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UCC28700DBVR - Texas Instruments

Description: AC/DC Converters Constant-Vltg,Const Crnt PWM

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UCC28700DBVR - Texas Instruments - PCB symbol
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PCB Footprints
UCC28700DBVR - Texas Instruments PCB footprint - SOT23 (6-Pin) - SOT23 (6-Pin) - DBV0006A
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UCC28700DBVR - Texas Instruments - 3D model - SOT23 (6-Pin) - DBV0006A
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UCC28700DBVR Details

  • Manufacturer Part Number:

    UCC28700DBVR

  • 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:

    450 V

  • Input Voltage-Min:

    21 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 Current-Max:

    5 A

  • Output Voltage-Max:

    54 V

  • Output Voltage-Min:

    3.3 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

UCC28700DBVR Frequently Asked Questions (FAQs)

  • A good PCB layout for the UCC28700DBVR 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 primary current. Consider factors like core material, winding resistance, and leakage inductance. TI provides guidelines for transformer selection in the datasheet and application notes.
  • The maximum ambient temperature for the UCC28700DBVR is 85°C, but this can be derated based on the specific application and thermal design. Ensure proper thermal management to maintain a safe junction temperature (TJ) below 150°C.
  • The UCC28700DBVR has a built-in overcurrent protection (OCP) feature. Set the OCP threshold by selecting the right resistor value for the ROC pin. You can also use an external OCP circuit or a current sense resistor to detect overcurrent conditions.
  • While the UCC28700DBVR is primarily designed for isolated topologies, it can be used in non-isolated configurations with some modifications. However, this may require additional components and design considerations to ensure safe operation.

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UCC28700DBVR 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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