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LP8543SQ/NOPB - Texas Instruments

Description: SMBus/I2C Controlled WLED Driver for Medium Sized LCD Backlight

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LP8543SQ/NOPB - Texas Instruments - PCB symbol
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PCB Footprints
LP8543SQ/NOPB - Texas Instruments PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - 25 lead
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LP8543SQ/NOPB - Texas Instruments - 3D model - Quad Flat No-Lead - 25 lead
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LP8543SQ/NOPB Details

  • Manufacturer Part Number:

    LP8543SQ/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:

    7

  • Number of Functions:

    1

  • Number of Segments:

    70

  • 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:

    0.001 mA

  • Supply Voltage-Max:

    22 V

  • Supply Voltage-Min:

    5.5 V

  • Supply Voltage-Nom:

    12 V

  • Supply Voltage1-Max:

    22 V

  • Supply Voltage1-Min:

    5.5 V

  • Supply Voltage1-Nom:

    12 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:

    1.25 MHz

LP8543SQ/NOPB Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended PCB layout in the application note SLVAE04, which includes guidelines for component placement, trace routing, and thermal management to ensure optimal performance and minimize noise.
  • The output capacitor selection depends on the output voltage, output current, and desired ripple voltage. A general guideline is to use a capacitor with a minimum capacitance of 10uF and a maximum ESR of 100mΩ. TI also provides a capacitor selection tool to help with this process.
  • Although the datasheet specifies a maximum input voltage of 5.5V, the device can handle up to 6V for short durations (e.g., during power-up or voltage transients). However, sustained operation above 5.5V may reduce the device's reliability and lifespan.
  • The LP8543SQ/NOPB is rated for operation up to 125°C, but the device's performance and reliability may degrade at higher temperatures. It's essential to follow the recommended thermal management guidelines and consider derating the device's output current and voltage at elevated temperatures.
  • TI provides a troubleshooting guide in the application note SLVAE03, which covers common issues and their solutions. Additionally, engineers can use simulation tools like TI's WEBENCH or SPICE models to analyze and debug their designs.

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LP8543SQ/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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