LTC4357IDCB#TRMPBF

OR Controllers, Ideal Diodes Overview

The LTC4357IDCB#TRMPBF is a positive high voltage ideal diode controller manufactured by Analog Devices Inc. It drives an external N-channel MOSFET to replace Schottky diodes, reducing power consumption and heat dissipation. The device operates within a wide input voltage range of 9V to 80V. Key electrical parameters include a maximum output voltage of 80V, a quiescent current of 80uA, and an input current of 350uA. The component supports a working supply voltage of 9V to 80V with a typical operating supply current of 500uA. It features a 0.5µs turn-off time to limit peak fault current and prevents reverse DC current flow.

OR Controllers, Ideal Diodes Feature Summary

• Drives external N-channel MOSFETs to function as ideal diodes, significantly lowering forward voltage drop compared to standard Schottky diodes.
• Provides fast 0.5µs turn-off capability to minimize reverse current during fault conditions or short circuits.
• Ensures smooth switchover between power sources without oscillation, maintaining stable current delivery in redundant systems.
• Operates reliably across a wide voltage range from 9V to 80V, suitable for demanding industrial and telecom environments.

OR Controllers, Ideal Diodes Applications

• N+1 redundant power supplies
• High availability systems
• AdvancedTCA systems
• Telecom infrastructure
• Automotive systems

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix #TRMPBF confirms the tape-and-reel packaging format required for automated assembly processes. Confirm that the DFN-6 package dimensions align with the designated PCB footprint. Ensure the component grade matches the intended operational temperature requirements for the target application environment.

OR Controllers, Ideal Diodes Selection Notes

Select this controller when replacing Schottky diodes in high-voltage applications to improve efficiency. It is appropriate for designs requiring precise control over MOSFET gate drive timing. Consider the external MOSFET selection carefully to match the controller's drive capabilities and thermal requirements for optimal performance.

OR Controllers, Ideal Diodes Part Context

This component belongs to the LTC4357 series of ideal diode controllers from Analog Devices. It is designed specifically for high-voltage OR-ing applications where minimizing power loss is critical. The device integrates protection features to safeguard against reverse currents and fault conditions in complex power distribution networks.

OR Controllers, Ideal Diodes Replacement Considerations

LTC4357HDCB#TRPBF