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UC1844AMDREP - Texas Instruments

Description: Enhanced Product Current Mode Pwm Controller

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UC1844AMDREP - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D0008A
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UC1844AMDREP - Texas Instruments  - 3D model - Small Outline Packages - D0008A
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UC1844AMDREP Details

  • Manufacturer Part Number:

    UC1844AMDREP

  • 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:

    30 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:

    SOP14,.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):

    30 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

UC1844AMDREP Frequently Asked Questions (FAQs)

  • The recommended operating voltage range for the UC1844AMDREP is 12V to 35V, with a typical operating voltage of 15V.
  • To ensure stability and oscillation at the desired frequency, it's essential to follow the recommended component values and PCB layout guidelines provided in the datasheet, and to use a suitable output filter to prevent oscillation.
  • The UC1844AMDREP can deliver a maximum output current of 1A, but this may vary depending on the specific application and operating conditions.
  • To protect the UC1844AMDREP from overvoltage and undervoltage conditions, it's recommended to use voltage regulators, such as the TLV703 or TLV704, and to add overvoltage protection (OVP) and undervoltage protection (UVP) circuits to the design.
  • The soft-start pin (SS) on the UC1844AMDREP is used to control the output voltage ramp-up time during power-up, preventing excessive inrush currents and ensuring a smooth startup.

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UC1844AMDREP 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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