LTC4372HMS8#PBF

OR Controllers, Ideal Diodes Overview

The LTC4372HMS8#PBF is a low quiescent current ideal diode controller manufactured by Analog Devices Inc. It operates within a voltage range of 2.5V to 80V and utilizes an 8-lead MSOP package. The device features a typical operating current of 5μA and a shutdown current of 0.5μA. It provides reverse power protection down to -28V and achieves reverse current turn-off in 1.5μs or less. Designed for industrial and automotive environments, it supports a minimum operating temperature of -40°C and a maximum of +125°C.

OR Controllers, Ideal Diodes Feature Summary

• Drives external N-channel MOSFETs to replace Schottky diodes, significantly reducing conduction losses and heat generation.
• Enables rapid reverse current blocking within 1.5μs to protect against transient faults and backflow.
• Supports back-to-back MOSFET configurations for integrated surge current control and load switching applications.

OR Controllers, Ideal Diodes Applications

• Redundant power systems (N+1 OR-ing)
• Automotive battery protection circuits
• Solar panel bypass and energy harvesting
• Portable instrumentation power management

OR Controllers, Ideal Diodes Procurement Notes

Verify component authenticity through authorized channels due to limited supply status. Confirm the specific H-suffix designation ensures compliance with extended temperature requirements (-40°C to +125°C) for your target environment. Cross-reference datasheet specifications against legacy designs to ensure compatibility with existing PCB layouts and thermal constraints.

OR Controllers, Ideal Diodes Selection Notes

Select this model when high-voltage operation up to 80V is required alongside ultra-low standby consumption. The H-suffix variant is mandatory for applications exceeding standard commercial temperature limits. Ensure the design accommodates external N-channel MOSFETs for optimal efficiency compared to discrete diode solutions.

OR Controllers, Ideal Diodes Part Context

This component belongs to the LTC4372 series of ideal diode controllers from Analog Devices. It shares core electrical characteristics with the CMS8 and IMS8 variants, differing primarily in temperature rating. The H-suffix specifically targets automotive and harsh industrial sectors requiring robust performance under extreme thermal conditions.

OR Controllers, Ideal Diodes Replacement Considerations

LTC4372IMS8#PBF offers identical functionality with a lower maximum temperature limit of 85°C. LTC4372CMS8#PBF provides the same electrical performance but is restricted to commercial temperatures (0°C to 70°C). Verify thermal requirements before substituting these variants.

OR Controllers, Ideal Diodes FAQ

What is the maximum reverse voltage the device can withstand?

The LTC4372HMS8#PBF provides reverse power protection down to -28V without requiring external TVS input clamping.

How does the device handle reverse current during fault conditions?

It actively turns off the external MOSFET within 1.5μs to minimize reverse current transients and protect the power source.