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UCC3818ADR - Texas Instruments

Description: BiCMOS Power Factor Preregulator

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UCC3818ADR - Texas Instruments - PCB symbol
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UCC3818ADR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D (R-PDSO-G16)
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UCC3818ADR - Texas Instruments - 3D model - Small Outline Packages - D (R-PDSO-G16)
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UCC3818ADR Details

  • Manufacturer Part Number:

    UCC3818ADR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Part Package Code:

    SOIC

  • Pin Count:

    16

  • Country Of Origin:

    Mexico

  • 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:

    9.9 mm

  • Moisture Sensitivity Level:

    1

  • 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,.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):

    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:

    3.9 mm

UCC3818ADR Frequently Asked Questions (FAQs)

  • TI recommends a 4-layer PCB with a solid ground plane, and placing the UCC3818ADR close to the input capacitors and output inductors to minimize loop areas and reduce EMI. Additionally, a shielded enclosure and proper cable shielding can help reduce noise.
  • Ensure good airflow around the device, use a heat sink with a thermal resistance of <1°C/W, and keep the junction temperature (TJ) below 125°C. Also, consider using thermal interface materials and a thermal pad to improve heat transfer.
  • Choose capacitors with low ESR, high ripple current rating, and a voltage rating that exceeds the maximum input voltage. X5R or X7R ceramic capacitors are recommended for their low ESR and high reliability.
  • Use the EN pin to disable the device during standby, and ensure the input voltage is removed or reduced to minimize quiescent current. Additionally, consider using a low-dropout linear regulator for the bias supply to reduce power consumption.
  • Choose a compensation network that provides sufficient phase margin (>45°) and gain margin (>10 dB). Use a type-III compensation network for high-bandwidth applications, and consider using a feedforward capacitor to improve stability.

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UCC3818ADR 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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