LTC4354CDDB#TRM

OR Controllers, Ideal Diodes Overview

The LTC4354CDDB#TRM is a negative voltage diode-OR controller and monitor manufactured by Analog Devices Inc. It is designed to drive two external N-channel MOSFETs, effectively replacing Schottky diodes in power path applications. The device operates with an input voltage range of 2.5V to 60V and supports output currents up to 10A per channel. Key electrical parameters include a typical gate drive voltage of 12V and a quiescent current of 15µA. It features adjustable current limit thresholds and thermal foldback protection.

OR Controllers, Ideal Diodes Feature Summary

• Drives dual external N-channel MOSFETs for low-loss negative voltage OR-ing
• Integrates current limit monitoring with adjustable threshold control
• Provides thermal foldback protection to prevent overheating under fault conditions

OR Controllers, Ideal Diodes Applications

• Battery-powered systems requiring redundant power sources
• Motor control applications needing efficient power switching
• High-voltage power distribution networks

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix TRM indicates tape and reel packaging when ordering. Confirm the operating temperature range matches your environmental requirements. Ensure external MOSFET selection aligns with the device's gate drive capabilities and current limits. Check for RoHS compliance status relevant to your region's regulations before finalizing procurement.

OR Controllers, Ideal Diodes Selection Notes

Select this component for applications requiring high-efficiency negative voltage OR-ing where Schottky diode voltage drops are unacceptable. Consider the external MOSFET Rds(on) impact on overall system efficiency. Evaluate the need for current monitoring outputs if system diagnostics are required. Ensure the input voltage range covers the maximum expected supply variations.

OR Controllers, Ideal Diodes Part Context

This part belongs to the LTC4354 family of ideal diode controllers. It is distinct from positive voltage OR-ing solutions like the LTC4350 series. The DFN package offers a compact footprint suitable for space-constrained designs. It serves as a direct replacement for discrete diode-based OR-ing circuits in many industrial and automotive contexts.

OR Controllers, Ideal Diodes Replacement Considerations

LTC4354CDDB#TRPBF is a verified substitute offering identical functionality with different packaging quantity specifications.