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UC3845BVD1R2G - 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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UC3845BVD1R2G - onsemi PCB footprint - Small Outline Packages - Small Outline Packages - SOC_NB
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UC3845BVD1R2G Details

  • Manufacturer Part Number:

    UC3845BVD1R2G

  • 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:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • 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:

    105 °C

  • Operating Temperature-Min:

    -40 °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:

    INDUSTRIAL

  • 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

UC3845BVD1R2G Frequently Asked Questions (FAQs)

  • The recommended operating voltage range for the UC3845BVD1R2G is 12V to 28V, with a typical voltage of 15V.
  • The choice of external components such as the transformer, inductor, and capacitor values depends on the specific application and design requirements. Refer to the datasheet and application notes for guidance on selecting the right components.
  • The UC3845BVD1R2G is a controller IC and does not have a power rating. The power rating depends on the external components and the design of the power supply.
  • The UC3845BVD1R2G has a built-in current limit pin (ILIM) that can be used to implement overcurrent protection. The ILIM pin is connected to a resistor that sets the current limit threshold.
  • The UC3845BVD1R2G is suitable for both isolated and non-isolated power supplies. The choice of topology depends on the specific application requirements.

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UC3845BVD1R2G Overview

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