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TL3844BD-8 - Texas Instruments

Description: Switching Controllers HP Current-Mode PWM Controller

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TL3844BD-8 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D0008A
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TL3844BD-8 - Texas Instruments  - 3D model - Small Outline Packages - D0008A
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TL3844BD-8 Details

  • Manufacturer Part Number:

    TL3844BD-8

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Pin Count:

    8

  • Country Of Origin:

    Mexico

  • 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:

    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:

    70 °C

  • Output Current-Max:

    1 A

  • Output Voltage-Max:

    5.1 V

  • Output Voltage-Min:

    4.9 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):

    30 mA

  • Supply Voltage-Max (Vsup):

    30 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • 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

TL3844BD-8 Frequently Asked Questions (FAQs)

  • A good PCB layout for TL3844BD-8 involves keeping the input and output capacitors close to the IC, using a ground plane, and minimizing the length of the feedback loop. TI provides a recommended layout in their application notes and evaluation boards.
  • To ensure stability, ensure that the output capacitor is properly sized, the feedback loop is properly compensated, and the input voltage is within the recommended range. Additionally, adding a small capacitor (e.g., 10nF) between the output and ground can help prevent oscillations.
  • The maximum output current of TL3844BD-8 is dependent on the input voltage and the output voltage. Typically, it can deliver up to 1A of output current, but this can be limited by the thermal performance of the package and the PCB design.
  • TL3844BD-8 is rated for operation up to 125°C, but the maximum junction temperature (TJ) should not exceed 150°C. Ensure that the device is properly heatsinked and the thermal design is adequate for the operating conditions.
  • The output capacitor should be selected based on the output voltage, output current, and ripple requirements. A general rule of thumb is to use a capacitor with a capacitance value of at least 10uF and a voltage rating of at least 1.5 times the output voltage.

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TL3844BD-8 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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