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UC3843D

Single channel SO14 package

ISO14001 ISO9001 DUNS

Brands: Texas Instruments

Mfr.Part #: UC3843D

Datasheet: UC3843D Datasheet (PDF)

Package/Case: SOIC (D)-14

RoHS Status:

Stock Condition: 5,413 pcs, New Original

Warranty: 1 Year Ovaga Warranty - Find Out More

Quick Quote

Please submit RFQ for UC3843D or email to us: Email: [email protected], we will contact you within 12 hours.

UC3843D General Description

The UC3843D is a high-performance current mode PWM controller designed for offline and DC-to-DC converter applications. It features a frequency of operation up to 500 kHz, allowing for efficient power conversion. The UC3843D includes a high-current totem-pole output stage that can source and sink up to 1A of current, providing flexibility in driving various power MOSFETs or IGBTs.This device also includes a precision voltage reference, error amplifier, oscillator, PWM comparator, and a dead-time control comparator. The UC3843D offers a variety of protection features such as overcurrent protection, overvoltage protection, and thermal shutdown to ensure reliable operation and safeguard against potential faults.Additionally, the UC3843D is offered in a standard 8-pin DIP package, making it suitable for a wide range of power supply and converter applications.

Features

  • Voltage mode PWM controller
  • Adjustable frequency
  • Low start-up current
  • Current sense input
  • Current mode control
  • UVLO protection
  • Soft-start
  • Overcurrent protection
  • Thermal shutdown
  • Available in DIP and SOIC packages
  • Application

  • The UC3843D is commonly used in power supply applications such as offline flyback converters, DC-DC converters, and LED drivers
  • It is also used in battery chargers, inverter circuits, and other power management systems where precise control of voltage and current is required
  • Specifications

    Parameter Value Parameter Value
    Topology Boost, Buck, Buck boost, Flyback, Forward Control mode Peak current mode
    Duty cycle (max) (%) 100 Switching frequency (max) (kHz) 500
    Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Multi-topology UVLO thresholds on/off (V) 8.4/7.6
    Operating temperature range (°C) 0 to 70 Rating Catalog
    Gate drive (typ) (A) 1

    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

    Terms of payment Hand Fee
    Wire Transfer Wire Transfer charge US$30.00 banking fee.
    Paypal Paypal charge 4.0% service fee.
    Credit Card Credit Card charge 3.5% service fee.
    Western Union Western Union charge US.00 banking fee.
    Money Gram Money Gram charge US$0.00 banking fee.

    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

    We provide high quality products, thoughtful service and after sale guarantee

    • Product

      We have rich products, can meet your various needs.

    • quantity

      Minimum order quantity starts from 1pcs.

    • shipping

      Lowest international shipping fee starts from $0.00

    • guarantee

      365 days quality guarantee for all products

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