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UC2844NG4 - Texas Instruments

Description: Switching Controllers Current-Mode PWM Controller

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UC2844NG4 - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - P (R-PDIP-T8)
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UC2844NG4 - Texas Instruments  - 3D model - Dual-In-Line Packages - P (R-PDIP-T8)
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UC2844NG4 Details

  • Manufacturer Part Number:

    UC2844NG4

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    8

  • Country Of Origin:

    Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    28 V

  • Input Voltage-Min:

    11 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDIP-T8

  • JESD-609 Code:

    e4

  • Length:

    9.59 mm

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    1 A

  • Output Voltage-Nom:

    5 V

  • 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

  • Supply Current-Max (Isup):

    25 mA

  • Supply Voltage-Max (Vsup):

    28 V

  • Supply Voltage-Min (Vsup):

    16 V

  • Surface Mount:

    NO

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

UC2844NG4 Frequently Asked Questions (FAQs)

  • The recommended operating frequency range for UC2844NG4 is 100 kHz to 500 kHz. However, it can operate up to 1 MHz with reduced performance.
  • To ensure stable operation, make sure to follow the recommended layout guidelines, use a stable voltage supply, and decouple the power pins with capacitors. Additionally, ensure that the feedback loop is properly compensated and the output voltage is within the specified range.
  • The maximum output current capability of UC2844NG4 is 4 A. However, the actual output current depends on the input voltage, output voltage, and the design of the external components.
  • Yes, UC2844NG4 can be used for isolated flyback converter designs. However, additional components such as a transformer, optocoupler, and feedback circuitry are required to ensure proper operation and isolation.
  • Selecting the right external components involves considering factors such as input voltage, output voltage, output current, and switching frequency. Use the datasheet and application notes to determine the recommended values for components such as the inductor, capacitor, and resistors.

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UC2844NG4 Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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Image Part Number Model
Part Image UC2844N Texas Instruments

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