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UC2843D8TR Current-Mode PWM Controller with 500kHz Operation 8.4V/7.9V UVLO 50mA Totem-Pole Output Internal Trimmed Bandgap Low Start-Up & Operating Current in SOIC-8

    Buy cheap UC2843D8TR Current-Mode PWM Controller with 500kHz Operation 8.4V/7.9V UVLO 50mA Totem-Pole Output Internal Trimmed Bandgap Low Start-Up & Operating Current in SOIC-8 from wholesalers
     
    Buy cheap UC2843D8TR Current-Mode PWM Controller with 500kHz Operation 8.4V/7.9V UVLO 50mA Totem-Pole Output Internal Trimmed Bandgap Low Start-Up & Operating Current in SOIC-8 from wholesalers
    • Buy cheap UC2843D8TR Current-Mode PWM Controller with 500kHz Operation 8.4V/7.9V UVLO 50mA Totem-Pole Output Internal Trimmed Bandgap Low Start-Up & Operating Current in SOIC-8 from wholesalers
    • Buy cheap UC2843D8TR Current-Mode PWM Controller with 500kHz Operation 8.4V/7.9V UVLO 50mA Totem-Pole Output Internal Trimmed Bandgap Low Start-Up & Operating Current in SOIC-8 from wholesalers
    • Buy cheap UC2843D8TR Current-Mode PWM Controller with 500kHz Operation 8.4V/7.9V UVLO 50mA Totem-Pole Output Internal Trimmed Bandgap Low Start-Up & Operating Current in SOIC-8 from wholesalers
    • Buy cheap UC2843D8TR Current-Mode PWM Controller with 500kHz Operation 8.4V/7.9V UVLO 50mA Totem-Pole Output Internal Trimmed Bandgap Low Start-Up & Operating Current in SOIC-8 from wholesalers

    UC2843D8TR Current-Mode PWM Controller with 500kHz Operation 8.4V/7.9V UVLO 50mA Totem-Pole Output Internal Trimmed Bandgap Low Start-Up & Operating Current in SOIC-8

    Ask Lasest Price
    Brand Name : Texas Instruments
    Model Number : UC2843D8TR
    Certification : CE, GCF, ROHS
    Price : Negotiable
    Payment Terms : T/T, Western Union,
    Supply Ability : 1000pcs per month
    Delivery Time : 3-5 working days after received the payment
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    UC2843D8TR Current-Mode PWM Controller with 500kHz Operation 8.4V/7.9V UVLO 50mA Totem-Pole Output Internal Trimmed Bandgap Low Start-Up & Operating Current in SOIC-8

    UC2843D8TR Current-Mode PWM Controller with 500kHz Operation 8.4V/7.9V UVLO 50mA Totem-Pole Output Internal Trimmed Bandgap Low Start-Up & Operating Current in SOIC-8


    Features

    • Optimized for off-line and DC-to-DC converters

    • Low start-up current (< 1mA)

    • Automatic feedforward compensation

    • Pulse-by-pulse current limiting

    • Enhanced load-response characteristics

    • Undervoltage lockout with hysteresis

    • Double-pulse suppression

    • High-current totem-pole output

    • Internally trimmed bandgap reference

    • Up to 500kHz operation

    • Error amplifier with low output resistance


    Applications

    • Switching regulators of any polarity

    • Transformer-coupled DC-DC converters


    Description

    The UCx84x series of control integrated circuits provide the features that are necessary to implement off-line or DC-to-DC fixed-frequency current-mode control schemes, with a minimum number of external components. The internally implemented circuits include an undervoltage lockout (UVLO), featuring a start-up current of less than 1mA, and a precision reference trimmed for accuracy at the error amplifier input. Other internal circuits include logic to provide latched operation, a pulse-width modulation (PWM) comparator that also provides current-limit control, and a totem-pole output stage that is designed to source or sink high-peak current. The output stage, designed for driving N-channel MOSFETs, is low when the output stage is in the off state.

    The UCx84x family offers a variety of package options, temperature range options, choice of maximum duty cycle, and choice of turnon and turnoff thresholds and hysteresis ranges. Devices with higher turnon or turnoff hysteresis are good choices for off-line power supplies, while the devices with a narrower hysteresis range are designed for DC-DC applications. The UC184x devices are specified for operation from –55°C to 125°C, the UC284x series is specified for operation from –40°C to 85°C, and the UC384x series is specified for operation from 0°C to 70°C.


    INFORMATION

    Category
    Manufacturer
    Texas Instruments
    Series
    Packaging
    Tape & Reel (TR)
    Cut Tape (CT)
    Digi-Reel®
    Part Status
    Active
    Applications
    PWM Controller
    Voltage - Input
    -0.3V ~ 6.3V
    Voltage - Supply
    12V ~ 28V
    Current - Supply
    11 mA
    Operating Temperature
    -40°C ~ 85°C (TA)
    Mounting Type
    Surface Mount
    Package / Case
    8-SOIC (0.154", 3.90mm Width)
    Supplier Device Package
    8-SOIC
    Base Product Number

    Drawing

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    • Professional service --- strict quality testing before the shipment, and perfect after-sales service after the purchase.
    • Adequate inventory --- With the support of our strong Purchasing team,
    • Fast delivery --- we will ship the goods within 1-3 working days after the payment confirmed.

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    Quality UC2843D8TR Current-Mode PWM Controller with 500kHz Operation 8.4V/7.9V UVLO 50mA Totem-Pole Output Internal Trimmed Bandgap Low Start-Up & Operating Current in SOIC-8 for sale
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