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UC1843AJ - Texas Instruments

Description: Off Line Current-Mode PWM Controller

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UC1843AJ - Texas Instruments PCB footprint - Ceramic Dual-In-Line Packages - Ceramic Dual-In-Line Packages - JG (R-GDIP-T8)_2021
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UC1843AJ - Texas Instruments  - 3D model - Ceramic Dual-In-Line Packages - JG (R-GDIP-T8)_2021
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UC1843AJ Details

  • Manufacturer Part Number:

    UC1843AJ

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    25 V

  • Input Voltage-Min:

    8.2 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-GDIP-T8

  • JESD-609 Code:

    e0

  • Length:

    9.58 mm

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Output Current-Max:

    1 A

  • Output Voltage-Max:

    5.05 V

  • Output Voltage-Min:

    4.95 V

  • Output Voltage-Nom:

    5 V

  • Package Body Material:

    CERAMIC, GLASS-SEALED

  • 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):

    25 V

  • Supply Voltage-Min (Vsup):

    12 V

  • Supply Voltage-Nom (Vsup):

    11 V

  • Surface Mount:

    NO

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

UC1843AJ Frequently Asked Questions (FAQs)

  • The recommended operating voltage range for the UC1843AJ is 15V to 40V, although it can operate up to 45V with reduced performance.
  • To ensure stable operation, make sure to decouple the power supply with a 10uF capacitor, use a low-ESR output capacitor, and keep the layout compact to minimize noise and radiation.
  • The maximum output current of the UC1843AJ is 3A, but it can be limited by the external components and the thermal design of the system.
  • Choose external components based on the specific application requirements, such as output voltage, output current, and switching frequency. Refer to the datasheet and application notes for guidance on component selection.
  • The soft-start pin (SS) allows for a controlled startup of the converter, reducing inrush current and electromagnetic interference (EMI).

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UC1843AJ 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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For a full list of alternate parts for UC1843AJ, check out Findchips.com