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UC2844BN - STMicroelectronics

Description: UC2844BN, PWM Current Mode Controller, 1 A Boost, Flyback, 500 kHz 8-Pin PDIP

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UC2844BN - STMicroelectronics PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - Minidip
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UC2844BN Details

  • Manufacturer Part Number:

    UC2844BN

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Package Description:

    MINI, DIP-8

  • Pin Count:

    8

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    14 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    6

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    30 V

  • Input Voltage-Min:

    11 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDIP-T8

  • JESD-609 Code:

    e3

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -25 °C

  • Output Current-Max:

    1 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP8,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.08 mm

  • Surface Mount:

    NO

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL EXTENDED

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

UC2844BN Frequently Asked Questions (FAQs)

  • The recommended input voltage range for the UC2844BN is 12V to 35V, although it can operate up to 40V with reduced performance.
  • The inductor value depends on the output voltage, output current, and switching frequency. A good starting point is to use the inductor value calculation formula provided in the datasheet, and then adjust based on the specific application requirements.
  • The bootstrap capacitor (CBOOT) is used to generate the high-side gate drive voltage for the power MOSFET. It is charged through the internal diode (D1) and the external resistor (RBOOT) when the low-side MOSFET is on.
  • Ensure good thermal design, including a suitable heat sink, thermal interface material, and adequate airflow. Monitor the device temperature using a thermocouple or thermal sensor, and adjust the design as needed to stay within the recommended operating junction temperature range of -40°C to 150°C.
  • The maximum output current capability of the UC2844BN depends on the input voltage, output voltage, and inductor value. Typically, it can deliver up to 4A of output current, but this can be limited by the thermal design and the power MOSFET's current rating.

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UC2844BN Overview

Use the download button to access the UC2844BN schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like UC284, or try a keyword search, such as Switching Regulator or Controllers

About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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UC2844BN Alternates

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Part Image UC2844AM Microsemi Corporation (now Microchip)

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDIP8