as an ideal diode controller to replace standard rectifiers in power supply OR-ing configurations, thereby reducing conduction losses and improving efficiency. The device operates within a voltage range of 4 VDC to 80 VDC and utilizes an MSOP-10 surface-mount package for board mounting applications.

OR Controllers, Ideal Diodes Feature Summary

• Replaces standard diodes in OR-ing topologies to minimize forward voltage drop and power dissipation
• Controls external N-channel MOSFETs to emulate ideal diode behavior with low on-resistance
• Supports redundant power supply architectures to enhance system reliability

OR Controllers, Ideal Diodes Applications

• Dual or multi-source redundant power supply systems
• High-efficiency DC-DC converter output stages
• Industrial and automotive power distribution networks

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix 'CMS' against the manufacturer's official datasheet to confirm pinout compatibility and thermal characteristics. Ensure the ordering code matches the exact tape-and-reel quantity specified in the current product documentation. Cross-reference the RoHS compliance status directly with the latest component specification sheet prior to integration.

OR Controllers, Ideal Diodes Selection Notes

Select this component when designing power paths that require lower conduction losses than traditional Schottky or silicon diodes can provide. Evaluate the external MOSFET selection carefully, as the controller relies on an external switch to handle the load current. Confirm that the input voltage range aligns with the system's operational requirements and that the MSOP-10 package fits the available PCB footprint constraints.

OR Controllers, Ideal Diodes Part Context

This part belongs to the LT4351 family of ideal diode controllers from Analog Devices. These devices are designed to manage power flow in redundant systems by actively controlling MOSFETs. The series provides a robust solution for maintaining power continuity while maximizing energy efficiency in critical infrastructure and electronic equipment.

OR Controllers, Ideal Diodes Replacement Considerations

LT4351HMS#TRPBF