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UCC28703DBVR - Texas Instruments

Description: Constant-Voltage, Constant-Current PWM With Primary-Side Regulation

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PCB Footprints
UCC28703DBVR - Texas Instruments PCB footprint - SOT23 (6-Pin) - SOT23 (6-Pin) - DBV0006A SOT-23
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3D Models
UCC28703DBVR - Texas Instruments  - 3D model - SOT23 (6-Pin) - DBV0006A SOT-23
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UCC28703DBVR Details

  • Manufacturer Part Number:

    UCC28703DBVR

  • 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

UCC28703DBVR Frequently Asked Questions (FAQs)

  • A good PCB layout for the UCC28703DBVR 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 suitable turns ratio, core material, and winding configuration to match the UCC28703DBVR's operating frequency and power requirements. TI provides guidelines for transformer selection in the datasheet and application notes.
  • The maximum ambient temperature for the UCC28703DBVR is 85°C, but it can be derated for higher temperatures. Consult the datasheet for thermal derating curves and guidelines for thermal management.
  • The UCC28703DBVR 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 overcurrent protection.
  • No, the UCC28703DBVR 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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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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Part Image UCC28703DBVT Texas Instruments

Switching Controller, Current-mode, 132kHz Switching Freq-Max, PDSO6