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UC2843AQD8 - Texas Instruments

Description: Automotive Catalog Current-Mode PWM Controller

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UC2843AQD8 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D0008A
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UC2843AQD8 - Texas Instruments  - 3D model - Small Outline Packages - D0008A
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UC2843AQD8 Details

  • Manufacturer Part Number:

    UC2843AQD8

  • 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

  • Date Of Intro:

    1999-11-03

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    28 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:

    -40 °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):

    28 V

  • Supply Voltage-Min (Vsup):

    8.4 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    AUTOMOTIVE

  • 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

UC2843AQD8 Frequently Asked Questions (FAQs)

  • The UC2843AQD8 is a high-frequency switching regulator, and proper layout and placement are crucial for its operation. TI recommends a 4-layer PCB with a solid ground plane, and placing the IC close to the input capacitors and inductors to minimize noise and EMI.
  • The inductor selection depends on the output current, switching frequency, and desired ripple current. TI recommends using an inductor with a high saturation current, low DCR, and a suitable core material. The datasheet provides a list of recommended inductors, and TI's Power Stage Designer tool can also help with inductor selection.
  • The UC2843AQD8 has an absolute maximum input voltage rating of 18V, but the recommended maximum operating input voltage is 15V to ensure reliable operation and minimize stress on the internal components.
  • The UC2843AQD8 requires a type-III compensation network to ensure stability. TI provides a compensation calculator tool and application notes that guide the design of the compensation network based on the specific application requirements.
  • The UC2843AQD8 can deliver up to 3A of output current, but the actual output current capability depends on the input voltage, output voltage, and thermal design of the system.

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UC2843AQD8 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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