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UCC3817DW - Texas Instruments

Description: Texas Instruments UCC3817DW, Power Factor Pre-Regulator Circuit, 115 kHz, 12 → 17 V, 16-Pin SOIC

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UCC3817DW - Texas Instruments - PCB symbol
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PCB Footprints
UCC3817DW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW (R-PDSO-G16)
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UCC3817DW - Texas Instruments - 3D model - Small Outline Packages - DW (R-PDSO-G16)
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UCC3817DW Details

  • Manufacturer Part Number:

    UCC3817DW

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • 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

UCC3817DW Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a compact layout with the UCC3817DW placed close to the DC-DC converter, using a star-ground configuration and separating the analog and power grounds. Additionally, a shielded inductor and a low-ESR output capacitor can help reduce EMI and noise.
  • Optimizing the compensation network involves selecting the right values for the compensation resistors and capacitors. TI recommends using the compensation calculator tool or following the guidelines in the application note SLUP136 to determine the optimal values for the specific application.
  • The maximum allowed voltage on the VCC pin of the UCC3817DW is 15V, but it's recommended to keep it below 12V to ensure reliable operation and prevent damage to the device.
  • The UCC3817DW is rated for operation up to 125°C, but it's essential to consider the thermal design and ensure that the device is properly cooled to prevent overheating. TI recommends following the thermal design guidelines in the datasheet and application notes.
  • To troubleshoot issues with the UCC3817DW, start by checking the power supply, output voltage, and current sense resistors. Verify that the compensation network is properly designed and implemented. Use an oscilloscope to observe the waveforms and identify any signs of oscillation or instability. Consult the application notes and TI's support resources for further guidance.

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UCC3817DW 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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For a full list of alternate parts for UCC3817DW, check out Findchips.com