Texas Instruments
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LM48556TL/NOPB
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LM48556TL/NOPB

Product Overview

Category

LM48556TL/NOPB belongs to the category of audio power amplifiers.

Use

It is used to amplify audio signals and drive speakers in various electronic devices such as smartphones, tablets, and portable media players.

Characteristics

  • High efficiency
  • Low quiescent current
  • Thermal shutdown protection
  • Short-circuit and thermal protection

Package

The LM48556TL/NOPB comes in a small outline package (DSBGA) for easy integration into compact electronic devices.

Essence

The essence of LM48556TL/NOPB lies in its ability to provide high-quality audio amplification while maintaining low power consumption.

Packaging/Quantity

The LM48556TL/NOPB is typically available in reels containing a specific quantity based on the manufacturer's specifications.

Specifications

  • Power Supply Voltage: 2.7V to 5.5V
  • Output Power: Up to 1.4W per channel
  • Total Harmonic Distortion + Noise (THD+N): 0.1%
  • Shutdown Current: 0.01µA (typical)

Detailed Pin Configuration

The LM48556TL/NOPB features a detailed pin configuration with pins for power supply, input signals, and speaker outputs. The pinout diagram provides a clear understanding of how to connect the amplifier within a circuit.

Functional Features

  • Integrated volume control
  • Differential inputs for noise immunity
  • Click-and-pop suppression
  • Wide output voltage swing

Advantages and Disadvantages

Advantages

  • High efficiency leading to longer battery life in portable devices
  • Integrated volume control simplifies system design
  • Click-and-pop suppression enhances user experience

Disadvantages

  • Limited output power compared to higher wattage amplifiers
  • Requires careful PCB layout due to sensitivity to noise and interference

Working Principles

The LM48556TL/NOPB operates by amplifying the input audio signal and delivering it to the connected speakers with minimal distortion and power loss. It utilizes efficient power management techniques to optimize energy usage.

Detailed Application Field Plans

The LM48556TL/NOPB is well-suited for applications in: - Portable audio devices - Smartphones and tablets - Portable gaming consoles - Bluetooth speakers

Detailed and Complete Alternative Models

  • TPA2012D2 from Texas Instruments
  • MAX98306 from Maxim Integrated
  • NCP2820 from ON Semiconductor

In conclusion, the LM48556TL/NOPB offers a balance of performance and power efficiency, making it an ideal choice for compact electronic devices requiring high-quality audio amplification.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق LM48556TL/NOPB في الحلول التقنية

  1. What is the maximum output power of LM48556TL/NOPB?

    • The maximum output power of LM48556TL/NOPB is 1.1W per channel into an 8Ω load.

  2. What is the input voltage range for LM48556TL/NOPB?

    • The input voltage range for LM48556TL/NOPB is 2.7V to 5.5V.

  3. Does LM48556TL/NOPB require external components for operation?

    • Yes, LM48556TL/NOPB requires a few external components such as capacitors and resistors for proper operation.

  4. What is the typical quiescent current of LM48556TL/NOPB?

    • The typical quiescent current of LM48556TL/NOPB is 2.6mA.

  5. Can LM48556TL/NOPB be used in portable devices?

    • Yes, LM48556TL/NOPB is suitable for use in portable devices due to its low power consumption and small form factor.

  6. What is the thermal shutdown temperature of LM48556TL/NOPB?

    • The thermal shutdown temperature of LM48556TL/NOPB is approximately 150°C.

  7. Is LM48556TL/NOPB suitable for driving headphones?

    • Yes, LM48556TL/NOPB is designed to drive headphones and can deliver high-quality audio output.

  8. What is the typical total harmonic distortion (THD) of LM48556TL/NOPB?

    • The typical THD of LM48556TL/NOPB is 0.1% at 1kHz.

  9. Does LM48556TL/NOPB have built-in short-circuit protection?

    • Yes, LM48556TL/NOPB features built-in short-circuit and thermal overload protection.

  10. What is the package type of LM48556TL/NOPB?

    • LM48556TL/NOPB is available in a small 16-pin WQFN package for space-constrained applications.