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LTC3894HFE#TRPBF - Analog Devices

Description: Switching Controllers 150V Low IQ Step-Down DC/DC Controller with 100% Duty Cycle Capability

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LTC3894HFE#TRPBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - 20-Lead Plastic TSSOP-ren1
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LTC3894HFE#TRPBF Details

  • Manufacturer Part Number:

    LTC3894HFE#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TSSOP-20/16

  • Pin Count:

    16

  • Manufacturer Package Code:

    05-08-1924

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Date Of Intro:

    2019-07-22

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    BURST MODE

  • Input Voltage-Max:

    150 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e3

  • Length:

    6.5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    60 V

  • Output Voltage-Min:

    0.8 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

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

  • Seated Height-Max:

    1.2 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    850 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Width:

    4.4 mm

LTC3894HFE#TRPBF Frequently Asked Questions (FAQs)

  • The maximum junction temperature of the LTC3894HFE is 125°C. However, it's recommended to operate the device at a junction temperature below 115°C for optimal performance and reliability.
  • To optimize the layout for thermal performance, it's recommended to place the device on a thermally conductive PCB material, use a large copper area for the exposed pad, and minimize the thermal resistance between the device and the heat sink. Additionally, ensure that the power traces are wide and short to reduce thermal impedance.
  • The recommended input capacitor value for the LTC3894HFE is 10uF to 22uF, with a voltage rating of at least 2x the maximum input voltage. A higher value capacitor can be used for improved input ripple rejection, but it may increase the startup time and inrush current.
  • The inductor value selection depends on the input voltage, output voltage, and switching frequency. A general guideline is to choose an inductor with a value between 1uH to 10uH, with a saturation current rating above the peak current. It's recommended to use the inductor selection tool provided by Analog Devices or consult the application note for more information.
  • The maximum output current capability of the LTC3894HFE is 20A. However, the actual output current capability may be limited by the thermal performance, input voltage, and output voltage. It's recommended to consult the datasheet and application note for more information on output current capability and thermal derating.

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LTC3894HFE#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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