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UCC2891PW - Texas Instruments

Description: Texas Instruments UCC2891PW, PWM Current Mode Controller, 2 A, 1000 kHz, 12 V, 16-Pin TSSOP

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UCC2891PW - Texas Instruments - PCB symbol
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PCB Footprints
UCC2891PW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW0016A
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UCC2891PW - Texas Instruments - 3D model - Small Outline Packages - PW0016A
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UCC2891PW Details

  • Manufacturer Part Number:

    UCC2891PW

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Pin Count:

    16

  • 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-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:

    5 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:

    TSSOP

  • Package Equivalence Code:

    TSSOP16,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.2 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:

    0.65 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    4.4 mm

UCC2891PW Frequently Asked Questions (FAQs)

  • TI recommends a 4-layer PCB with a solid ground plane, and placing the UCC2891PW close to the input capacitors and output inductors. Additionally, keep the high-frequency components (e.g., switching node, bootstrap capacitor) away from sensitive analog circuits.
  • Use TI's Webench Power Designer tool or consult the UCC2891PW datasheet's application notes for guidance on selecting external components based on your specific input/output voltage, current, and frequency requirements.
  • Ensure good thermal contact between the UCC2891PW and a heat sink or PCB with thermal vias. Use thermal interface material (e.g., thermal tape, thermal grease) to fill gaps. Keep the heat sink away from sensitive components and ensure good airflow.
  • Use the UCC2891PW's built-in overcurrent protection (OCP) feature by connecting a sense resistor to the OCP pin. For fault detection, monitor the UCC2891PW's fault pin and implement a fault response mechanism (e.g., shutdown, alarm) based on your system's requirements.
  • The UCC2891PW has a higher switching frequency (up to 1 MHz) and a more advanced current-mode control architecture compared to the UCC2890. The UCC2895 has a different pinout and is optimized for higher-power applications. Consult the datasheets for specific differences and application guidance.

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UCC2891PW 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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UCC2891PW Alternates

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Part Image UCC2891PWR Texas Instruments

Switching Controller, Current-mode, 2.5A, 1000kHz Switching Freq-Max, BICMOS, PDSO16