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LTC4381ADKE-4#TRPBF - Analog Devices

Description: Low Quiescent Current eFuse with Surge Protection

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LTC4381ADKE-4#TRPBF - Analog Devices - PCB symbol
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PCB Footprints
LTC4381ADKE-4#TRPBF - Analog Devices PCB footprint - Small Outline No-lead - Small Outline No-lead - DKE 32-Lead Plastic DFN (7mm × 5mm)
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LTC4381ADKE-4#TRPBF - Analog Devices - 3D model - Small Outline No-lead - DKE 32-Lead Plastic DFN (7mm × 5mm)
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LTC4381ADKE-4#TRPBF Details

  • Manufacturer Part Number:

    LTC4381ADKE-4#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    LFCSP:LEADFRM CHIP SCALE

  • Package Description:

    DFN-32

  • Pin Count:

    32

  • Manufacturer Package Code:

    LFCSP:LEADFRM CHIP SCALE

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    2021-04-15

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    8.5

  • Additional Feature:

    AUTOMATIC RETRY

  • Adjustable Threshold:

    YES

  • Analog IC - Other Type:

    INPUT FAULT PROTECTION CONTROLLER

  • JESD-30 Code:

    R-PDSO-N32

  • JESD-609 Code:

    e3

  • Length:

    7 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    32

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Equivalence Code:

    solcc32,.2,16

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Supply Current-Max (Isup):

    0.03 mA

  • Supply Voltage-Max (Vsup):

    72 V

  • Supply Voltage-Min (Vsup):

    4 V

  • Supply Voltage-Nom (Vsup):

    12 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.4 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    5 mm

LTC4381ADKE-4#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout is crucial for the LTC4381's performance. Analog Devices recommends a 4-layer board with a solid ground plane, and to keep the input and output traces short and separate. A dedicated ground plane under the IC is also recommended. Additionally, use a common mode choke or a ferrite bead to filter the input voltage.
  • The input capacitor selection depends on the input voltage range, ripple current, and ESR requirements. A low-ESR ceramic capacitor (X5R or X7R dielectric) with a value between 1uF to 10uF is recommended. The capacitor should be able to handle the maximum input voltage and ripple current. It's also important to consider the capacitor's temperature rating and derating factors.
  • The LTC4381 is rated for an ambient temperature range of -40°C to 125°C. However, the maximum junction temperature (TJ) is 150°C. It's essential to ensure that the device's thermal dissipation is adequate to prevent overheating, especially in high-power applications.
  • Yes, the LTC4381 is suitable for high-reliability and automotive applications. It's AEC-Q100 qualified and meets the requirements for automotive systems. However, it's essential to follow the recommended design guidelines, testing, and validation procedures to ensure the device meets the specific application requirements.
  • Common issues with the LTC4381 can be caused by poor PCB layout, inadequate input decoupling, or incorrect component selection. To troubleshoot, start by verifying the PCB layout and input decoupling. Check the input voltage ripple, output voltage regulation, and current sense resistor values. Use an oscilloscope to monitor the input and output waveforms, and consult the datasheet and application notes for guidance.

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LTC4381ADKE-4#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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