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UCC28950PW - Texas Instruments

Description: Texas Instruments UCC28950PW, PWM Controller 1 MHz, 8 → 17 V, 24-Pin TSSOP

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UCC28950PW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW0024A
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UCC28950PW - Texas Instruments  - 3D model - Small Outline Packages - PW0024A
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UCC28950PW Details

  • Manufacturer Part Number:

    UCC28950PW

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Pin Count:

    24

  • Country Of Origin:

    Taiwan

  • 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:

    PHASE-SHIFT CONTROL

  • Input Voltage-Max:

    17 V

  • Input Voltage-Min:

    8 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G24

  • JESD-609 Code:

    e4

  • Length:

    7.8 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP24,.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 Voltage-Max (Vsup):

    17 V

  • Supply Voltage-Min (Vsup):

    8 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    PUSH-PULL

  • Switching Frequency-Max:

    1000 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • 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

UCC28950PW Frequently Asked Questions (FAQs)

  • A good PCB layout for the UCC28950PW involves keeping the high-frequency switching nodes (e.g., SW and VIN) away from sensitive analog nodes, using a solid ground plane, and minimizing loop areas. TI provides a recommended layout in the datasheet and application notes.
  • Optimizing the compensation network involves selecting the right values for the compensation components (R1, R2, C1, and C2) based on the specific application requirements. TI provides a compensation calculator tool and application notes to help with this process.
  • The maximum allowed voltage on the VIN pin is 28V, but it's recommended to keep it below 24V for reliable operation. Exceeding this voltage can damage the device.
  • To ensure the UCC28950PW operates within its SOA, monitor the device's junction temperature, input voltage, and output current. Make sure to follow the recommended operating conditions and thermal management guidelines in the datasheet.
  • Yes, the UCC28950PW can be used in a synchronous rectification topology. However, this requires careful design and layout considerations to ensure proper operation and minimize losses.

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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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