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    1. Home/
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    3. Integrated Circuits - ICs/
    4. Interface ICs/
    5. UC3843BDR2 Onsemi

    UC3843BDR2 [Onsemi]

    UC3843BDR2
    UC3843BDR2

    Part No:

    UC3843BDR2

    Category:

    Interface ICs

    Manufacturer:

    Onsemi

    Description:

    The UC3842B, UC3843B series are high performance fixed frequency current mode controllers. They are specifically designed for Off−Line and DC−DC converter applications offering the designer a cost−effective solution with minimal external components.

    Datasheet:

    Product FAQ

    1. Is UC3843BDR2 available for RFQ?

    Yes. UC3843BDR2 by Onsemi is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

    2. Why is there no fixed price for UC3843BDR2?

    Pricing for UC3843BDR2 can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

    3. What are the key specifications of UC3843BDR2?

    UC3843BDR2 is a Onsemi Interface ICs with NCV3843BV Operating Temperature Max: +125°C and NCV3843BV Operating Temperature Min: -40°C. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for UC3843BDR2?

    Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

    5. How soon can UC3843BDR2 be shipped?

    If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

    6. Can you suggest alternatives to UC3843BDR2?

    Yes. If UC3843BDR2 is unavailable, obsolete, or does not meet your required lead time, we can help check similar Onsemi Interface ICs parts or compatible alternatives.

    RFQ

    Part Number:

    UC3843BDR2

    Manufacturer:

    Onsemi

    Looking for Pricing? Contact us for volume pricing.

    IMPORTANT NOTICE

    Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

    Featured Product

    Stock Status:

    Available for RFQ

    Pricing:

    Request Volume Pricing

    Quote Response:

    Within 24 Hours

    Shipping:

    In-stock parts ship in 1–2 business days

    Specification

    Type
    Parameter
    Output Current
    1.0A
    Supply Voltage
    30V
    Package
    PDIP-8, SOIC-8, SOIC-14
    RoHS Status
    RoHS Compliant
    RoHS Status
    Current Sense Gain
    3.0V/V
    Discharge Current
    8.3mA
    NCV3843BV Operating Temperature Max
    +125°C
    NCV3843BV Operating Temperature Min
    -40°C
    NCV3843BV Reference Voltage Max
    5.1V
    NCV3843BV Reference Voltage Min
    4.9V
    NCV3843BV UVLO Off
    7.6V
    NCV3843BV UVLO On
    8.5V
    Oscillator Frequency
    250kHz
    UC2842B Operating Temperature Max
    +85°C
    UC2842B Operating Temperature Min
    -25°C
    UC2842B Reference Voltage Max
    5.05V
    UC2842B Reference Voltage Min
    4.95V
    UC2843B Operating Temperature Max
    +85°C
    UC2843B Operating Temperature Min
    -25°C
    UC2843B Reference Voltage Max
    5.05V
    UC2843B Reference Voltage Min
    4.95V
    UC3842B Operating Temperature Max
    70°C
    UC3842B Operating Temperature Min
    0°C
    UC3842B Reference Voltage Max
    5.1V
    UC3842B Reference Voltage Min
    4.9V
    UC3842B UVLO Off
    10V
    UC3842B UVLO On
    16V
    UC3842BV Operating Temperature Max
    +105°C
    UC3842BV Operating Temperature Min
    -40°C
    UC3842BV UVLO Off
    10V
    UC3842BV UVLO On
    16V
    UC3843B Operating Temperature Max
    70°C
    UC3843B Operating Temperature Min
    0°C
    UC3843B Reference Voltage Max
    5.1V
    UC3843B Reference Voltage Min
    4.9V
    UC3843B UVLO Off
    7.6V
    UC3843B UVLO On
    8.5V
    UC3843BV Operating Temperature Max
    +105°C
    UC3843BV Operating Temperature Min
    -40°C
    UC3843BV UVLO Off
    7.6V
    UC3843BV UVLO On
    8.5V

    Products Detail

    These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET. Protective features include input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, programmable output deadtime, and a latch for single pulse metering. Available in 8-pin and 14-pin plastic packages.

    Key Features

    • Trimmed Oscillator for Precise Frequency Control
    • Oscillator Frequency Guaranteed at 250 kHz
    • Current Mode Operation to 500 kHz
    • Automatic Feed Forward Compensation
    • Latching PWM for Cycle-By-Cycle Current Limiting
    • Internally Trimmed Reference with Undervoltage Lockout
    • High Current Totem Pole Output
    • Undervoltage Lockout with Hysteresis
    • Low Startup and Operating Current
    • Pb-Free Packages Available

    Application scenarios

    • Off-Line
    • DC-DC converter
    • Automotive

    Documents

    Datasheets:

    UC3842B-43B, UC2842B-43B

    PCN Obsolescence/ EOL:

    Multiple Devices 03/Jan/2008

    ReachStatement:

    ON-Semiconductor-company-79.pdf
    Shipping & Warranty

    Fast Dispatch: Ships in 5-7 days(in-stock parts within 1-2 days)

    Unishop Global Export: 1-7 days, $40.00

    Guaranteed Delivery: Door-to-door in 30 days

    Compliant Worldwide Shipping: DHL, FedEx, SF, and UPS.

    Feature

    • 30-Day Guarantee
      30-Day Guarantee
    • Fasted Delivery
      Fasted Delivery
    • Hassle-Free Returns
      Hassle-Free Returns
    • Secure payment method
      Secure payment method

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