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UC2843BD1 - STMicroelectronics

Description: STMICROELECTRONICS - UC2843BD1 - IC, CURRENT MODE PWM, 2843, SOIC8

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UC2843BD1 - STMicroelectronics - PCB symbol
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PCB Footprints
UC2843BD1 - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - SO-8 1.75mm thickness
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UC2843BD1 - STMicroelectronics - 3D model - Small Outline Packages - SO-8 1.75mm thickness
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UC2843BD1 Details

  • Manufacturer Part Number:

    UC2843BD1

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    SO-8

  • Pin Count:

    8

  • Country Of Origin:

    Morocco

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    14 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    7

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    30 V

  • Input Voltage-Min:

    8.2 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -25 °C

  • Output Current-Max:

    1 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL EXTENDED

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    NOT SPECIFIED

  • Width:

    3.9 mm

UC2843BD1 Frequently Asked Questions (FAQs)

  • The recommended input capacitor value is 10uF to 22uF, depending on the input voltage and output current requirements. A larger capacitor value can help reduce input voltage ripple and improve overall system stability.
  • The inductor value depends on the output current, switching frequency, and desired ripple current. A general rule of thumb is to choose an inductor with a value between 10uH to 100uH, and a current rating that exceeds the maximum output current. You can also use online inductor selection tools or consult the application notes for guidance.
  • The UC2843BD1 can handle output currents up to 3A, but the actual maximum output current depends on the input voltage, output voltage, and thermal considerations. Be sure to check the datasheet and application notes for specific guidance on output current limitations.
  • To ensure stable operation, keep the UC2843BD1 within a temperature range of -40°C to 125°C. Make sure to provide adequate heat sinking and thermal management, especially in high-power applications. You can also use thermal simulation tools to estimate the junction temperature and optimize your design accordingly.
  • Yes, the UC2843BD1 can be used in a synchronous rectification configuration to improve efficiency. However, you'll need to add an external synchronous rectifier switch and ensure proper timing and control of the switch. Consult the application notes and datasheet for more information on synchronous rectification with the UC2843BD1.

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UC2843BD1 Overview

Use the download button to access the UC2843BD1 schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like UC284, or try a keyword search, such as Switching Regulator or Controllers

About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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