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UC2854DW - Texas Instruments

Description: Texas Instruments UC2854DW, Power Factor Pre-Regulator Circuit, 118 kHz, 35 V, 16-Pin SOIC

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UC2854DW - Texas Instruments PCB footprint - Other - Other - SOIC127P1030X265-16N
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UC2854DW - Texas Instruments  - 3D model - Other - SOIC127P1030X265-16N
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UC2854DW Details

  • Manufacturer Part Number:

    UC2854DW

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Part Package Code:

    SOIC

  • Pin Count:

    16

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    POWER FACTOR CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    30 V

  • Input Voltage-Min:

    15 V

  • Input Voltage-Nom:

    18 V

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    10.285 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °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):

    10 mA

  • Supply Voltage-Max (Vsup):

    30 V

  • Supply Voltage-Nom (Vsup):

    18 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    200 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • 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:

    7.49 mm

UC2854DW Frequently Asked Questions (FAQs)

  • It is recommended to follow a star-grounding configuration, with the IC's ground pin connected to a central grounding point. Keep the input and output traces separate and away from each other, and use a ground plane to reduce noise and EMI.
  • To ensure stability, make sure to follow the recommended component values and layout guidelines. Also, ensure that the output filter components are properly selected and placed to prevent oscillations. A minimum ESR of 0.1 ohms for the output capacitor is recommended.
  • The UC2854DW can handle input voltages up to 40V, but it's recommended to operate within the specified range of 15V to 30V for optimal performance and reliability.
  • The output voltage can be adjusted by changing the ratio of the resistors R1 and R2 in the feedback network. The output voltage is determined by the formula Vout = Vref * (1 + R2/R1), where Vref is the internal reference voltage.
  • The soft-start pin is used to control the output voltage ramp-up time during startup. By connecting a capacitor to the SS pin, the output voltage can be slowly ramped up to prevent inrush currents and reduce stress on the output components.

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UC2854DW 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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