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UCC3889DTR - Texas Instruments

Description: TEXAS INSTRUMENTS - UCC3889DTR - IC, OFF-LINE POWER SUPPLY CTRL, 8-SOIC

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UCC3889DTR - Texas Instruments - PCB symbol
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UCC3889DTR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D0008A
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UCC3889DTR - Texas Instruments - 3D model - Small Outline Packages - D0008A
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UCC3889DTR Details

  • Manufacturer Part Number:

    UCC3889DTR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    8

  • Country Of Origin:

    Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Input Voltage-Max:

    9.3 V

  • Input Voltage-Min:

    6.6 V

  • Input Voltage-Nom:

    9 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    0.2 A

  • Output Voltage-Nom:

    12 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Voltage-Max (Vsup):

    9.3 V

  • Supply Voltage-Min (Vsup):

    8.6 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    250 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    COMMERCIAL

  • 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

UCC3889DTR Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended PCB layout in the UCC3889DTR datasheet, but it's also recommended to follow general high-frequency PCB design guidelines, such as keeping the power traces short and wide, using a solid ground plane, and minimizing the loop area of the current sense traces.
  • The RSENSE value depends on the maximum current you expect in your application and the desired current sense accuracy. A smaller RSENSE value provides better accuracy but increases power loss, while a larger RSENSE value reduces power loss but decreases accuracy. TI provides a current sense resistor selection guide in the datasheet.
  • The UCC3889DTR has an operating temperature range of -40°C to 125°C, but the maximum junction temperature (TJ) should not exceed 150°C. It's essential to ensure proper thermal design and heat sinking to maintain a safe operating temperature.
  • The UCC3889DTR has a built-in OCP feature that can be enabled by connecting the OCP pin to a resistor divider network. The OCP threshold is set by the voltage on the OCP pin, and the device will shut down if the current exceeds the set threshold.
  • The recommended input capacitor value is 10uF to 22uF, and it's recommended to use a low-ESR ceramic capacitor (X5R or X7R dielectric) to minimize voltage ripple and ensure stable operation.

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UCC3889DTR 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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