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ON UC3844BVDG

UC3844BVDG is a current mode PWM controller featuring a 1A output at 500kHz, housed in a 14-pin SOIC package

ISO14001 ISO9001 DUNS

Brands: Onsemi

Mfr.Part #: UC3844BVDG

Datasheet: UC3844BVDG Datasheet (PDF)

Package/Case: SOIC-14

Product Type: Power Management ICs

RoHS Status:

Stock Condition: 3770 pcs, New Original

Warranty: 1 Year Ovaga Warranty - Find Out More

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UC3844BVDG General Description

The UC3844BVDG is a voltage mode pulse width modulation (PWM) controller IC designed for use in power supply applications. It operates with supply voltage ranging from 8V to 20V and can deliver output voltages up to 36V. The UC3844BVDG features a built-in oscillator capable of producing frequencies up to 500kHz, making it suitable for use in high-frequency switching power supplies.This IC offers a range of protection features including overvoltage protection, overcurrent protection, and thermal shutdown to ensure safe and reliable operation. It also includes a soft-start function to prevent large in-rush currents during start-up.The UC3844BVDG is housed in an 8-pin SOIC package, making it compact and easy to integrate into power supply designs. It is designed to operate over a wide temperature range of -40°C to 105°C, allowing for use in a variety of environments.

uc3844bvdg

Features

  • The UC3844BVDG is a high performance current mode controller designed for off-line power supplies
  • It features a precision voltage reference, programmable oscillator frequency, low startup and operating current, and adjustable soft-start
  • Additionally, it offers cycle-by-cycle current limiting, on-time control, and high output drive capability
  • It is available in an SOIC-14 package
  • Application

  • The UC3844BVDG is commonly used in switch mode power supplies, battery chargers, LED drivers, and DC-DC converters
  • It is also suitable for applications in automotive power management, industrial control systems, and telecommunications equipment
  • With its high efficiency and wide input voltage range, the UC3844BVDG is ideal for various power management applications
  • Specifications

    Parameter Value Parameter Value
    Status Last Shipments Compliance PbAHP
    Package Type SOIC-14 Case Outline 751A-03
    MSL Type 1 MSL Temp (°C) 260
    Container Type TUBE Container Qty. 55
    ON Target N Topology Step-Up
    Control Mode Current Mode fsw Typ (kHz) 52
    Stand-by Mode No UVLO (V) Yes
    Short Circuit Protection Yes Latch No
    Soft Start Yes VCC Max (V) 25
    Drive Cap. (mA) 200 / 200

    Shipping

    Shipping Type Ship Fee Lead Time
    DHL DHL $20.00-$40.00 (0.50 KG) 2-5 days
    Fedex Fedex $20.00-$40.00 (0.50 KG) 2-5 days
    UPS UPS $20.00-$40.00 (0.50 KG) 2-5 days
    TNT TNT $20.00-$40.00 (0.50 KG) 2-5 days
    EMS EMS $20.00-$40.00 (0.50 KG) 2-5 days
    REGISTERED AIR MAIL REGISTERED AIR MAIL $20.00-$40.00 (0.50 KG) 2-5 days

    Processing Time:Shipping fee depend on different zone and country.

    Payment

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    Wire Transfer Wire Transfer charge US$30.00 banking fee.
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    Credit Card Credit Card charge 3.5% service fee.
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    Guarantees

    1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

    2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.

    Packing

    • Product

      Step1 :Product

    • Vacuum packaging

      Step2 :Vacuum packaging

    • Anti-static bag

      Step3 :Anti-static bag

    • Individual packaging

      Step4 :Individual packaging

    • Packaging boxes

      Step5 :Packaging boxes

    • bar-code shipping tag

      Step6 :bar-code shipping tag

    All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

    Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

    We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

    After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

    • ESD
    • ESD

    Part points

    • The UC3844BVDG is a control IC chip designed for power supply applications. It provides necessary functions for controlling and regulating output voltage, current, and power in various circuits. The chip uses voltage mode control with pulse width modulation (PWM) and includes features like overvoltage protection, undervoltage lockout, and soft start. It is commonly used in offline and DC-DC converter circuits.
    • Equivalent

      The equivalent products of the UC3844BVDG chip include the UC3844VD, UC3844AQ, UC3844N, UC3844AD, UC3844BD1R2G, UC3844BDG, UC3844D1R2G, UC3844AN, and UC3844P.
    • Features

      The UC3844BVDG is a high-performance current-mode PWM controller that features a frequency range up to 500 kHz, voltage feed-forward compensation, an internally trimmed oscillator, soft-start, and cycle-by-cycle current limiting. It also incorporates an undervoltage lockout with hysteresis, a 50 ns start-up time, and a high-current totem pole output.
    • Pinout

      The UC3844BVDG is a PWM controller IC with a pin count of 8. The pins include VCC, GND, FB/Comp, CS, RT/CT, EN/UVLO, output, and output. The IC is typically used for controlling power supplies and converters.
    • Manufacturer

      The manufacturer of the UC3844BVDG is Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures integrated circuits for a wide range of applications, including analog and digital signal processing, microcontrollers, and power management.
    • Application Field

      The UC3844BVDG is a high-performance current-mode PWM controller used in various applications such as power supplies, battery chargers, LED lighting, and motor control. It provides for enhanced stability, accuracy, and protection features, making it suitable for multiple power management applications.
    • Package

      The UC3844BVDG chip is available in a surface-mount package type known as SOIC (Small Outline Integrated Circuit). Its form is rectangular and it measures approximately 5.3mm x 6.4mm.

    Datasheet PDF

    Preliminary Specification UC3844BVDG PDF Download

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