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LT3922IUFD#TRPBF - Analog Devices

Description: LED Lighting Drivers 36V, 2A Monolithic Synchronous Step-Up LED Driver

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LT3922IUFD#TRPBF - Analog Devices - PCB symbol
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PCB Footprints
LT3922IUFD#TRPBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UFD (28-Lead QFN)
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3D Models
LT3922IUFD#TRPBF - Analog Devices - 3D model - Quad Flat No-Lead - UFD (28-Lead QFN)
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LT3922IUFD#TRPBF Details

  • Manufacturer Part Number:

    LT3922IUFD#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-28

  • Pin Count:

    28

  • Manufacturer Package Code:

    05-08-1712

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Data Input Mode:

    SERIAL

  • Input Characteristics:

    STANDARD

  • Interface IC Type:

    LED DISPLAY DRIVER

  • JESD-30 Code:

    R-PQCC-N28

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Multiplexed Display Capability:

    NO

  • Number of Functions:

    1

  • Number of Segments:

    2

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    CONSTANT-CURRENT

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC28,.16X.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 Current-Max:

    4 mA

  • Supply Voltage-Max:

    36 V

  • Supply Voltage-Min:

    2.8 V

  • Supply Voltage-Nom:

    12 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    4 mm

  • fmax-Min:

    1.88 MHz

LT3922IUFD#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT3922IUFD involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing trace lengths and widths to reduce parasitic inductance and capacitance. A 4-layer PCB with a dedicated power plane and a dedicated ground plane is recommended.
  • To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Additionally, ensure that the input and output capacitors meet the recommended specifications, and that the device is operated within its recommended operating conditions. A stability analysis using a tool like LTpowerCAD can also help identify potential issues.
  • The LT3922IUFD can operate in ambient temperatures up to 125°C, but the device's junction temperature (TJ) should not exceed 150°C. The device's thermal resistance (θJA) is 45°C/W, so the ambient temperature should be derated accordingly to ensure reliable operation.
  • Yes, the LT3922IUFD is qualified for automotive and high-reliability applications. It meets the requirements of the AEC-Q100 standard for automotive applications, and is also suitable for use in high-reliability industrial and medical applications.
  • To troubleshoot issues with the LT3922IUFD, start by verifying that the device is properly powered and that the input and output voltages are within the recommended specifications. Check for signs of overheating, and ensure that the device is operated within its recommended operating conditions. Use a scope or other diagnostic tools to identify any issues with the device's switching frequency, output voltage, or other parameters.

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LT3922IUFD#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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