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UC3875DWPG4 - Texas Instruments

Description: TEXAS INSTRUMENTS - UC3875DWPG4 - Resonant PWM Controller, 11V-20V supply, 1MHz, 5.08V/500mA out, SOIC-28

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UC3875DWPG4 - Texas Instruments - PCB symbol
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PCB Footprints
UC3875DWPG4 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW (R-PDSO-G28)
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UC3875DWPG4 - Texas Instruments - 3D model - Small Outline Packages - DW (R-PDSO-G28)
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UC3875DWPG4 Details

  • Manufacturer Part Number:

    UC3875DWPG4

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    GREEN, PLASTIC, SOIC-28

  • Pin Count:

    28

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    CAN ALSO BE CONFIGURED IN CURRENT MODE; PWM CONTROL TECHNIQUE ALSO POSSIBLE

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT/VOLTAGE-MODE

  • Control Technique:

    RESONANT CONTROL

  • Input Voltage-Max:

    20 V

  • Input Voltage-Min:

    11 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e4

  • Length:

    17.9 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    3 A

  • Output Voltage-Max:

    5.08 V

  • Output Voltage-Min:

    4.92 V

  • Output Voltage-Nom:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP28,.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):

    30 mA

  • Supply Voltage-Nom (Vsup):

    12 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    PUSH-PULL

  • Switching Frequency-Max:

    1000 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

UC3875DWPG4 Frequently Asked Questions (FAQs)

  • The recommended layout and placement for the UC3875DWPG4 can be found in the Texas Instruments application note 'UC3875 Layout and Placement Guidelines' (SLUA271). It provides detailed guidance on component placement, PCB layout, and thermal management to ensure optimal performance and reliability.
  • The selection of the right transformer for the UC3875DWPG4 depends on several factors such as input voltage, output voltage, power rating, and operating frequency. Texas Instruments provides a transformer selection guide (SLUA273) that helps engineers choose the appropriate transformer for their design. Additionally, the UC3875 datasheet provides guidelines for transformer design and selection.
  • The UC3875DWPG4 has a high power density and requires proper thermal management to ensure reliable operation. Engineers should consider the thermal resistance of the package, PCB thermal design, and heat sink selection. Texas Instruments provides thermal management guidelines in the datasheet and application notes (SLUA272) to help engineers design a thermally efficient system.
  • The UC3875DWPG4 has a built-in overcurrent protection feature that can be enabled by connecting the OC pin to a resistor and capacitor network. The datasheet provides a detailed description of the overcurrent protection circuit and the calculation of the required resistor and capacitor values. Additionally, Texas Instruments provides application notes (SLUA274) that provide guidance on implementing overcurrent protection in various applications.
  • The UC3875DWPG4 is a high-frequency switching regulator that can generate electromagnetic interference (EMI). Engineers should consider EMI and electromagnetic compatibility (EMC) in their design to ensure compliance with regulatory requirements. Texas Instruments provides EMI and EMC guidelines in the datasheet and application notes (SLUA275) to help engineers design a compliant system.

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UC3875DWPG4 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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