LTC4372CMS8#PBF

OR Controllers, Ideal Diodes Overview

The LTC4372CMS8#PBF is a low quiescent current ideal diode controller manufactured by Analog Devices Inc. It drives an external N-channel MOSFET to emulate an ideal diode, significantly reducing power loss compared to Schottky diodes. The device operates within a voltage range of 2.5 V to 80 V and features a typical operating supply current of 5 μA with a shutdown current of 0.5 μA. It provides reverse power protection down to -28 V and achieves reverse current turn-off in less than 1.5 μs. The component is housed in an 8-lead MSOP package and is rated for commercial temperature operation from 0°C to +70°C.

OR Controllers, Ideal Diodes Feature Summary

• Drives external N-channel MOSFETs to replace power Schottky diodes, minimizing conduction losses and heat generation.
• Features ultra-low static current consumption of 5 μA during operation and 0.5 μA in shutdown mode for extended battery life.
• Provides rapid reverse current blocking within 1.5 μs to protect against backflow and transient events.
• Supports high-voltage inputs up to 80 V with integrated reverse power protection capability.

OR Controllers, Ideal Diodes Applications

• N+1 redundant power systems
• Automotive battery protection circuits
• Uninterruptible Power Supply (UPS) hold-up circuits
• Solar panel bypass applications

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix CMS8 corresponds to the commercial temperature grade (0°C to +70°C) required for your design environment. Confirm that the #PBF designation indicates lead-free compliance and RoHS adherence before finalizing procurement orders. Ensure the external MOSFET selection matches the voltage and current ratings supported by this controller.

OR Controllers, Ideal Diodes Selection Notes

Select this component when low standby current is critical for battery-operated or always-on backup power applications. The wide input voltage range accommodates various system rails including 12V, 24V, and 48V configurations. Consider the thermal performance of the external MOSFET as the controller relies on it for power handling rather than internal switching elements.

OR Controllers, Ideal Diodes Part Context

This part belongs to the LTC4372 series of ideal diode controllers from Analog Devices. The series includes variants with different temperature ratings, such as the IMS8 for industrial use and HMS8 for automotive/high-temperature environments. All variants share identical electrical characteristics but differ in their specified operating temperature ranges to suit diverse application conditions.

OR Controllers, Ideal Diodes Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should evaluate other ideal diode controllers from Analog Devices or competitors based on voltage range, quiescent current, and package compatibility if direct substitution is necessary.