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UCD9248PFC - Texas Instruments

Description: Texas Instruments UCD9248PFC, PWM Controller 2 MHz, 3 → 3.6 V, 80-Pin QFP

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UCD9248PFC - Texas Instruments PCB footprint - Quad Flat Packages - Quad Flat Packages - PFC0080A
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UCD9248PFC - Texas Instruments  - 3D model - Quad Flat Packages - PFC0080A
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UCD9248PFC Details

  • Manufacturer Part Number:

    UCD9248PFC

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFP

  • Pin Count:

    80

  • Country Of Origin:

    Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    POWER FACTOR CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    3.6 V

  • Input Voltage-Min:

    3 V

  • Input Voltage-Nom:

    3.3 V

  • JESD-30 Code:

    S-PQFP-G80

  • JESD-609 Code:

    e4

  • Length:

    12 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Outputs:

    4

  • Number of Terminals:

    80

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Nom:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TFQFP

  • Package Equivalence Code:

    TQFP80,.55SQ

  • Package Shape:

    SQUARE

  • Package Style:

    FLATPACK

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.2 mm

  • Supply Current-Max (Isup):

    55 mA

  • Supply Voltage-Nom (Vsup):

    3.3 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    2000 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    12 mm

UCD9248PFC Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the high-frequency components (e.g., switching FETs, inductors) close to the IC, and use short, wide traces for power and ground connections.
  • Implement a soft-start circuit to limit the inrush current during start-up. For shutdown, ensure a controlled ramp-down of the output voltage to prevent voltage overshoot and stress on the components.
  • Choose input capacitors with low ESR (Equivalent Series Resistance) and high ripple current ratings. X7R or X5R ceramic capacitors or film capacitors with a voltage rating of 1.5 to 2 times the maximum input voltage are suitable options.
  • Use the TI's Power Stage Designer or a similar tool to design the compensation network. The goal is to achieve a stable, high-bandwidth loop with adequate phase margin. Start with the recommended values and adjust based on the specific application requirements.
  • Ensure good airflow around the IC, use a heat sink with a thermal interface material, and consider using a thermal pad or thermal tape to improve heat transfer. Monitor the junction temperature (TJ) and adjust the design accordingly to prevent overheating.

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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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Part Image UCD9248PFCR Texas Instruments

Power Factor Controller, Voltage-mode, 2000kHz Switching Freq-Max, PQFP80