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UCC3818DWTR - Texas Instruments

Description: BiCMOS Power Factor Preregulator

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UCC3818DWTR - Texas Instruments - PCB symbol
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UCC3818DWTR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW0016A
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UCC3818DWTR - Texas Instruments - 3D model - Small Outline Packages - DW0016A
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UCC3818DWTR Details

  • Manufacturer Part Number:

    UCC3818DWTR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Part Package Code:

    SOIC

  • Pin Count:

    16

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    POWER FACTOR CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    18 V

  • Input Voltage-Min:

    10.3 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    10.3 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    1.2 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.65 mm

  • Supply Current-Max (Isup):

    4 mA

  • Supply Voltage-Max (Vsup):

    18 V

  • Supply Voltage-Nom (Vsup):

    12 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    250 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:

    7.5 mm

UCC3818DWTR Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a compact layout with short traces, and placing the IC close to the power stage. Additionally, a solid ground plane and a separate analog ground plane can help reduce noise and EMI. Refer to the application note SLUA271 for more details.
  • The VREF pin capacitor value depends on the desired soft-start time and the output voltage. A larger capacitor value will result in a slower soft-start, while a smaller value will result in a faster soft-start. A good starting point is 10nF to 22nF. Refer to the datasheet and application notes for more information.
  • The maximum allowed voltage on the VCC pin is 15V, but it's recommended to keep it below 12V to ensure reliable operation and to prevent damage to the IC.
  • The UCC3818DWTR has a built-in OVP feature that can be enabled by connecting the OVP pin to a resistor divider network that senses the output voltage. When the output voltage exceeds the set threshold, the OVP pin will pull low, shutting down the converter. Refer to the datasheet and application notes for more information.
  • The recommended operating frequency range for the UCC3818DWTR is 50kHz to 500kHz. Operating outside this range may affect the converter's performance and stability.

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UCC3818DWTR Overview

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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 UCC3818DW Texas Instruments

Power Factor Controller, Current-mode, 1.2A, 250kHz Switching Freq-Max, BICMOS, PDSO16