Texas Instruments
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LM4910LQ/NOPB
বিস্তারিত দেখুন ডেটাশিট

LM4910LQ/NOPB

Product Overview

Category

The LM4910LQ/NOPB belongs to the category of audio power amplifiers.

Use

It is commonly used to amplify audio signals in various electronic devices such as smartphones, tablets, portable media players, and other consumer electronics.

Characteristics

  • High efficiency
  • Low distortion
  • Small package size
  • Low quiescent current

Package

The LM4910LQ/NOPB is available in a small outline package (SOIC) with a specified thermal impedance for enhanced heat dissipation.

Essence

The essence of LM4910LQ/NOPB lies in its ability to provide high-quality audio amplification in a compact and efficient package.

Packaging/Quantity

The LM4910LQ/NOPB is typically packaged in reels and is available in quantities suitable for mass production.

Specifications

  • Power Supply Voltage: 2.7V to 5.5V
  • Output Power: 1.25W at 3.6V, 10% THD+N, 8Ω Load
  • Quiescent Current: 4mA
  • Shutdown Current: 0.01μA
  • Total Harmonic Distortion + Noise (THD+N): 0.15% at 1kHz, 1.25W, 8Ω Load

Detailed Pin Configuration

The LM4910LQ/NOPB has a standard pin configuration with pins designated for power supply, input signal, output load, and control functions.

Functional Features

  • Integrated shutdown control
  • Thermal shutdown protection
  • Short-circuit and over-temperature protection
  • Low quiescent current in shutdown mode

Advantages

  • High efficiency and low distortion
  • Small package size for space-constrained designs
  • Wide operating voltage range
  • Integrated protection features for reliability

Disadvantages

  • Limited output power compared to higher wattage amplifiers
  • May require additional circuitry for specific applications

Working Principles

The LM4910LQ/NOPB operates by amplifying the input audio signal using an internal amplifier stage and delivering the amplified signal to the connected load (e.g., speaker or headphones). It utilizes low quiescent current and efficient power management techniques to optimize performance and power consumption.

Detailed Application Field Plans

The LM4910LQ/NOPB is well-suited for use in portable electronic devices, including: - Smartphones - Tablets - Portable media players - Handheld gaming devices - Bluetooth speakers

Detailed and Complete Alternative Models

  • LM4863: Higher power output audio amplifier
  • LM4880: Stereo audio amplifier with differential inputs
  • LM4950: Class D audio power amplifier with integrated boost converter

In conclusion, the LM4910LQ/NOPB is a versatile audio power amplifier that offers high efficiency, low distortion, and compact packaging, making it an ideal choice for various portable electronic devices.

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প্রযুক্তিগত সমাধানে LM4910LQ/NOPB এর প্রয়োগ সম্পর্কিত 10টি সাধারণ প্রশ্ন ও উত্তর তালিকাভুক্ত করুন

  1. What is the maximum input voltage for LM4910LQ/NOPB?
    - The maximum input voltage for LM4910LQ/NOPB is 5.5V.

  2. What is the typical output power of LM4910LQ/NOPB?
    - The typical output power of LM4910LQ/NOPB is 1W into 8Ω at 5V.

  3. Can LM4910LQ/NOPB operate from a single supply voltage?
    - Yes, LM4910LQ/NOPB can operate from a single supply voltage ranging from 2.7V to 5.5V.

  4. What is the quiescent current consumption of LM4910LQ/NOPB?
    - The quiescent current consumption of LM4910LQ/NOPB is typically 4mA.

  5. Does LM4910LQ/NOPB have built-in thermal shutdown protection?
    - Yes, LM4910LQ/NOPB has built-in thermal shutdown protection to prevent overheating.

  6. What is the typical total harmonic distortion (THD) of LM4910LQ/NOPB?
    - The typical THD of LM4910LQ/NOPB is 0.2% at 1kHz and 10mW.

  7. Can LM4910LQ/NOPB be used in portable audio applications?
    - Yes, LM4910LQ/NOPB is suitable for use in portable audio applications due to its low power consumption and small package size.

  8. What is the recommended operating temperature range for LM4910LQ/NOPB?
    - The recommended operating temperature range for LM4910LQ/NOPB is -40°C to 85°C.

  9. Does LM4910LQ/NOPB require external compensation components?
    - No, LM4910LQ/NOPB does not require external compensation components, simplifying the design process.

  10. Is LM4910LQ/NOPB available in a lead-free package?
    - Yes, LM4910LQ/NOPB is available in a lead-free package, making it compliant with environmental regulations.