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LT8391HFE#PBF - Analog Devices

Description: LED Driver IC 1 Output DC DC Controller Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming 28-TSSOP-EP

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LT8391HFE#PBF - Analog Devices - PCB symbol
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PCB Footprints
LT8391HFE#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - FE Package 28-Lead Plastic TSSOP (4.4mm)_2025
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3D Models
LT8391HFE#PBF - Analog Devices - 3D model - Small Outline Packages - FE Package 28-Lead Plastic TSSOP (4.4mm)_2025
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LT8391HFE#PBF Details

  • Manufacturer Part Number:

    LT8391HFE#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:

    10

  • 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:

    150 °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

LT8391HFE#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT8391HFE 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. Additionally, it's essential to follow the layout guidelines provided in the datasheet and application notes.
  • The selection of input and output capacitors for the LT8391HFE depends on the specific application requirements. In general, low-ESR capacitors with high ripple current ratings are recommended. The input capacitor should be able to handle the input voltage and current, while the output capacitor should be able to handle the output voltage and current. The datasheet provides guidelines for capacitor selection, and it's essential to follow them.
  • The LT8391HFE can operate in ambient temperatures ranging from -40°C to 125°C. However, the maximum junction temperature (TJ) should not exceed 150°C. It's essential to ensure that the device is properly cooled, especially in high-power applications, to prevent overheating and ensure reliable operation.
  • Yes, the LT8391HFE is suitable for high-reliability and automotive applications. It's manufactured using a high-reliability process, and it's qualified to the AEC-Q100 standard for automotive applications. However, it's essential to follow the recommended design and layout guidelines, and to ensure that the device is properly tested and validated for the specific application.
  • Troubleshooting issues with the LT8391HFE involves identifying the root cause of the problem. Common issues include incorrect component selection, poor PCB layout, or inadequate cooling. It's essential to follow the troubleshooting guidelines provided in the datasheet and application notes, and to use tools such as oscilloscopes and thermal cameras to diagnose the issue.

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LT8391HFE#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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