LTC4359CDCB#TRMPBF

OR Controllers, Ideal Diodes Overview

The LTC4359CDCB#TRMPBF is a positive high voltage ideal diode controller designed to drive an external N-channel MOSFET, replacing Schottky diodes in power paths. It operates within a supply voltage range of 4V to 80V and supports reverse input protection down to -40V. The device features a low operating current of 150µA and a shutdown current of 9µA. It ensures oscillation-free smooth current transfer and includes fast turn-off capabilities to minimize reverse current transients during faults. The component is housed in a 6-pin DFN EP package measuring 2mm x 3mm.

OR Controllers, Ideal Diodes Feature Summary

• Drives external N-channel MOSFETs to replace Schottky diodes for reduced power dissipation
• Provides reverse input protection up to -40V to safeguard against fault conditions
• Ensures oscillation-free smooth switching with controlled forward voltage drop
• Offers low static current consumption in both active and shutdown modes

OR Controllers, Ideal Diodes Applications

• Automotive battery protection systems
• Redundant power supply ORing configurations
• Power hold-up circuits
• Telecommunications infrastructure power management
• Solar energy system power routing

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix TRMPBF indicates tape and reel packaging from Analog Devices Inc. Confirm the CDCB designation corresponds to the commercial temperature grade and DFN-6 package variant. Ensure compatibility with external N-channel MOSFET selection based on the controller's drive characteristics. Cross-reference the datasheet for thermal performance requirements under expected load conditions.

OR Controllers, Ideal Diodes Selection Notes

Select this controller when designing power paths requiring high voltage tolerance up to 80V and robust reverse protection. It is suitable for applications prioritizing efficiency gains over traditional diode solutions by utilizing external MOSFETs. Consider the 6-pin DFN footprint for space-constrained designs. Evaluate the need for the specific commercial temperature grade versus automotive variants if operating in harsh environments.

OR Controllers, Ideal Diodes Part Context

This component belongs to the LTC4359 family of ideal diode controllers manufactured by Analog Devices Inc. It serves as a specialized PMIC solution for managing power flow in multi-source systems. The device integrates control logic to optimize the performance of external power switches, enhancing system reliability and efficiency compared to passive rectification methods.

OR Controllers, Ideal Diodes Replacement Considerations

LTC4359CDCB#PBF (Same function, different packaging)

OR Controllers, Ideal Diodes FAQ

How does the LTC4359 handle reverse current during a power failure?

The device employs a fast turn-off mechanism that minimizes reverse current transients, effectively blocking reverse flow when the primary power source fails or shorts.

What type of external switch does the LTC4359 control?

It is designed to drive an external N-channel MOSFET to act as an ideal diode, replacing standard Schottky diodes for improved efficiency.