LTC4418IUF#TRPBF

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LTC4418IUF#TRPBF

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IC CTRLR DUAL PWRPATH 20QFN

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Spezifikationen

Attribut Wert
Package Tape & Reel (TR),Cut Tape (CT)
Series PowerPath™
ProductStatus Active
Type Source Selector Switch
FETType P-Channel
Ratio-Input:Output 2:1
InternalSwitch(s) Yes
Current-Supply 52 µA
Voltage-Supply 40V
Applications Industrial
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 20-WFQFN Exposed Pad

Übersicht

Description

The LTC4418IUF#TRPBF is Linear Technology’s (Analog Devices) dual PowerPath/ideal-diode controller. It provides two low-loss ideal-diode paths to OR two input sources to a common load, using external N-channel MOSFETs. It delivers seamless switchover, reverse-current blocking, and protection suitable for redundant power rails, hot-swapping, and battery-backup applications.
Key points:
- Two independent channels for dual-source ORing
- Reverse-current protection and fast fault response
- Programmable current limit and standard protection features (fault shutdown, undervoltage/overcurrent protection)
- Typically drives external MOSFETs to implement the ideal diodes
Package note:
- IUF is the package code; #TRPBF denotes Tape-and-Reel Pb-free packaging.
In short, LTC4418IUF#TRPBF is the Pb-free, tape-and-reel version of the dual ideal-diode PowerPath controller for efficient dual-source power switching.

Features

Here are the key features of LTC4418IUF#TRPBF:
- Dual-channel power-path controller for OR-ing two supplies to a common load.
- True ideal-diode behavior using external N-channel MOSFETs for very low dropout.
- Automatic source selection: the higher input drives the load while preventing backfeed into the other input.
- Programmable current limit per channel via sense resistor; fast overcurrent protection.
- Robust protection: overvoltage and undervoltage on each input; overcurrent on each path; overtemperature protection.
- Soft-start on turn-on to limit inrush and reduce EMI.
- Enable/disable control for each input; fault/status handling (as provided by the device).
- 8-pin Pb-free package (IUF#TRPBF) suitable for compact designs.
Typical applications: dual-supply ORing, hot-swappable inputs, and power-path protection where low-loss, bidirectional isolation and protection are needed.

Pinout

- Pin count: 16 pins (16-lead package).
- Function: LTC4418IUF is a dual-input PowerPath/ideal-diode controller. It manages two input supplies to a common output by driving external MOSFETs to achieve ideal-diode ORing, with reverse-current protection and current-limit/overcurrent protection for each channel.

Manufacturer

Manufacturer: Analog Devices, Inc. (ADI).
What kind of company: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits; it acquired Linear Technology (the original LTC line) in 2017.

Application

LTC4418IUF#TRPBF is a two-channel ideal-diode power-path controller used for:
- Seamless, efficient OR-ing of two DC sources (redundant/backup supplies)
- Redundant power paths and UPS front-ends with non-disruptive switchover
- Renewable energy systems (solar/battery) needing backfeed protection and low-drop transitions
- Data center, telecom, and industrial equipment requiring hot-swappable, protected power delivery
- Automotive and industrial DC power systems needing reverse-current protection and load sharing
It enables MOSFET-based power routing with high efficiency and low loss compared with diodes.

Package

8-pin MSOP package (MSOP-8). Pb-free with Tape & Reel packaging (TRPBF).

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