LTC4372IDD#TRPBF

OR Controllers, Ideal Diodes Overview

The LTC4372IDD#TRPBF is a low quiescent current ideal diode controller manufactured by Analog Devices Inc. It drives an external N-channel MOSFET to replace power Schottky diodes, reducing forward voltage drop and reverse leakage current. The device operates within a wide input voltage range of 2.5V to 80V and provides reverse supply protection down to -28V. Key electrical parameters include a typical operating current of 5µA and a shutdown current of 0.5µA. It features fast reverse current turn-off capability within 1.5µs. The component is housed in a compact 3mm × 3mm DFN-8 package and is rated for industrial temperature operation from -40°C to +85°C.

OR Controllers, Ideal Diodes Feature Summary

• Replaces power Schottky diodes to significantly reduce power dissipation and heat generation
• Features ultra-low quiescent current consumption for extended battery life in portable applications
• Provides robust reverse supply protection up to -28V without requiring external TVS clamping
• Supports back-to-back MOSFET configurations for controlled inrush current and load switching

OR Controllers, Ideal Diodes Applications

• Automotive battery protection circuits
• Redundant power supply systems
• Portable instrumentation devices
• Solar powered energy harvesting systems
• Supply holdup applications

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix IDD#TRPBF against official Analog Devices documentation to confirm the DFN-8 package type and industrial temperature rating (-40°C to +85°C). Ensure the ordering part number matches the required tape-and-reel packaging format. Cross-reference the manufacturer's latest datasheet for any updates on RoHS compliance or pinout definitions before finalizing procurement specifications.

OR Controllers, Ideal Diodes Selection Notes

Select this component when designing high-voltage power paths requiring minimal static current draw. The wide 2.5V to 80V operating range accommodates various system rails including 24V and 48V automotive networks. The industrial temperature grade ensures reliability in harsh environments where commercial-grade parts may fail. Consider the external N-channel MOSFET selection carefully to match the controller's drive capabilities and thermal requirements.

OR Controllers, Ideal Diodes Part Context

The LTC4372 series includes variants such as CMS8, HMS8, and IMS8, distinguished primarily by their operating temperature ranges and package types. The IDD variant specifically utilizes a 3mm × 3mm DFN-8 package and meets industrial temperature standards. This distinguishes it from the MSOP-8 packaged versions while maintaining identical core electrical performance characteristics for ideal diode control functions.

OR Controllers, Ideal Diodes Replacement Considerations

Direct substitutes within the same family include LTC4372CMS8 and LTC4372HMS8, though these utilize different MSOP-8 packages rather than the DFN-8 form factor. Verify that any replacement maintains the required industrial temperature range and package footprint compatibility for PCB integration.