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LT8311IFE#PBF - Analog Devices

Description: Synchronous Rectifier Controller with Opto-Coupler Driver for Forward Converters

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LT8311IFE#PBF Details

  • Manufacturer Part Number:

    LT8311IFE#PBF

  • 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

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    30 V

  • Input Voltage-Min:

    3.7 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:

    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

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    300 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

LT8311IFE#PBF Frequently Asked Questions (FAQs)

  • The LT8311 can handle input voltages up to 80V, but it's recommended to limit the input voltage to 60V for optimal performance and reliability.
  • To optimize the layout, keep the input and output capacitors close to the IC, use a solid ground plane, and minimize the length of the input and output traces. Also, ensure that the feedback resistors are placed close to the IC and connected directly to the pins.
  • A low-ESR ceramic capacitor (X5R or X7R dielectric) with a voltage rating of at least 2x the maximum input voltage is recommended. A 10uF to 22uF capacitor is a good starting point.
  • Choose an inductor with a saturation current rating above the peak inductor current, and a DC resistance (DCR) that is as low as possible. A shielded inductor is recommended to minimize EMI. The inductor value should be between 1uH to 10uH, depending on the output voltage and current requirements.
  • The LT8311 can deliver up to 1.5A of output current, but the actual output current capability depends on the input voltage, output voltage, and thermal conditions.

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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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