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UC3854DWTRG4 - Texas Instruments

Description: Power Factor Correction PREREGUL 1.5mA 118KHz 16-Pin SOIC T/R

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UC3854DWTRG4 - Texas Instruments - PCB symbol
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PCB Footprints
UC3854DWTRG4 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW (R-PDSO-G16)
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UC3854DWTRG4 - Texas Instruments - 3D model - Small Outline Packages - DW (R-PDSO-G16)
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UC3854DWTRG4 Details

  • Manufacturer Part Number:

    UC3854DWTRG4

  • 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:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    POWER FACTOR CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    30 V

  • Input Voltage-Min:

    15 V

  • Input Voltage-Nom:

    18 V

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    10.285 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    1.5 A

  • Output Voltage-Max:

    7.6 V

  • Output Voltage-Min:

    7.4 V

  • Output Voltage-Nom:

    7.5 V

  • 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):

    10 mA

  • Supply Voltage-Max (Vsup):

    30 V

  • Supply Voltage-Nom (Vsup):

    18 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    200 kHz

  • Technology:

    BIPOLAR

  • 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:

    7.49 mm

UC3854DWTRG4 Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended PCB layout in the application note SLUA121, which includes guidelines for component placement, trace routing, and thermal management to ensure optimal performance and minimize electromagnetic interference (EMI).
  • The UC3854DWTRG4 requires a transformer with a turns ratio of 1:1.2 to 1:1.5, and a magnetizing inductance of at least 10 μH. The transformer should also be designed to handle the maximum output power and voltage of the converter. Texas Instruments provides a transformer design guide in the application note SLUA122.
  • The UC3854DWTRG4 has an operating ambient temperature range of -40°C to 85°C, but the maximum junction temperature (TJ) is 150°C. The device should be derated for temperatures above 85°C to ensure reliable operation.
  • The UC3854DWTRG4 has a built-in OVP circuit, but it can be overridden by an external OVP circuit. A simple OVP circuit can be implemented using a voltage divider, a comparator, and a MOSFET to disconnect the input power supply in case of an overvoltage condition.
  • The recommended input capacitor type is a low-ESR ceramic capacitor, such as X5R or X7R, with a value of 10 μF to 22 μF. The capacitor should be rated for the maximum input voltage and have a low equivalent series resistance (ESR) to minimize voltage ripple and ensure stable operation.

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UC3854DWTRG4 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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