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Texas Instruments UCC28950PW

Part Number:

UCC28950PW

Manufacturer:

Texas Instruments

Ventron No:

3752001-UCC28950PW

Description:

Green phase-shifted full-bridge controller with Synchronous Rectification control

Datasheet:

UCC28950PW

Quantity:

- +
Total Price: $16.83

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Delivery:

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Unit Price

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  • 1

    $16.8344

    $16.83

  • 200

    $6.5150

    $1303.00

  • 500

    $6.2862

    $3143.10

  • 1000

    $6.1726

    $6172.60

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Part Pictures

  • UCC28950PW Detail Images

Part Overview

Description
The UCC28950 is an enhanced phase-shifted controller that offers advanced control of full-bridge converters and active control of synchronous rectifier output stages. It features programmable delays for ZVS operation, dynamic synchronous rectifier on/off control, and adaptive delay. The controller supports average or peak current mode control, voltage mode control, and naturally handles pre-biased startup with DCM mode.

Features
Enhanced wide-range resonant zero voltage switching (ZVS) capability
Direct synchronous rectifier (SR) control
Light-load efficiency management including burst mode operation
Discontinuous conduction mode (DCM), dynamic SR on/off control with programmable threshold
Programmable adaptive delay
Average or peak current mode control with programmable slope compensation and voltage mode control
Naturally handles pre-biased startup with DCM mode
Closed loop soft start and enable function
Programmable switching frequency up to 1MHz with bi-directional synchronization
( /-3%) cycle-by-cycle current limit protection with hiccup mode support
150-μA start-up current
Voo under voltage lockout
Wide temperature range (-40°C to 125°C)

Applications
Phase-shifted full-bridge converters
Server power supplies
Datacom, telecom, and wireless base-station power
Industrial power systems
High-density power architectures
Solar inverters
Electric vehicles

Specifications

Texas Instruments UCC28950PW technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments UCC28950PW.

  • Factory Lead Time
    6 Weeks
  • Lifecycle Status
    ACTIVE (Last Updated: 3 days ago)
  • Mounting Type

    Mounting Type refers to the method by which an electronic component is attached to a printed circuit board (PCB) or other surface. Common mounting types include: * Through-hole: Component leads are inserted into holes in the PCB and soldered on the other side. * Surface-mount: Component is placed on the surface of the PCB and soldered in place. * Press-fit: Component is pressed into place on the PCB without soldering. * Socket: Component is inserted into a socket on the PCB, allowing for easy replacement. The mounting type is determined by factors such as the component's size, shape, and power requirements.

    Surface Mount
  • Package / Case

    Package / Case refers to the physical housing or enclosure that encapsulates an electronic component. It provides protection, facilitates handling, and enables electrical connections. The package type determines the component's size, shape, pin configuration, and mounting options. Common package types include DIP (dual in-line package), SOIC (small outline integrated circuit), and BGA (ball grid array). The package also influences the component's thermal and electrical performance.

    24-TSSOP (0.173, 4.40mm Width)
  • Surface Mount
    YES
  • Number of Pins

    Number of Pins: Indicates the number of electrical connections available on the component. These pins are used to connect the component to other components or circuits on a printed circuit board (PCB). The number of pins determines the functionality and connectivity options of the component. It is important to ensure that the component has the correct number of pins for the intended application.

    24
  • Operating Temperature

    Operating Temperature is the range of temperatures at which an electronic component can function properly. It is typically specified in degrees Celsius (°C) and indicates the minimum and maximum temperatures at which the component can operate without experiencing damage or degradation. Operating Temperature is an important parameter to consider when designing electronic circuits, as it ensures that the components will function reliably in the intended operating environment.

    -40°C~125°C TJ
  • Packaging
    Tube
  • JESD-609 Code
    e4
  • Pbfree Code
    yes
  • Part Status

    Part Status is an electronic component parameter that indicates the availability and production status of a component. It is typically used to inform customers about the availability of a component, whether it is in production, end-of-life, or obsolete. Part Status can also provide information about any restrictions or limitations on the component's use, such as whether it is only available for certain applications or if it has been discontinued.

    Active
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a measure of the susceptibility of a surface mount electronic component to moisture-induced damage during soldering. It is classified into six levels, from 1 (least sensitive) to 6 (most sensitive). MSL is determined by the materials used in the component's construction, including the solderability of its terminals and the presence of moisture-absorbing materials. Components with higher MSL ratings require more stringent handling and storage conditions to prevent moisture absorption and subsequent damage during soldering.

    1 (Unlimited)
  • Number of Terminations
    24
  • ECCN Code
    EAR99
  • Terminal Finish
    Nickel/Palladium/Gold (Ni/Pd/Au)
  • Additional Feature
    ALSO OPERATES IN CURRENT MODE AND AVERAGE CURRENT MODE AND PWM CONTROL TECHNIQUE ALSO POSSIBLE
  • Subcategory
    Switching Regulator or Controllers
  • Technology

    Technology, in the context of electronic components, refers to the specific manufacturing process and materials used to create the component. It encompasses the semiconductor fabrication techniques, such as the type of transistor used (e.g., MOSFET, BJT), the gate oxide thickness, and the interconnect materials. Technology also includes the packaging type, such as surface mount or through-hole, and the leadframe or substrate material. The technology used impacts the component's performance characteristics, such as speed, power consumption, and reliability.

    BICMOS
  • Terminal Position
    DUAL
  • Terminal Form
    GULL WING
  • Peak Reflow Temperature (Cel)
    260
  • Frequency

    Frequency, in the context of electronic components, refers to the rate at which an alternating current or voltage changes direction per second. It is measured in Hertz (Hz), which represents one cycle per second. Frequency is a crucial parameter for various electronic components, such as capacitors, inductors, and resonators. It determines the component's ability to store or release energy, filter signals, and resonate at specific frequencies. Understanding the frequency characteristics of electronic components is essential for designing and optimizing electronic circuits.

    1MHz
  • Base Part Number
    UCC28950
  • Function

    Function refers to the primary purpose or role of an electronic component within a circuit. It describes the specific task or operation that the component is designed to perform. For example, a resistor's function is to limit current flow, a capacitor's function is to store electrical energy, and a transistor's function is to amplify or switch signals. Understanding the function of a component is crucial for selecting the appropriate component for a particular application and ensuring its proper operation within the circuit.

    Step-Up/Step-Down
  • Number of Outputs

    Number of Outputs refers to the number of independent output signals or channels that an electronic component can provide. It indicates the capability of the component to drive multiple external devices or circuits simultaneously. A higher number of outputs allows for greater flexibility and connectivity in electronic systems.

    6
  • Output Voltage

    Output Voltage is the voltage level produced by an electronic component when it is operating. It is typically measured in volts (V) and can be either positive or negative. The output voltage of a component is determined by its design and the input voltage applied to it. For example, a voltage regulator will produce a fixed output voltage regardless of the input voltage, while an amplifier will produce an output voltage that is proportional to the input voltage.

    5V
  • Output Type

    Output type refers to the type of signal or power that an electronic component can produce. It can be analog or digital, AC or DC, and can vary in voltage, current, or power levels. The output type is determined by the component's design and is crucial for matching it with other components in a circuit. Understanding the output type ensures proper signal processing, power delivery, and overall system functionality.

    Transistor Driver
  • Operating Supply Voltage
    12V
  • Input Voltage-Nom
    12V
  • Analog IC - Other Type
    SWITCHING CONTROLLER
  • Output Configuration

    Output Configuration refers to the arrangement of output terminals or pins on an electronic component. It specifies the number, type, and arrangement of these terminals, allowing for various connection options. This parameter is crucial for determining the component's compatibility with other devices and ensuring proper signal flow within a circuit.

    Positive
  • Output Current

    Output Current is the maximum amount of current that an electronic component can deliver to a load without exceeding its specified operating limits. It is typically measured in amperes (A) or milliamperes (mA). Output Current is a critical parameter for selecting electronic components, as it determines the amount of power that the component can provide to a load.

    20mA
  • Voltage - Supply (Vcc/Vdd)
    8V~17V
  • Max Supply Current
    10mA
  • Output Power

    Output Power is a measure of the electrical power delivered by an electronic component to a load. It is typically expressed in watts (W) or milliwatts (mW). The output power of a component is determined by its design and the voltage and current applied to it. Output power is an important parameter for many electronic components, such as amplifiers, power supplies, and transmitters. It is used to determine the component's efficiency and to ensure that it can provide enough power to drive the load.

    1.12W
  • Control Features
    Dead Time Control, Enable, Frequency Control, Soft Start
  • Topology
    Full-Bridge
  • Control Mode
    VOLTAGE-MODE
  • Frequency - Switching
    50kHz~1MHz
  • Control Technique
    PHASE-SHIFT CONTROL
  • Synchronous Rectifier
    Yes
  • Nominal Input Voltage
    3.6V
  • Switcher Configuration
    PHASE-SHIFT
  • Max Duty Cycle
    97 %
  • Duty Cycle (Max)
    95%
  • Output Phases
    1
  • Height

    Height, in the context of electronic components, refers to the vertical dimension of the component. It is typically measured in millimeters (mm) or inches (in). Height is an important parameter to consider when designing and assembling electronic circuits, as it affects the overall size and form factor of the device. Components with a smaller height are often preferred for applications where space is limited, such as in portable devices or embedded systems.

    1.2mm
  • Length

    Length, in the context of electronic components, refers to the physical dimension of a component along its longest axis. It is typically measured in millimeters (mm) or inches (in). Length is a crucial parameter for determining the physical size and space requirements of a component on a printed circuit board (PCB) or other assembly. It also affects the component's electrical characteristics, such as inductance and capacitance, which can be influenced by the length of conductors or traces within the component.

    7.8mm
  • Width
    4.4mm
  • Thickness

    Thickness, in the context of electronic components, refers to the vertical distance between two opposing surfaces of a component. It is typically measured in millimeters (mm) or inches (in). Thickness is a crucial parameter that affects the component's physical dimensions, weight, and performance characteristics. It influences factors such as heat dissipation, electrical insulation, and mechanical stability. Thinner components generally offer better heat dissipation and space efficiency, while thicker components may provide enhanced durability and structural integrity.

    1mm
  • Radiation Hardening
    No
  • REACH SVHC
    No SVHC
  • RoHS Status
    ROHS3 Compliant
  • Lead Free
    Lead Free

Certification

  • ISO 9001
  • ISO 13485
  • ISO 45001
  • ASA
  • ESD
  • DUNS
  • SMTA
  • ROHS

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