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LP3944ISQ/NOPB - Texas Instruments

Description: RGB/White/Blue 8-LED Fun Light Driver

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PCB Footprints
LP3944ISQ/NOPB - Texas Instruments PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - RTW0024A WQFN
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3D Models
LP3944ISQ/NOPB - Texas Instruments  - 3D model - Quad Flat No-Lead - RTW0024A WQFN
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LP3944ISQ/NOPB Details

  • Manufacturer Part Number:

    LP3944ISQ/NOPB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    WQFN-24

  • 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-XQCC-N24

  • JESD-609 Code:

    e3

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    3

  • Multiplexed Display Capability:

    NO

  • Number of Channels:

    8

  • Number of Functions:

    1

  • Number of Segments:

    8

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    OPEN-DRAIN

  • Output Polarity:

    TRUE

  • Package Body Material:

    UNSPECIFIED

  • 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:

    0.55 mA

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    2.3 V

  • Supply Voltage-Nom:

    5 V

  • Supply Voltage1-Max:

    5.5 V

  • Supply Voltage1-Min:

    2.3 V

  • Supply Voltage1-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    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:

    0.4 MHz

LP3944ISQ/NOPB Frequently Asked Questions (FAQs)

  • A good thermal layout is crucial for the LP3944ISQ/NOPB. TI recommends a 2-layer or 4-layer PCB with a solid ground plane on the bottom layer, and a thermal relief pattern on the top layer to reduce thermal impedance.
  • To ensure the device operates within the recommended operating conditions, monitor the input voltage, output voltage, and output current. Also, ensure the device is operated within the recommended temperature range of -40°C to 125°C.
  • TI recommends using a low-ESR ceramic capacitor with a value of 10uF to 22uF, and a voltage rating of 6.3V or higher, placed as close to the VIN pin as possible.
  • To minimize EMI, use a shielded inductor, keep the switching node (SW) as short as possible, and use a common-mode choke or ferrite bead on the output. Also, ensure good PCB layout practices, such as separating analog and digital grounds.
  • TI recommends using a low-ESR ceramic capacitor with a value of 10uF to 22uF, and a voltage rating of 2.5V or higher, placed as close to the VOUT pin as possible.

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LP3944ISQ/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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