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LT4294HDD#PBF - Analog Devices

Description: IEEE 802.3af/at/bt Powered Device (PD) Controller n Supports Up to 71.3W PDs n 5-Event Classification Sensing n Superior Surge Protection (100V Absolute Maximum) n Wide Junction Temperature Range (–40°C to 125°C) n Overtemperature Protection n Integrated Signature Resistor n External Hot Swap N-Channel MOSFET for Lowest Power Dissipation and Highest System Efficiency n Configurable Aux Power Support as Low as 9V n Easy Migration Between LTPoE++® PDs and IEEE 802.3bt PDs n Pin Compatible with LT4

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LT4294HDD#PBF - Analog Devices - PCB symbol
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PCB Footprints
LT4294HDD#PBF - Analog Devices PCB footprint - Small Outline No-lead - Small Outline No-lead - DD Package 10-Lead Plastic DFN (3mm × 3mm) (Reference LTC DWG # 05-08-1699 Rev C)...
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LT4294HDD#PBF - Analog Devices - 3D model - Small Outline No-lead - DD Package 10-Lead Plastic DFN (3mm × 3mm) (Reference LTC DWG # 05-08-1699 Rev C)...
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LT4294HDD#PBF Details

  • Manufacturer Part Number:

    LT4294HDD#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    DFN-10

  • Pin Count:

    10

  • Manufacturer Package Code:

    05-08-1699

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Analog IC - Other Type:

    ANALOG CIRCUIT

  • JESD-30 Code:

    S-PDSO-N10

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    10

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Supply Voltage-Max (Vsup):

    60 V

  • Supply Voltage-Min (Vsup):

    8 V

  • Supply Voltage-Nom (Vsup):

    17.5 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3 mm

LT4294HDD#PBF Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output traces short and away from each other to minimize noise and coupling.
  • Use a high-quality, low-ESR capacitor (e.g., 10uF ceramic) as close as possible to the VIN pin. Add additional decoupling capacitors (e.g., 100nF ceramic) near the VOUT pin. Ensure the power supply is stable and has low ripple.
  • The LT4294HDD can deliver up to 2A of output current, but this may vary depending on the input voltage, output voltage, and ambient temperature. Consult the datasheet for specific current limits and thermal derating.
  • The output voltage can be adjusted by changing the resistor ratio of R1 and R2 in the feedback network. Use the formula in the datasheet to calculate the desired resistor values for the desired output voltage.
  • The EN (enable) pin is an active-high input that allows the user to turn the regulator on or off. When EN is high, the regulator is enabled, and when EN is low, the regulator is disabled and draws minimal quiescent current.

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LT4294HDD#PBF 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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