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UC1854BJ883B - Texas Instruments

Description: Enhanced High Power Factor Preregulator

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UC1854BJ883B - Texas Instruments - PCB symbol
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PCB Footprints
UC1854BJ883B - Texas Instruments PCB footprint - Ceramic Dual-In-Line Packages - Ceramic Dual-In-Line Packages - J(R-GDIP-T16)
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UC1854BJ883B - Texas Instruments - 3D model - Ceramic Dual-In-Line Packages - J(R-GDIP-T16)
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UC1854BJ883B Details

  • Manufacturer Part Number:

    UC1854BJ883B

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    16

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Date Of Intro:

    1992-12-01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    POWER FACTOR CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    20 V

  • Input Voltage-Min:

    10 V

  • Input Voltage-Nom:

    18 V

  • JESD-30 Code:

    R-GDIP-T16

  • JESD-609 Code:

    e0

  • Length:

    19.56 mm

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °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:

    CERAMIC, GLASS-SEALED

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP16,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Screening Level:

    MIL-STD-883 Class B

  • Seated Height-Max:

    5.08 mm

  • Supply Current-Max (Isup):

    12 mA

  • Supply Voltage-Max (Vsup):

    20 V

  • Supply Voltage-Nom (Vsup):

    18 V

  • Surface Mount:

    NO

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    200 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

UC1854BJ883B Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended PCB layout in the application note SLUA271, which includes guidelines for component placement, trace routing, and thermal management to ensure optimal performance and minimize electromagnetic interference (EMI).
  • The UC1854BJ883B datasheet provides guidelines for selecting input and output capacitors based on the specific application requirements. In general, low-ESR capacitors with a high ripple current rating are recommended. TI also provides a capacitor selection guide in the application note SLUA271.
  • The UC1854BJ883B is rated for operation up to 85°C ambient temperature. However, it's essential to consider the thermal management of the device, including heat sinking and airflow, to ensure reliable operation and prevent overheating.
  • The UC1854BJ883B has a built-in overcurrent protection feature that can be enabled by connecting a resistor between the OC pin and the GND pin. The value of the resistor determines the overcurrent threshold. TI provides more information on implementing overcurrent protection in the application note SLUA271.
  • The recommended startup sequence is to first apply the input voltage, followed by the enable signal (EN pin). This ensures that the device is properly biased and configured before the output voltage is enabled.

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UC1854BJ883B 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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