LTC4376HDHD#PBF

OR Controllers, Ideal Diodes Overview

The LTC4376HDHD#PBF is a 7 A ideal diode controller from Analog Devices, designed for power distribution and ORing applications. It integrates an internal N-channel MOSFET with a maximum on-resistance of 30 mΩ to replace Schottky diodes, reducing conduction losses and thermal dissipation. The device operates within a supply voltage range of 4 V to 40 V and supports reverse input protection up to -40 V. It features a fast turn-off time of 500 ns to minimize transient reverse current during fault conditions. The component is housed in a 16-lead DFN package and is rated for operation between -40°C and +125°C.

OR Controllers, Ideal Diodes Feature Summary

• Replaces power Schottky diodes to reduce system power consumption and PCB area
• Provides reverse input protection capable of withstanding negative voltages
• Ensures smooth current switching without oscillation under light load conditions
• Integrates low static current shutdown mode for battery conservation

OR Controllers, Ideal Diodes Applications

• Battery protection in portable devices
• Redundant power supply systems
• Automotive electronics
• Computer and server power distribution

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when sourcing. Confirm the HD grade temperature rating matches the application requirements against other variants like CD or ID. Check manufacturer documentation for moisture sensitivity levels and reflow soldering profiles prior to assembly. Ensure the design accounts for the 16-DFN thermal pad connection for proper heat dissipation.

OR Controllers, Ideal Diodes Selection Notes

Select this part for high-current applications requiring low forward voltage drop compared to standard diodes. Consider the 30 mΩ RDS(on) for efficiency calculations at 7 A loads. Evaluate the need for external back-to-back MOSFETs if bidirectional blocking is required beyond the internal protection limits. Compare operating temperature ranges across the LTC4376 family to ensure environmental compliance.

OR Controllers, Ideal Diodes Part Context

This component belongs to the LTC4376 series of ideal diode controllers manufactured by Analog Devices. It serves as a modern alternative to traditional diode-based ORing circuits, offering superior efficiency and thermal performance. The series includes various temperature grades and packaging options to suit different industrial and commercial deployment scenarios.

OR Controllers, Ideal Diodes Replacement Considerations

LTC4376CDHD#PBF and LTC4376IDHD#PBF are electrically similar variants within the same family, differing primarily in temperature range specifications.