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LM3549SQE/NOPB - Texas Instruments

Description: High Power Sequential LED Driver

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PCB Footprints
LM3549SQE/NOPB - Texas Instruments PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - RTW0024A WQFN
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3D Models
LM3549SQE/NOPB - Texas Instruments  - 3D model - Quad Flat No-Lead - RTW0024A WQFN
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LM3549SQE/NOPB Details

  • Manufacturer Part Number:

    LM3549SQE/NOPB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Data Input Mode:

    SERIAL

  • Input Characteristics:

    STANDARD

  • Interface IC Type:

    LED DISPLAY DRIVER

  • JESD-30 Code:

    S-PQCC-N24

  • JESD-609 Code:

    e3

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    1

  • Multiplexed Display Capability:

    NO

  • Number of Channels:

    3

  • Number of Functions:

    1

  • Number of Segments:

    3

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -30 °C

  • Output Characteristics:

    CONSTANT-CURRENT

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC24,.16SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    0.8 mm

  • Supply Current-Max:

    3 mA

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    2.7 V

  • Supply Voltage-Nom:

    3.6 V

  • Supply Voltage1-Max:

    5.5 V

  • Supply Voltage1-Min:

    2.7 V

  • Supply Voltage1-Nom:

    3.6 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    4 mm

  • fmax-Min:

    20 MHz

LM3549SQE/NOPB Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LM3549SQE/NOPB is 42V, but it's recommended to keep it below 40V for reliable operation.
  • To ensure stability, it's essential to use a minimum output capacitance of 10uF, and a maximum ESR of 1 ohm. Additionally, the output capacitor should be placed as close to the output pin as possible.
  • The maximum output current that the LM3549SQE/NOPB can deliver is 2A, but it's recommended to keep it below 1.5A for reliable operation and to prevent overheating.
  • The output voltage of the LM3549SQE/NOPB can be calculated using the formula: Vout = 1.23 * (1 + R2/R1), where R1 and R2 are the resistors connected to the feedback pin.
  • The thermal shutdown temperature of the LM3549SQE/NOPB is 150°C. The device will shut down when the junction temperature exceeds this value, and will restart when the temperature drops below 130°C.

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LM3549SQE/NOPB 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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