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LP3944ISQX/NOPB - Texas Instruments

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

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PCB Footprints
LP3944ISQX/NOPB - Texas Instruments PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - RTW0024
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3D Models
LP3944ISQX/NOPB - Texas Instruments  - 3D model - Quad Flat No-Lead - RTW0024
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LP3944ISQX/NOPB Details

  • Manufacturer Part Number:

    LP3944ISQX/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-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

LP3944ISQX/NOPB Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a 2-layer or 4-layer PCB with a solid ground plane and a thermal relief pattern on the exposed pad to achieve optimal thermal performance.
  • The LP3944ISQX/NOPB has a power-on reset (POR) circuit that ensures the device is properly powered up and configured during startup. However, it's recommended to add an external capacitor to the EN pin to ensure a clean power-up sequence.
  • The LP3944ISQX/NOPB can drive up to 10nF of capacitive load on the output pins. Exceeding this limit may affect the device's stability and performance.
  • To troubleshoot I2C interface issues, use a logic analyzer or oscilloscope to verify the clock and data signals. Ensure that the I2C bus is properly terminated and that the device is properly addressed and configured.
  • The recommended operating temperature range for the LP3944ISQX/NOPB is -40°C to 85°C. However, the device can operate up to 125°C with reduced performance and reliability.

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LP3944ISQX/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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