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LT3791IFE#TRPBF - Analog Devices

Description: LED Driver IC 1 Output DC DC Controller Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming 38-TSSOP-EP,–40°C to 125°C

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LT3791IFE#TRPBF - Analog Devices - PCB symbol
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PCB Footprints
LT3791IFE#TRPBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - FE Package 38-Lead Plastic TSSOP (4.4mm)
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LT3791IFE#TRPBF - Analog Devices - 3D model - Small Outline Packages - FE Package 38-Lead Plastic TSSOP (4.4mm)
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LT3791IFE#TRPBF Details

  • Manufacturer Part Number:

    LT3791IFE#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    LEAD FREE, PLASTIC, TSSOP-38

  • Pin Count:

    38

  • Manufacturer Package Code:

    05-08-1772

  • 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-G38

  • JESD-609 Code:

    e3

  • Length:

    9.7 mm

  • Moisture Sensitivity Level:

    1

  • Multiplexed Display Capability:

    NO

  • Number of Functions:

    1

  • Number of Segments:

    9

  • Number of Terminals:

    38

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • 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:

    4.7 V

  • Supply Voltage-Nom:

    12 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

LT3791IFE#TRPBF Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LT3791IFE is 100V, but it's recommended to keep it below 80V for reliable operation.
  • To ensure stability, make sure to follow the recommended layout and component selection guidelines, and add a compensation network as described in the datasheet. Also, ensure that the input and output capacitors are of high quality and meet the recommended specifications.
  • The maximum output current that the LT3791IFE can deliver is 1.2A, but it's recommended to derate the output current based on the input voltage, output voltage, and ambient temperature to ensure reliable operation.
  • The output voltage of the LT3791IFE can be programmed using the FB pin and an external resistor divider network. The datasheet provides a formula to calculate the required resistor values based on the desired output voltage.
  • The SS pin is used to program the soft-start time of the LT3791IFE. By connecting a capacitor from the SS pin to ground, you can control the rate at which the output voltage rises during startup, which helps to reduce inrush current and prevent output voltage overshoot.

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LT3791IFE#TRPBF 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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