Texas Instruments
L'image peut être une représentation.
Voir les spécifications pour les détails du produit.
LM4879IBPX
Voir les détails DataSheets

LM4879IBPX

Product Overview

Category: Integrated Circuit
Use: Audio Amplifier
Characteristics: Low voltage, low power consumption
Package: 14-pin TSSOP
Essence: High-quality audio amplification
Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Output Power: 3W (typical) into 3Ω at 5V
  • Total Harmonic Distortion (THD): 0.1% (typical) at 1W, 1kHz
  • Quiescent Current: 4mA (typical)
  • Operating Voltage Range: 2.7V to 5.5V
  • Shutdown Current: 0.6µA (typical)

Detailed Pin Configuration

  1. Shutdown/Mute
  2. Input-
  3. Input+
  4. GND
  5. VDD
  6. Bypass
  7. Gain Select
  8. Output
  9. Bypass
  10. Gain Select
  11. GND
  12. Bypass
  13. Bypass
  14. Bypass

Functional Features

  • Low voltage operation
  • Thermal shutdown protection
  • Short-circuit and thermal protection
  • Superior click and pop suppression

Advantages and Disadvantages

Advantages: - Low power consumption - Small package size - High-quality audio amplification

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for full functionality

Working Principles

The LM4879IBPX is a mono bridged audio amplifier designed to deliver high-quality sound while operating at low voltages. It utilizes a bridge-tied load (BTL) configuration to achieve efficient power usage and minimize distortion.

Detailed Application Field Plans

The LM4879IBPX is suitable for various portable and battery-powered audio applications, including: - Mobile devices - Portable speakers - Headphone amplifiers - Personal media players

Detailed and Complete Alternative Models

  1. TPA2012D2 - 2.1W Stereo Class-D Audio Power Amplifier
  2. MAX98306 - 3.2W Mono Class D Audio Power Amplifier
  3. TDA7052A - 1W BTL Mono Audio Amplifier

In conclusion, the LM4879IBPX offers a compact and efficient solution for low-voltage audio amplification, making it ideal for portable and battery-powered devices requiring high-quality sound reproduction.

(Word count: 314)

Énumérez 10 questions et réponses courantes liées à l'application de LM4879IBPX dans les solutions techniques

  1. What is the LM4879IBPX?

    • The LM4879IBPX is a mono, bridge-tied load (BTL) audio amplifier designed for use in portable electronic devices.

  2. What is the typical application of the LM4879IBPX?

    • The LM4879IBPX is commonly used to drive small speakers or headphones in applications such as mobile phones, tablets, and portable media players.

  3. What is the maximum output power of the LM4879IBPX?

    • The LM4879IBPX can deliver up to 1.1W of continuous output power into an 8Ω load with a 5V power supply.

  4. What is the input voltage range for the LM4879IBPX?

    • The LM4879IBPX has an input voltage range of 2.7V to 5.5V, making it suitable for use with various power sources in portable devices.

  5. Does the LM4879IBPX require external components for operation?

    • Yes, the LM4879IBPX requires a few external components such as capacitors and resistors to set the gain and filter frequencies.

  6. Can the LM4879IBPX operate from a single supply voltage?

    • Yes, the LM4879IBPX is designed to operate from a single supply voltage, simplifying its integration into portable devices.

  7. What are the key features of the LM4879IBPX?

    • The LM4879IBPX features low quiescent current, thermal shutdown protection, and short-circuit and thermal overload protection, making it robust for portable applications.

  8. Is the LM4879IBPX suitable for battery-powered devices?

    • Yes, the LM4879IBPX's low quiescent current and wide input voltage range make it well-suited for battery-powered devices.

  9. What is the typical efficiency of the LM4879IBPX?

    • The LM4879IBPX offers high efficiency, making it ideal for maximizing battery life in portable applications.

  10. Are there any application notes or reference designs available for the LM4879IBPX?

    • Yes, Texas Instruments provides application notes and reference designs to assist with the implementation of the LM4879IBPX in various technical solutions.