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UC3853D - Texas Instruments

Description: Texas Instruments UC3853D, Power Factor Pre-Regulator Circuit, 82.5 kHz, 40 V, 8-Pin SOIC

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UC3853D - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D0008A height 1.75
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UC3853D - Texas Instruments  - 3D model - Small Outline Packages - D0008A height 1.75
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UC3853D Details

  • Manufacturer Part Number:

    UC3853D

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Country Of Origin:

    Mexico

  • 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:

    40 V

  • Input Voltage-Min:

    11.2 V

  • Input Voltage-Nom:

    16 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    0.5 A

  • Output Voltage-Max:

    17.5 V

  • Output Voltage-Min:

    12 V

  • Output Voltage-Nom:

    15 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    10 mA

  • Supply Voltage-Max (Vsup):

    40 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    115 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:

    3.9 mm

UC3853D Frequently Asked Questions (FAQs)

  • TI recommends a compact layout with the IC placed close to the input capacitors and the output inductor. The input and output pins should be routed away from each other to minimize coupling. A solid ground plane and a shielded layout can also help reduce EMI.
  • The inductor value depends on the output voltage, output current, and switching frequency. A good starting point is to use the inductor value calculation formula provided in the datasheet. Then, iterate on the value based on the actual performance of the converter.
  • The maximum junction temperature for the UC3853D is 150°C. However, it's recommended to keep the junction temperature below 125°C for reliable operation and to ensure a long lifespan.
  • Yes, the UC3853D is qualified for automotive and high-reliability applications. It meets the requirements of AEC-Q100 and is suitable for use in harsh environments.
  • Check the layout and routing for any potential issues. Ensure that the input and output capacitors are properly sized and placed. Verify that the feedback loop is properly compensated. If the issue persists, consult the TI application notes and technical support resources for further guidance.

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UC3853D 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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