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UC39431D - Texas Instruments

Description: Precision Adjustable Shunt Regulator

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UC39431D - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D
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UC39431D Details

  • Manufacturer Part Number:

    UC39431D

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    0.150 INCH, PLASTIC, SOIC-8

  • Pin Count:

    8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    PROGRAMMABLE TO PROVIDE REGULATED VOLTAGES OF 2.82V, 3.12V, 5.1V, 7.8V, 10.42V, 12.24V

  • Analog IC - Other Type:

    THREE TERMINAL VOLTAGE REFERENCE

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.89 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    0.05 A

  • Output Voltage-Max:

    36 V

  • Output Voltage-Min:

    2.3 V

  • Output Voltage-Nom:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Voltage-Max (Vsup):

    36 V

  • Supply Voltage-Min (Vsup):

    2.2 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    NICKEL PALLADIUM GOLD

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Trim/Adjustable Output:

    YES

  • Width:

    3.9 mm

UC39431D Frequently Asked Questions (FAQs)

  • It is recommended to place the UC39431D close to the power source, use a solid ground plane, and keep the input and output traces short and separate to minimize EMI and noise. Additionally, use a shielded inductor and place it away from sensitive components.
  • Ensure good airflow around the device, use a heat sink if necessary, and avoid operating the device in high-temperature environments. The recommended operating temperature range is -40°C to 85°C.
  • The UC39431D can handle input voltages up to 40V, but it's recommended to operate within the specified input voltage range of 12V to 28V for optimal performance and reliability.
  • The output voltage of the UC39431D can be adjusted by changing the value of the feedback resistors (R1 and R2) or by using a voltage adjustment pin (VADJ). Refer to the datasheet for specific equations and guidelines.
  • The minimum input capacitance required is 10uF, but it's recommended to use a higher value (e.g., 22uF) to ensure stable operation and minimize input voltage ripple.

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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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