LTC4417HUF#TRPBF

OR Controllers, Ideal Diodes Overview

The LTC4417HUF#TRPBF is a PowerPath controller manufactured by Analog Devices Inc., designed for supply prioritization in systems with multiple power sources. It selects the highest priority valid input from three available sources to drive a common output. The device operates within a wide voltage range of 2.5 V to 36 V and includes -42 V battery reverse protection. Key electrical characteristics include a low quiescent current of less than 1 μA when below VOUT, and an operating current of 28 μA. It features fast non-overlapping switching to prevent cross-conduction and incorporates a 6 V gate driver clamp for external MOSFET protection.

OR Controllers, Ideal Diodes Feature Summary

• Selects the highest priority valid input source among three inputs based on fixed pin configuration.
• Prevents reverse and cross-conduction currents using fast non-overlapping switching circuitry.
• Provides adjustable over-voltage and under-voltage hysteresis with a 256 ms validity window.
• Includes a 6 V clamped gate driver to protect external P-channel MOSFETs.

OR Controllers, Ideal Diodes Applications

• Industrial handheld instruments requiring redundant power supplies
• High-availability server and computer peripheral systems
• Battery backup systems with primary AC/DC input

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging rather than tube packaging. Confirm the HUF variant corresponds to the QFN package type. Ensure the component meets RoHS compliance requirements for the target assembly process. Check for any obsolescence notices or limited availability status directly from Analog Devices before finalizing procurement plans.

OR Controllers, Ideal Diodes Selection Notes

Choose this component when system design requires automatic switchover between three distinct power sources without manual intervention. It is suitable for applications demanding minimal standby current consumption and robust protection against reverse polarity conditions. Consider the thermal performance of the QFN package if high load currents are expected from the selected source.

OR Controllers, Ideal Diodes Part Context

This part belongs to the LTC4417 family of PowerPath controllers. It functions as a supply prioritizer, managing power distribution in complex electronic environments. The HUF designation specifies the commercial temperature grade and the 4 mm x 4 mm QFN package format, distinguishing it from SSOP variants within the same functional series.

OR Controllers, Ideal Diodes Replacement Considerations

Public confirmed substitute part numbers include other variants within the LTC4417 family such as LTC4417CUF#PBF, LTC4417IUF#PBF, LTC4417IGN#PBF, and LTC4417HGN#PBF. These alternatives share identical functional specifications but may differ in package type or temperature rating.