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UCC28704DBVR-1 - Texas Instruments

Description: Off-Line Constant-Voltage Constant-Current Flyback Controller With Primary-Side Regulation (PSR)

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UCC28704DBVR-1 - Texas Instruments PCB footprint - SOT23 (6-Pin) - SOT23 (6-Pin) - SOT-23-6
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UCC28704DBVR-1 - Texas Instruments  - 3D model - SOT23 (6-Pin) - SOT-23-6
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UCC28704DBVR-1 Details

  • Manufacturer Part Number:

    UCC28704DBVR-1

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Country Of Origin:

    Mainland China, Malaysia, Philippines, Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Date Of Intro:

    2016-02-27

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT/VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    450 V

  • Input Voltage-Min:

    21 V

  • Input Voltage-Nom:

    25 V

  • JESD-30 Code:

    R-PDSO-G6

  • JESD-609 Code:

    e4

  • Length:

    2.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    6

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    5 A

  • Output Voltage-Max:

    80 V

  • Output Voltage-Min:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LSSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.45 mm

  • Supply Current-Max (Isup):

    2.65 mA

  • Supply Voltage-Nom (Vsup):

    25 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    85 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.95 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    1.6 mm

UCC28704DBVR-1 Frequently Asked Questions (FAQs)

  • A good PCB layout for the UCC28704DBVR-1 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.
  • When selecting a transformer for the UCC28704DBVR-1, consider the output power, input voltage, and desired output voltage. TI provides a transformer selection guide in the datasheet and application notes. Additionally, consider factors like core material, turns ratio, and leakage inductance.
  • The maximum ambient temperature for the UCC28704DBVR-1 is 85°C. However, the device can operate up to 125°C junction temperature. Ensure proper thermal design and heat sinking to maintain a safe operating temperature.
  • The UCC28704DBVR-1 has a built-in OVP feature. Connect a resistor divider network from the output voltage to the OVP pin to set the desired OVP threshold. The device will shut down if the output voltage exceeds this threshold.
  • Use a low-ESR, high-frequency ceramic capacitor (e.g., X7R or X5R) with a value of 10-22 μF for the input capacitor. This helps to filter the input voltage and reduce noise.

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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 UCC28704DBVT-1 Texas Instruments

Switching Controller, Current/voltage-mode, 5A, 85kHz Switching Freq-Max, BICMOS, PDSO6