RT1985N-A

OR Controllers, Ideal Diodes Overview

The RT1985N-A is an N+1 ORing controller designed for ideal diode protection switching applications. It supports an input supply voltage range of 3.4V to 23V and delivers a maximum output current of 8A. The device operates within a temperature range of -40°C to 125°C and features a typical supply current of 650 µA. It utilizes an N-channel FET configuration and is housed in a 12-VDFN Type V (3x3) package with a power dissipation rating of 1.85 W.

OR Controllers, Ideal Diodes Feature Summary

• Implements N+1 ORing control logic for redundant power bus architectures
• Functions as an ideal diode protection switch using external N-channel MOSFETs
• Supports high-side or low-side measurement configurations for system monitoring

OR Controllers, Ideal Diodes Applications

• General purpose power distribution systems
• Redundant power supply bus protection
• Ideal diode bridge replacement circuits

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific ordering suffix matches the required package type and tape/reel specifications. Confirm that the component status remains active before finalizing procurement plans. Ensure compatibility with the target operating temperature range and voltage requirements for the intended application environment.

OR Controllers, Ideal Diodes Selection Notes

Select this controller when designing redundant power architectures requiring precise load sharing and reverse current blocking. Evaluate the external N-channel MOSFET selection to ensure it meets the 8A current limit and voltage ratings. Consider the 12-VDFN package constraints for thermal management and PCB layout space availability.

OR Controllers, Ideal Diodes Part Context

This component belongs to the family of OR controllers and ideal diodes manufactured by Richtek USA Inc. It serves as a specialized power management integrated circuit (PMIC) solution for protecting power buses from reverse currents and ensuring seamless redundancy in critical electronic systems.

OR Controllers, Ideal Diodes Replacement Considerations

The RT1987N-A is a documented substitute part number within the same product family, offering similar N+1 ORing controller functionality and identical 12-VDFN Type V (3x3) packaging.