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UCC2891D - Texas Instruments

Description: Texas Instruments UCC2891D, PWM Current Mode Controller, 2 A, 1000 kHz, 12 V, 16-Pin SOIC

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UCC2891D - Texas Instruments - PCB symbol
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PCB Footprints
UCC2891D - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D (R-PDSO-G16)
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UCC2891D - Texas Instruments - 3D model - Small Outline Packages - D (R-PDSO-G16)
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UCC2891D Details

  • Manufacturer Part Number:

    UCC2891D

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    16

  • Country Of Origin:

    Mainland China, Mexico, Philippines, Taiwan

  • 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:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    16 V

  • Input Voltage-Min:

    8.5 V

  • Input Voltage-Nom:

    12 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:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    2.5 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    3 mA

  • Supply Voltage-Max (Vsup):

    16 V

  • Supply Voltage-Min (Vsup):

    8.5 V

  • Supply Voltage-Nom (Vsup):

    12 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    1000 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    INDUSTRIAL

  • 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

UCC2891D Frequently Asked Questions (FAQs)

  • TI recommends a 4-layer PCB with a solid ground plane, and placing the UCC2891D near the input capacitors and output inductors to minimize loop areas and reduce EMI. Additionally, keep the high-current paths short and use a common ground point for the input and output returns.
  • Use TI's online tools, such as the Power Stage Designer or the Webench Power Designer, to select the optimal external components based on your specific application requirements, such as input voltage, output voltage, and output current.
  • The UCC2891D has a maximum junction temperature of 150°C. Ensure good thermal conduction by using a thermal pad or heat sink, and follow TI's thermal design guidelines to prevent thermal shutdown and ensure reliable operation.
  • Use the UCC2891D's built-in overcurrent protection (OCP) feature, which can be set using the OCSET pin. Additionally, implement short-circuit protection using an external current sense resistor and a comparator to detect overcurrent conditions.
  • Use a common-mode choke and X-capacitors to filter EMI, and ensure that the PCB layout and component placement minimize radiated emissions. Follow TI's EMI design guidelines and consult with regulatory experts to ensure compliance with relevant standards.

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UCC2891D 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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UCC2891D Alternates

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Part Image UCC2891DG4 Texas Instruments

Switching Controller, Current-mode, 2.5A, 1000kHz Switching Freq-Max, BICMOS, PDSO16
Part Image UCC2891DR Texas Instruments

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