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UC3844BD1R2G - onsemi

Description: High Current Totem Pole Output; Current Mode Operation to 500 kHz Output Switching Frequency; Latching PWM for Cycle-By-Cycle Current Limiting; Automatic Feed Forward Compensation; Internally Trimmed Reference with Undervoltage Lockout; Undervoltage Lockout with Hysteresis; Oscillator Frequency Guaranteed at 250 kHz; Low Startup and Operating Current; Trimmed Oscillator for Precise Frequency Control; Output Deadtime Adjustable from 50% to 70%; Pb-Free Packages are Available

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UC3844BD1R2G - onsemi PCB footprint - Small Outline Packages - Small Outline Packages - SOIC-8 NB CAST 751-07
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UC3844BD1R2G - onsemi  - 3D model - Small Outline Packages - SOIC-8 NB CAST 751-07
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UC3844BD1R2G Details

  • Manufacturer Part Number:

    UC3844BD1R2G

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC-8 Narrow Body

  • Package Description:

    SOIC-8 Narrow Body-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    751-07

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    18 Weeks

  • Manufacturer:

    onsemi

  • YTEOL:

    6

  • 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:

    70 °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

  • Supply Current-Max (Isup):

    17 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    275 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

UC3844BD1R2G Frequently Asked Questions (FAQs)

  • The UC3844BD1R2G can operate from -40°C to 125°C, making it suitable for a wide range of applications.
  • To ensure stability and oscillation at the desired frequency, make sure to follow the recommended component values and PCB layout guidelines in the datasheet, and consider using a compensation network to stabilize the oscillator.
  • The UC3844BD1R2G can handle a maximum output current of 1A, making it suitable for a wide range of power supply applications.
  • To protect the UC3844BD1R2G from overvoltage and undervoltage conditions, consider using voltage regulators, zener diodes, or other overvoltage protection circuits to ensure the input voltage remains within the recommended operating range.
  • Yes, the UC3844BD1R2G is suitable for high-reliability and automotive applications due to its high temperature rating, low noise, and high reliability.

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UC3844BD1R2G Overview

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