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UC2842BD1G - onsemi

Description: Obsolete - High Performance Current Mode PWM Controller

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UC2842BD1G - onsemi - PCB symbol
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PCB Footprints
UC2842BD1G - onsemi PCB footprint - Small Outline Packages - Small Outline Packages - SOIC−8 NB CASE 751−0
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UC2842BD1G - onsemi - 3D model - Small Outline Packages - SOIC−8 NB CASE 751−0
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UC2842BD1G Details

  • Manufacturer Part Number:

    UC2842BD1G

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC-8 Narrow Body

  • Package Description:

    SOIC-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    751-07

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    4 Weeks

  • Manufacturer:

    onsemi

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    25 V

  • Input Voltage-Min:

    12 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:

    BUCK-BOOST

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

UC2842BD1G 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 voltage, output current, and switching frequency. A general rule of thumb is to choose an inductor value that results in a peak-to-peak ripple current of 20-30% of the output current. The datasheet provides a formula to calculate the inductor value based on these parameters.
  • The UC2842BD1G has a maximum ambient temperature rating of 85°C. However, the device can operate at higher temperatures with derating. It's essential to ensure proper thermal management and heat sinking to maintain reliable operation.
  • Yes, the UC2842BD1G can be used in a synchronous rectification topology. However, it requires additional external components and careful design consideration to ensure proper operation. The datasheet provides guidance on synchronous rectification design, but it's recommended to consult with an experienced engineer or onsemi's application notes for more information.
  • The bootstrap capacitor (CB) is used to generate the high-side gate drive voltage for the power MOSFET. It's essential to choose a capacitor with a suitable voltage rating and low ESR to ensure reliable operation and minimize power losses.

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UC2842BD1G Overview

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