LTC4418IUF#TRPBF

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LTC4418IUF#TRPBF

IC CTRLR DUAL PWRPATH 20QFN

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規格

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

概述

Description

LTC4418IUF#TRPBF is Linear Technology’s (Analog Devices) dual high-side ideal-diode/power-path controller. It lets you automatically OR two DC power sources to a single load with very low voltage drop and protection against reverse current/backfeeding. Each channel drives an external MOSFET to form an ideal diode, with features such as programmable current limit, soft-start, and fault indication. Typical uses include redundant power paths, battery backup, and hot-swap protection for sensitive electronics. The IUF suffix denotes the package type, and #TRPBF indicates a Pb-free, tape-and-reel shipment.

Features

LTC4418IUF#TRPBF features (concise):
- Dual PowerPath controllers with reverse-current protection
- Two independent channels (A and B) for seamless OR-ing of two sources
- External N-channel MOSFETs form high-side ideal-diode paths
- Per-channel current limit and fast short-circuit protection
- Overvoltage and undervoltage lockout with automatic recovery
- Thermal shutdown protection
- Status/diagnostic indicators for channel/fault conditions
- Low quiescent current for standby/battery-powered use
- Small 8-pin package; available in tape-and-reel (TRPBF) format
Note: For exact electrical specs (currents, voltages, timing), refer to the LTC4418 datasheet.

Package

8-pin MSOP (3×3 mm) package, Pb-free, Tape & Reel.

Pinout

- Pin count: 8 pins (8‑lead package, e.g., MSOP-8/LTC IUF variant).
- Function: Dual power-path/ideal-diode controller. It drives two external N-channel MOSFETs to provide low-loss, reverse-current-protected OR-ing of two input supplies to a common load (i.e., two ideal diodes with current limit and hot-swap-style protection).

Manufacturer

Manufacturer: Analog Devices, Inc. (ADI). Formerly Linear Technology; now part of ADI since its 2017 acquisition.
Company type: A multinational American semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing integrated circuits.

Application

Application areas:
- Automatic power-path selection between two DC sources with reverse-current protection.
- Redundant/hot-swappable power rails for telecom, data-center, and server equipment.
- Battery backup and solar/battery systems requiring seamless switchover and current limiting.
- Portable/embedded devices needing high-efficiency ideal-diode OR-ing to maximize efficiency.

Equivalent

Direct equivalents do not exist. Closest cross-references within the Linear Technology/Analog Devices family are LTC4414 and LTC4416 (dual-input ideal-diode power-path controllers). For a guaranteed cross, consult distributor cross-references against the LTC4418IUF#TRPBF datasheet (footprint and electrical specs) or contact the supplier.

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