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UC1844J - Texas Instruments

Description: Texas Instruments UC1844J, PWM Current Mode Controller, 1 A, 500 kHz, 2.5 V, 8-Pin CDIP

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UC1844J - Texas Instruments PCB footprint - Ceramic Dual-In-Line Packages - Ceramic Dual-In-Line Packages - JG (R-GDIP-T8)_2021
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3D Models
UC1844J - Texas Instruments  - 3D model - Ceramic Dual-In-Line Packages - JG (R-GDIP-T8)_2021
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UC1844J Details

  • Manufacturer Part Number:

    UC1844J

  • 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:

    30 V

  • Input Voltage-Min:

    11 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-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):

    30 V

  • Supply Voltage-Min (Vsup):

    12 V

  • Surface Mount:

    NO

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BICMOS

  • 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

UC1844J Frequently Asked Questions (FAQs)

  • The recommended operating voltage range for the UC1844J is 15V to 40V.
  • To ensure stability and oscillation at the desired frequency, make sure to follow the recommended component values and PCB layout guidelines, and use a stable voltage source. Also, ensure that the feedback loop is properly compensated.
  • The maximum output current capability of the UC1844J is 1A, but it can be increased by using an external transistor or a current doubler configuration.
  • To protect the UC1844J from overvoltage and undervoltage conditions, use a voltage regulator or a voltage supervisor to regulate the input voltage and prevent damage to the device.
  • The UC1844J is rated for operation up to 125°C, but it's recommended to derate the device for high-temperature operation. Consult the datasheet for thermal derating guidelines.

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UC1844J 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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Part Image 5962-8670403VPA Texas Instruments

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For a full list of alternate parts for UC1844J, check out Findchips.com