LTC4372CDD#PBF

OR Controllers, Ideal Diodes Overview

The LTC4372CDD#PBF 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 dissipation. The device features a low quiescent current of 5µA operating and 0.5µA shutdown. It supports a wide operating voltage range from 2.5V to 80V and provides reverse supply protection down to –28V. The component is housed in a compact 3mm × 3mm DFN-8 package.

OR Controllers, Ideal Diodes Feature Summary

• Replaces power Schottky diodes to reduce system power dissipation
• Ultra-low static current consumption for battery efficiency
• Fast reverse current turn-off capability within 1.5µs
• Supports back-to-back MOSFET configurations for load switching

OR Controllers, Ideal Diodes Applications

• Automotive battery protection
• Redundant power supplies
• Portable instrumentation
• Solar powered systems
• Energy harvesting applications

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix CDD against official Analog Devices documentation to confirm the DFN-8 package type and commercial temperature grade. Ensure compatibility with external N-channel MOSFET selection for the target voltage and current requirements. Confirm RoHS compliance status as indicated in the manufacturer's datasheet before finalizing procurement specifications.

OR Controllers, Ideal Diodes Selection Notes

Select this component when designing high-voltage power paths requiring minimal standby current. The wide input range accommodates various bus voltages up to 80V. Consider the thermal performance of the external MOSFET and the PCB layout constraints associated with the small DFN-8 footprint during the design phase.

OR Controllers, Ideal Diodes Part Context

This part belongs to the LTC4372 family of ideal diode controllers. It serves as a critical interface between power sources and loads, ensuring unidirectional current flow without the voltage drop penalties of traditional diodes. The series includes variants with different packages and temperature ratings to suit diverse industrial and automotive environments.

OR Controllers, Ideal Diodes Replacement Considerations

LTC4372HMS8

OR Controllers, Ideal Diodes FAQ

What is the maximum reverse voltage protection?

The device provides reverse supply protection down to –28V.

How does the controller handle light loads?

It controls the forward voltage drop across the external MOSFET to ensure current delivery or transfer even at light loads.