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UCC28251RGPR - Texas Instruments

Description: Advanced PWM Controller with Pre-Bias Operation

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PCB Footprints
UCC28251RGPR - Texas Instruments PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - RGP  (S-PVQFN-N20)
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3D Models
UCC28251RGPR - Texas Instruments  - 3D model - Quad Flat No-Lead - RGP  (S-PVQFN-N20)
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UCC28251RGPR Details

  • Manufacturer Part Number:

    UCC28251RGPR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Country Of Origin:

    Philippines

  • 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:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    17 V

  • Input Voltage-Min:

    4.7 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    S-PQCC-N20

  • JESD-609 Code:

    e4

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    3.33 V

  • Output Voltage-Min:

    3.17 V

  • Output Voltage-Nom:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC20,.16SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1 mm

  • Supply Current-Max (Isup):

    2.5 mA

  • Supply Voltage-Max (Vsup):

    17 V

  • Supply Voltage-Min (Vsup):

    4.7 V

  • Supply Voltage-Nom (Vsup):

    12 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:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    4 mm

UCC28251RGPR Frequently Asked Questions (FAQs)

  • A good PCB layout for the UCC28251RGPR involves keeping the input and output stages separate, using a star-ground configuration, and minimizing the length of the power traces. TI provides a recommended PCB layout in the datasheet and application notes.
  • To ensure stability, ensure that the output capacitor is properly sized and selected, the input voltage is within the recommended range, and the feedback network is properly designed. Additionally, follow the recommended layout guidelines and decouple the power supply pins.
  • The UCC28251RGPR can deliver up to 5A of output current, but this is dependent on the input voltage, output voltage, and thermal conditions. Be sure to check the datasheet for specific current ratings and thermal derating.
  • The UCC28251RGPR is rated for operation up to 125°C, but the maximum junction temperature (TJ) should not exceed 150°C. Be sure to follow the thermal derating guidelines in the datasheet and consider using a heat sink if necessary.
  • Start by checking the input voltage, output voltage, and current draw. Verify that the feedback network is properly connected and that the output capacitor is properly sized. Use an oscilloscope to check for oscillations or other anomalies. Consult the datasheet and application notes for troubleshooting guides.

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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 UCC28251RGPT Texas Instruments

Switching Controller, Current/voltage-mode, 1000kHz Switching Freq-Max, PQCC20