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UCC28780D - Texas Instruments

Description: Adaptive zero voltage switching active-clamp flyback controller

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UCC28780D - Texas Instruments - PCB symbol
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UCC28780D - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - 16 lead soic
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UCC28780D - Texas Instruments - 3D model - Small Outline Packages - 16 lead soic
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UCC28780D Details

  • Manufacturer Part Number:

    UCC28780D

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Country Of Origin:

    Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Date Of Intro:

    2017-11-15

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    34 V

  • Input Voltage-Min:

    12 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    9.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.75 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    1000 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • 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

UCC28780D Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended PCB layout in the application note SLUA945, which includes guidelines for component placement, trace routing, and grounding to minimize EMI.
  • The transformer selection depends on the specific application requirements, such as output power, voltage, and frequency. TI provides a transformer selection guide in the application note SLUA944, which includes a step-by-step process for selecting the right transformer.
  • The maximum junction temperature of the UCC28780D is 150°C, as specified in the datasheet. However, it's recommended to keep the junction temperature below 125°C for reliable operation and to ensure a long lifespan.
  • No, the UCC28780D is designed for isolated topologies, such as flyback or forward converters. It's not suitable for non-isolated topologies, such as buck or boost converters.
  • The UCC28780D has a built-in OVP feature that can be enabled by connecting the OVP pin to a voltage divider network. The OVP threshold can be set by selecting the appropriate resistor values in the voltage divider network.

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UCC28780D 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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Part Image UCC28780DT Texas Instruments

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