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UC1843AMDREPG4 - Texas Instruments

Description: CURRENT MODE PWM CONTROLLER

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UC1843AMDREPG4 - Texas Instruments PCB footprint - Other - Other - SOIC127P600X175-8N
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UC1843AMDREPG4 - Texas Instruments  - 3D model - Other - SOIC127P600X175-8N
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UC1843AMDREPG4 Details

  • Manufacturer Part Number:

    UC1843AMDREPG4

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    SOIC-8

  • Pin Count:

    8

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • 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

  • Surface Mount:

    YES

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

    NICKEL PALLADIUM GOLD

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

UC1843AMDREPG4 Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended PCB layout in the datasheet, but it's also important to follow general guidelines for switching regulator layout, such as keeping the power traces short and wide, and using a solid ground plane to reduce noise and EMI.
  • The UC1843AMDREPG4 datasheet provides guidelines for inductor selection, including the recommended inductance value and saturation current. Additionally, consider the inductor's physical size, core material, and DC resistance when making a selection.
  • The UC1843AMDREPG4 is rated for operation from -40°C to 125°C, but the maximum ambient temperature range may be limited by the specific application and the thermal design of the system.
  • The UC1843AMDREPG4 is a commercial-grade device, but Texas Instruments offers other versions of the UC1843 with enhanced reliability and automotive-grade qualifications, such as the UC1843QMREPG4 or UC1843AQMREPG4.
  • Common issues with the UC1843AMDREPG4 can often be traced to poor PCB layout, incorrect component selection, or inadequate decoupling. Use an oscilloscope to observe the output voltage and current waveforms, and consult the datasheet and application notes for troubleshooting guidance.

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UC1843AMDREPG4 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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