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UC3823DW - Texas Instruments

Description: Texas Instruments UC3823DW, PWM Current Mode Controller, 1.5 A, 1000 kHz 16-Pin SOIC

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UC3823DW - Texas Instruments - PCB symbol
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PCB Footprints
UC3823DW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW (R-PDSO-G16)
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3D Models
UC3823DW - Texas Instruments - 3D model - Small Outline Packages - DW (R-PDSO-G16)
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UC3823DW Details

  • Manufacturer Part Number:

    UC3823DW

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    CAN ALSO BE CONFIGURED IN CURRENT MODE

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT/VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    12 V

  • Input Voltage-Min:

    10 V

  • Input Voltage-Nom:

    15 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:

    2 A

  • Output Voltage-Max:

    5.2 V

  • Output Voltage-Min:

    5 V

  • Output Voltage-Nom:

    5.1 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):

    33 mA

  • Supply Voltage-Max (Vsup):

    12 V

  • Supply Voltage-Min (Vsup):

    9.2 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    1000 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:

    7.5 mm

UC3823DW Frequently Asked Questions (FAQs)

  • The UC3823DW is a high-frequency device, and proper layout and placement are crucial for its operation. TI recommends a 4-layer PCB with a solid ground plane, and the device should be placed close to the input capacitors. The output inductor and diode should be placed close to the device as well. A good layout will help reduce EMI and improve efficiency.
  • The UC3823DW uses a transconductance amplifier for voltage mode control. To compensate the device, a type 2 compensator is recommended, which consists of a resistor and capacitor in series, and another capacitor in parallel. The values of these components depend on the specific application and can be calculated using TI's compensation calculator or by following the guidelines in the datasheet.
  • The UC3823DW has an absolute maximum input voltage rating of 30V. However, the recommended maximum input voltage is 24V to ensure reliable operation and to prevent damage to the device.
  • Yes, the UC3823DW can be used in a synchronous rectification topology. In this configuration, the device's internal switch is used as the main switch, and an external FET is used as the synchronous rectifier. This topology can improve efficiency and reduce power losses.
  • The UC3823DW has a built-in overcurrent protection feature that can be enabled by connecting a resistor between the ISENSE pin and ground. The value of this resistor determines the overcurrent threshold. Additionally, an external current sense resistor can be used to monitor the output current and shut down the device in case of an overcurrent condition.

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UC3823DW 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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