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UCC28703DBVT - Texas Instruments

Description: Texas Instruments UCC28703DBVT, PWM Controller, 140 kHz, 6-Pin, SOT-23

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UCC28703DBVT - Texas Instruments - PCB symbol
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PCB Footprints
UCC28703DBVT - Texas Instruments PCB footprint - SOT23 (6-Pin) - SOT23 (6-Pin) - DBV (R-PDSO-G6)
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UCC28703DBVT - Texas Instruments - 3D model - SOT23 (6-Pin) - DBV (R-PDSO-G6)
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UCC28703DBVT Details

  • Manufacturer Part Number:

    UCC28703DBVT

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    RESONANT CONTROL

  • Input Voltage-Max:

    35 V

  • Input Voltage-Min:

    9 V

  • Input Voltage-Nom:

    25 V

  • JESD-30 Code:

    R-PDSO-G6

  • JESD-609 Code:

    e4

  • Length:

    2.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    6

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -20 °C

  • Output Voltage-Nom:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LSSOP

  • Package Equivalence Code:

    TSOP6,.11,37

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.45 mm

  • Supply Current-Max (Isup):

    2.65 mA

  • Supply Voltage-Nom (Vsup):

    25 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    132 kHz

  • Temperature Grade:

    OTHER

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.95 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    1.6 mm

UCC28703DBVT Frequently Asked Questions (FAQs)

  • A good PCB layout for the UCC28703DBVT involves keeping the high-frequency switching nodes (e.g., SW and VIN) away from sensitive analog nodes, using a solid ground plane, and minimizing loop areas. TI provides a recommended layout in the datasheet and application notes.
  • Choose a transformer with a turns ratio that matches the desired output voltage, and ensure it can handle the maximum output current. Consider factors like core material, wire size, and insulation to ensure reliable operation. TI provides guidelines for transformer selection in the datasheet and application notes.
  • The maximum ambient temperature for the UCC28703DBVT is 85°C, but it can be derated for higher temperatures. Consult the datasheet for thermal derating curves and ensure proper thermal management in your design.
  • The UCC28703DBVT has a built-in overcurrent protection feature. Set the OCSET pin to the desired current limit, and the IC will automatically shut down if the current exceeds this limit. Consult the datasheet for more information on implementing overcurrent protection.
  • No, the UCC28703DBVT is designed for isolated topologies, such as flyback converters. It is not suitable for non-isolated topologies like buck or boost converters.

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UCC28703DBVT 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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