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LT8391IFE#PBF - Analog Devices

Description: 60V Synchronous 4-Switch Buck-Boost LED Controller with Spread Spectrum

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LT8391IFE#PBF - Analog Devices - PCB symbol
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PCB Footprints
LT8391IFE#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - FE Package - 28-Lead Plastic TSSOP (4.4mm)_1
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LT8391IFE#PBF - Analog Devices - 3D model - Small Outline Packages - FE Package - 28-Lead Plastic TSSOP (4.4mm)_1
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LT8391IFE#PBF Details

  • Manufacturer Part Number:

    LT8391IFE#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TSSOP-28

  • Pin Count:

    28

  • Manufacturer Package Code:

    05-08-1663 (EB)

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Interface IC Type:

    LED DISPLAY DRIVER

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e3

  • Length:

    9.7 mm

  • Moisture Sensitivity Level:

    1

  • Multiplexed Display Capability:

    NO

  • Number of Functions:

    1

  • Number of Segments:

    7

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    OPEN-DRAIN

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • Package Equivalence Code:

    TSSOP28,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.2 mm

  • Supply Voltage-Max:

    60 V

  • Supply Voltage-Min:

    4 V

  • Supply Voltage-Nom:

    12 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

LT8391IFE#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT8391 involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the traces between the IC and the capacitors. A 4-layer PCB with a dedicated power plane and a dedicated ground plane is recommended. The datasheet provides a recommended PCB layout, but it's also a good idea to consult with experienced engineers or use PCB design tools to ensure optimal performance.
  • The selection of input and output capacitors for the LT8391 depends on the specific application requirements, such as the input voltage, output voltage, and output current. In general, low-ESR capacitors with high ripple current ratings are recommended. The datasheet provides guidelines for capacitor selection, but it's also important to consider factors such as capacitor size, cost, and availability. It's a good idea to consult with experienced engineers or use online capacitor selection tools to ensure the right capacitors are chosen.
  • The maximum ambient temperature range for the LT8391 is -40°C to 125°C. However, the device's performance and reliability may be affected at high temperatures, so it's important to ensure proper thermal management and heat sinking in high-temperature applications.
  • Yes, the LT8391 is suitable for high-reliability applications such as aerospace or automotive. The device is built with high-reliability materials and manufacturing processes, and it has undergone rigorous testing and qualification to ensure its performance and reliability in harsh environments. However, it's still important to consult with experienced engineers and follow proper design and testing procedures to ensure the device meets the specific requirements of the application.
  • Troubleshooting common issues with the LT8391 involves identifying the root cause of the problem and taking corrective action. Common issues such as oscillation or instability can be caused by factors such as poor PCB layout, incorrect component selection, or inadequate thermal management. The datasheet provides troubleshooting guidelines, and it's also a good idea to consult with experienced engineers or use online resources to identify and fix the problem.

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LT8391IFE#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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