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UC1843AMDREP - Texas Instruments

Description: Enhanced Product Current-Mode Pwm Controller

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UC1843AMDREP - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - 8-Pin SOIC-ren5
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UC1843AMDREP - Texas Instruments  - 3D model - Small Outline Packages - 8-Pin SOIC-ren5
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UC1843AMDREP Details

  • Manufacturer Part Number:

    UC1843AMDREP

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    8

  • Country Of Origin:

    Malaysia

  • 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:

    12 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • 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:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    17 mA

  • Supply Voltage-Max (Vsup):

    25 V

  • Supply Voltage-Min (Vsup):

    12 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    3.9 mm

UC1843AMDREP Frequently Asked Questions (FAQs)

  • The recommended operating voltage range for the UC1843AMDREP is 12V to 35V, with a typical operating voltage of 15V.
  • To ensure stable operation, ensure that the input voltage is within the recommended range, decouple the input with a 10uF capacitor, and use a minimum of 100nF capacitor on the output. Also, ensure that the layout is done with proper grounding and shielding to minimize noise and EMI.
  • The UC1843AMDREP can deliver up to 3A of output current, but it's recommended to derate the output current based on the ambient temperature and the desired reliability of the system.
  • The output voltage of the UC1843AMDREP can be adjusted by using a resistive divider network between the output and the feedback pin. The ratio of the resistors determines the output voltage, and the recommended ratio is 1:1 for a 5V output.
  • The compensation pin is used to compensate for the output voltage droop during load transients. A capacitor (typically 10nF to 100nF) is connected between the compensation pin and ground to provide additional stability to the output voltage.

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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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