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LTC4274AIUHF-4#PBF - Analog Devices

Description: LINEAR TECHNOLOGY - LTC4274AIUHF-4#PBF - PSE, CNTRL, 90W, 1MHZ, 38QFN

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LTC4274AIUHF-4#PBF - Analog Devices - PCB symbol
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PCB Footprints
LTC4274AIUHF-4#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UHF Package 38-Lead Plastic QFN (5mm × 7mm)
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3D Models
LTC4274AIUHF-4#PBF - Analog Devices - 3D model - Quad Flat No-Lead - UHF Package 38-Lead Plastic QFN (5mm × 7mm)
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LTC4274AIUHF-4#PBF Details

  • Manufacturer Part Number:

    LTC4274AIUHF-4#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-38

  • Pin Count:

    38

  • Manufacturer Package Code:

    05-08-1701

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • JESD-30 Code:

    R-PQCC-N38

  • JESD-609 Code:

    e3

  • Length:

    7 mm

  • Moisture Sensitivity Level:

    1

  • Number of Terminals:

    38

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC38,.27X.2,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Supply Voltage-Max:

    57 V

  • Supply Voltage-Min:

    45 V

  • Supply Voltage-Nom:

    54 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    5 mm

  • uPs/uCs/Peripheral ICs Type:

    PSE CONTROLLER

LTC4274AIUHF-4#PBF Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output capacitors close to the IC, and use short, wide traces for the high-current paths.
  • Use a thermal pad or thermal interface material to improve heat transfer between the IC and the PCB. Ensure good airflow around the IC, and consider using a heat sink or thermal management system for high-power applications.
  • The current limit affects the output voltage during overload conditions. If the output current exceeds the current limit, the output voltage will droop or collapse to prevent damage to the IC. Ensure that the output voltage is monitored and controlled to prevent this condition.
  • Use an external OVP circuit, such as a voltage supervisor or a dedicated OVP IC, to monitor the output voltage and shut down the LTC4274 if it exceeds a predetermined threshold.
  • Use a shielded enclosure, keep the input and output cables short, and use EMI filters or common-mode chokes to reduce electromagnetic interference. Ensure that the PCB layout and component placement minimize radiated emissions.

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LTC4274AIUHF-4#PBF Overview

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About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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