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UC3854BDW - Texas Instruments

Description: UC3854BDWG4, Power Factor Pre-Regulator Circuit, 115kHz, 10 to 20V, 16-Pin, SOIC

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UC3854BDW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DWE0016A
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UC3854BDW - Texas Instruments  - 3D model - Small Outline Packages - DWE0016A
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UC3854BDW Details

  • Manufacturer Part Number:

    UC3854BDW

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Date Of Intro:

    1992-12-01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    POWER FACTOR CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    20 V

  • Input Voltage-Min:

    10 V

  • Input Voltage-Nom:

    18 V

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    10.3 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    1.5 A

  • Output Voltage-Max:

    7.6 V

  • Output Voltage-Min:

    7.4 V

  • Output Voltage-Nom:

    7.5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.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):

    12 mA

  • Supply Voltage-Max (Vsup):

    20 V

  • Supply Voltage-Nom (Vsup):

    18 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    200 kHz

  • 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

UC3854BDW Frequently Asked Questions (FAQs)

  • TI recommends a 4-layer PCB with a solid ground plane, and placing the IC close to the input capacitors and output inductors. Additionally, keep the high-current paths short and use a common ground point for the input and output returns.
  • Ensure that the compensation components (R1, R2, C1, and C2) are properly selected and placed close to the IC. Also, verify that the output voltage is within the specified range and the input voltage is within the recommended operating range.
  • The maximum allowable voltage on the VCC pin is 15V, but it's recommended to keep it below 12V for reliable operation.
  • Yes, the UC3854BDW can be used in a synchronous rectification topology, but it requires additional external components and careful design to ensure proper operation.
  • The minimum input voltage is typically 8V, and the maximum input voltage is 40V. However, the recommended operating range is 12V to 35V. The input voltage range can be calculated based on the specific application requirements and the output voltage.

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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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