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LM4921ITL/NOPB - Texas Instruments

Description: Low Voltage I2S Stereo Headphone Amplifier and Volume Control

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LM4921ITL/NOPB - Texas Instruments - PCB symbol
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PCB Footprints
LM4921ITL/NOPB - Texas Instruments PCB footprint - BGA - BGA - YZR0020
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3D Models
LM4921ITL/NOPB - Texas Instruments - 3D model - BGA - YZR0020
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LM4921ITL/NOPB Details

  • Manufacturer Part Number:

    LM4921ITL/NOPB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    BGA

  • Pin Count:

    20

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Consumer IC Type:

    CONSUMER CIRCUIT

  • JESD-30 Code:

    R-PBGA-B20

  • JESD-609 Code:

    e1

  • Length:

    2.72 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Power-Nom:

    0.05 W

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    VFBGA

  • Package Equivalence Code:

    BGA20,4X5,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    GRID ARRAY, VERY THIN PROFILE, FINE PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    0.675 mm

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    2.6 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Tin/Silver/Copper (Sn/Ag/Cu)

  • Terminal Form:

    BALL

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    BOTTOM

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

    30

  • Width:

    2.2 mm

LM4921ITL/NOPB Frequently Asked Questions (FAQs)

  • A good PCB layout for the LM4921ITL/NOPB involves keeping the input and output traces short and separate, using a solid ground plane, and placing the decoupling capacitors close to the device. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
  • To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Also, ensure that the output capacitor is properly sized and placed close to the device. Additionally, a small series resistor (e.g., 1-2 ohms) can be added to the output to improve stability.
  • The LM4921ITL/NOPB can handle input voltages up to 12V, but it's recommended to keep the input voltage below 10V to ensure reliable operation and to prevent overheating.
  • The LM4921ITL/NOPB is rated for operation up to 85°C, but it's recommended to derate the output current and input voltage at higher temperatures to ensure reliable operation. Consult the datasheet for thermal derating guidelines.
  • Use a voltage regulator with overvoltage protection (OVP) and overcurrent protection (OCP) features, such as the LM5085 or LM5165. You can also add external protection components, such as a voltage supervisor and a current-sensing resistor, to detect and respond to fault conditions.

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LM4921ITL/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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