LTC4372IDD#PBF

OR Controllers, Ideal Diodes Overview

The LTC4372IDD#PBF is a positive high voltage ideal diode controller manufactured by Analog Devices Inc., designed to drive an external N-channel MOSFET in place of a Schottky diode. It operates within a wide input voltage range of 2.5V to 80V and features a low quiescent current of 5µA during operation, reducing to 0.5µA in shutdown mode. The device provides reverse supply protection down to –28V and ensures fast reverse current turn-off within 1.5µs. Packaged in a compact 3mm × 3mm DFN-8 format, it supports back-to-back MOSFET configurations for inrush control and load switching applications.

OR Controllers, Ideal Diodes Feature Summary

• Replaces power Schottky diodes to significantly reduce forward conduction losses and heat generation.
• Features ultra-low static current consumption with 5µA operating and 0.5µA shutdown currents.
• Provides robust reverse supply protection capable of handling voltages down to –28V without external clamping.
• Supports driving back-to-back external N-channel MOSFETs for effective inrush current limiting and load switching.

OR Controllers, Ideal Diodes Applications

• Automotive battery protection circuits
• Redundant power supply systems (N+1 OR-ing)
• Solar powered systems and energy harvesting applications
• Portable instrumentation and supply holdup circuits

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix IDD against official Analog Devices documentation to confirm the package type and temperature rating. Ensure compatibility with external N-channel MOSFET selection for optimal performance. Confirm RoHS compliance status through manufacturer datasheets prior to integration into final designs.

OR Controllers, Ideal Diodes Selection Notes

Select this component when designing high-voltage power paths requiring minimal standby current. The wide 2.5V to 80V range suits various industrial and automotive rails. Consider the DFN-8 package for space-constrained PCB layouts where thermal management and low profile are critical design constraints.

OR Controllers, Ideal Diodes Part Context

This part belongs to the LTC4372 family of ideal diode controllers from Analog Devices. It shares core electrical characteristics with MSOP-8 variants but utilizes a distinct 3mm × 3mm DFN-8 package. The family focuses on replacing traditional diode-based power path solutions with active MOSFET control for higher efficiency.

OR Controllers, Ideal Diodes Replacement Considerations

LTC4372HMS8#PBF

OR Controllers, Ideal Diodes FAQ

What is the maximum reverse voltage protection capability?

The device provides reverse supply protection down to –28V, eliminating the need for external TVS diodes for standard reverse polarity scenarios.

How does the device handle reverse current flow?

It actively turns off the external N-channel MOSFET within 1.5µs upon detecting reverse current, ensuring near-zero leakage and protecting downstream components.