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UCC28911D - Texas Instruments

Description: 700V Flyback Switcher with Constant-Voltage Constant-Current and Primary-side Regulation

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UCC28911D - Texas Instruments - PCB symbol
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PCB Footprints
UCC28911D - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D0007A SOIC - 1.75 mm max height
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3D Models
UCC28911D - Texas Instruments - 3D model - Small Outline Packages - D0007A SOIC - 1.75 mm max height
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UCC28911D Details

  • Manufacturer Part Number:

    UCC28911D

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT/VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    450 V

  • Input Voltage-Min:

    10 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDSO-G7

  • JESD-609 Code:

    e4

  • Length:

    4.905 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    7

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.7 A

  • Output Voltage-Max:

    18 V

  • Output Voltage-Min:

    3.3 V

  • 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:

    115 kHz

  • 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

  • Total Power Output-Max:

    10 W

  • Width:

    3.895 mm

UCC28911D Frequently Asked Questions (FAQs)

  • TI recommends a 4-layer PCB with a solid ground plane, and placing the UCC28911D close to the input capacitors and output inductors to minimize loop areas and reduce EMI. Additionally, a shielded inductor and a common-mode choke can be used to further reduce EMI.
  • The compensation network can be optimized by using the TI-provided compensation calculator tool, which takes into account the specific application requirements and component values. Additionally, the datasheet provides a general guideline for compensation network design.
  • The maximum allowed voltage on the VCC pin is 15V. To protect it from overvoltage, a voltage regulator or a zener diode can be used to clamp the voltage to a safe level. Additionally, a TVS diode can be used to protect against voltage spikes and transients.
  • The SOA can be ensured by monitoring the input voltage, output current, and junction temperature. The datasheet provides a SOA graph that can be used to determine the safe operating region. Additionally, thermal monitoring and overcurrent protection can be implemented to prevent damage to the device.
  • TI recommends using a low-ESR ceramic or film capacitor with a value of 10uF to 22uF, depending on the specific application requirements. The capacitor should be placed close to the UCC28911D to minimize parasitic inductance.

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UCC28911D 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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