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UC3914DW - Texas Instruments

Description: 5-35V Single, Hot-Swap IC Commercial Temperature Range

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UC3914DW - Texas Instruments - PCB symbol
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PCB Footprints
UC3914DW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW (R-PDSO-G18)
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UC3914DW - Texas Instruments - 3D model - Small Outline Packages - DW (R-PDSO-G18)
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UC3914DW Details

  • Manufacturer Part Number:

    UC3914DW

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    SOIC-18

  • Pin Count:

    18

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Adjustable Threshold:

    YES

  • Analog IC - Other Type:

    HOT SWAP CONTROLLER

  • JESD-30 Code:

    R-PDSO-G18

  • JESD-609 Code:

    e4

  • Length:

    11.55 mm

  • Moisture Sensitivity Level:

    2

  • Number of Channels:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    18

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    500 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP18,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.65 mm

  • Supply Current-Max (Isup):

    20 mA

  • Supply Voltage-Max (Vsup):

    35 V

  • Supply Voltage-Min (Vsup):

    5 V

  • Supply Voltage-Nom (Vsup):

    12 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    7.5 mm

UC3914DW Frequently Asked Questions (FAQs)

  • TI recommends a compact layout with short traces, and placing the IC close to the input capacitors. Additionally, a solid ground plane and a shielded enclosure can help reduce EMI and noise.
  • Ensure good thermal conduction by using a heat sink or a thermally conductive PCB material. Also, avoid operating the device near its maximum temperature rating (125°C) for extended periods.
  • Although the datasheet specifies a maximum input voltage of 40V, TI recommends limiting the input voltage to 30V to ensure reliable operation and prevent damage to the device.
  • Check the input and output voltage waveforms using an oscilloscope, and verify that the input capacitors are properly sized and placed. Also, ensure that the feedback loop is properly compensated and the output voltage is within the specified range.
  • While the UC3914DW is a reliable device, it is not specifically designed for high-reliability or aerospace applications. TI recommends using devices with a higher reliability rating, such as the UC3914DW-SP, which is designed for space and high-reliability applications.

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UC3914DW Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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