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UCC3804D - Texas Instruments

Description: UCC3804DG4, PWM Current Mode Controller, 1A Boost, Buck, Flyback, 1MHz 8-Pin SOIC

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UCC3804D Details

  • Manufacturer Part Number:

    UCC3804D

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Pin Count:

    8

  • Country Of Origin:

    Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    12 V

  • Input Voltage-Min:

    9 V

  • Input Voltage-Nom:

    10 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    1 A

  • 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 Current-Max (Isup):

    25 mA

  • Supply Voltage-Max (Vsup):

    12 V

  • Supply Voltage-Nom (Vsup):

    10 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    1000 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

UCC3804D Frequently Asked Questions (FAQs)

  • TI recommends a compact layout with the UCC3804D placed close to the transformer, and the use of a ground plane to minimize EMI and noise. Additionally, TI provides a reference design and layout guidelines in the datasheet and application notes.
  • The transformer selection depends on the specific application requirements, such as output power, voltage, and frequency. TI provides guidelines for transformer selection in the datasheet and application notes, including recommendations for core material, turns ratio, and leakage inductance.
  • The UCC3804D has a maximum allowable voltage stress of 15V. To protect it from overvoltage, TI recommends the use of voltage clamping devices, such as zener diodes or transient voltage suppressors, and the implementation of overvoltage protection circuits.
  • To optimize the UCC3804D for low standby power consumption, TI recommends the use of a low-ESR capacitor, minimizing the number of external components, and optimizing the transformer design. Additionally, the UCC3804D has a built-in low-power mode that can be enabled to reduce standby power consumption.
  • The UCC3804D has a maximum junction temperature of 150°C. To prevent overheating, TI recommends the use of a heat sink, thermal interface material, and a well-designed PCB layout that allows for good airflow and heat dissipation.

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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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