STMicroelectronics
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TDA7491LP13TR
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TDA7491LP13TR

Introduction

The TDA7491LP13TR is a versatile audio amplifier integrated circuit designed for use in various audio applications. This entry provides an overview of the product, including its category, use, characteristics, package, essence, packaging/quantity, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Product Overview

  • Category: Audio Amplifier IC
  • Use: The TDA7491LP13TR is used to amplify audio signals in a wide range of applications, including home audio systems, portable speakers, and automotive sound systems.
  • Characteristics: This IC offers high efficiency, low distortion, and excellent audio performance, making it suitable for demanding audio applications.
  • Package: The TDA7491LP13TR is available in a compact and industry-standard PowerSSO-36 package.
  • Essence: The essence of this product lies in its ability to deliver high-quality amplified audio output with minimal distortion and power consumption.
  • Packaging/Quantity: The TDA7491LP13TR is typically supplied in reels containing a specific quantity based on customer requirements.

Specifications

  • Power Supply Voltage: 8V to 26V
  • Output Power: Up to 50W per channel
  • Total Harmonic Distortion (THD): <0.1%
  • Signal-to-Noise Ratio (SNR): >100dB
  • Operating Temperature Range: -40°C to 85°C
  • Package Type: PowerSSO-36

Detailed Pin Configuration

The TDA7491LP13TR features a comprehensive pin configuration that includes input, output, power supply, and control pins. A detailed pinout diagram can be found in the product datasheet.

Functional Features

  • High Efficiency: The TDA7491LP13TR utilizes advanced amplifier architecture to achieve high efficiency, minimizing power dissipation and heat generation.
  • Low Distortion: This IC is designed to deliver low distortion audio output, ensuring faithful reproduction of the input signal.
  • Integrated Protection Circuitry: It incorporates protection features such as overcurrent and thermal shutdown to safeguard the IC and connected components.

Advantages and Disadvantages

Advantages

  • High efficiency
  • Low distortion
  • Integrated protection features
  • Wide operating voltage range

Disadvantages

  • Higher cost compared to some lower-power alternatives
  • Requires careful PCB layout for optimal performance

Working Principles

The TDA7491LP13TR operates as a class D audio amplifier, utilizing pulse-width modulation (PWM) techniques to efficiently amplify the input audio signal. By rapidly switching the output transistors, it minimizes power loss and heat generation while delivering high-quality audio output.

Detailed Application Field Plans

The TDA7491LP13TR is well-suited for a range of audio applications, including: - Home audio systems - Portable Bluetooth speakers - Automotive infotainment systems - Professional audio equipment

Detailed and Complete Alternative Models

  • TDA7492P: Lower power variant suitable for smaller audio systems
  • TDA8954TH/N1: High-power audio amplifier IC for professional audio applications
  • TPA3116D2: Class D amplifier with similar power output and features

In conclusion, the TDA7491LP13TR is a highly capable audio amplifier IC with a wide range of applications, offering high efficiency, low distortion, and integrated protection features. Its versatility and performance make it a popular choice for audio system designers seeking reliable and high-quality amplification solutions.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af TDA7491LP13TR i tekniske løsninger

  1. What is the maximum output power of TDA7491LP13TR?

    • The maximum output power of TDA7491LP13TR is 25 watts per channel into an 8-ohm load.

  2. What is the input voltage range for TDA7491LP13TR?

    • The input voltage range for TDA7491LP13TR is typically between 8V and 26V.

  3. Does TDA7491LP13TR require an external heat sink?

    • Yes, TDA7491LP13TR requires an external heat sink for proper thermal management, especially when operating at higher power levels.

  4. What is the efficiency of TDA7491LP13TR?

    • TDA7491LP13TR has a high efficiency of up to 90%, making it suitable for energy-efficient applications.

  5. Can TDA7491LP13TR be used in bridge-tied load (BTL) configuration?

    • Yes, TDA7491LP13TR can be configured for bridge-tied load (BTL) operation to drive higher power loads.

  6. What are the recommended output filter components for TDA7491LP13TR?

    • The recommended output filter components for TDA7491LP13TR include inductors and capacitors to optimize performance and reduce noise.

  7. Is TDA7491LP13TR suitable for battery-powered applications?

    • Yes, TDA7491LP13TR's wide input voltage range and high efficiency make it suitable for battery-powered applications.

  8. Does TDA7491LP13TR have built-in short-circuit protection?

    • Yes, TDA7491LP13TR features built-in short-circuit protection to safeguard the amplifier and connected components.

  9. What is the typical total harmonic distortion (THD) of TDA7491LP13TR?

    • The typical total harmonic distortion (THD) of TDA7491LP13TR is low, ensuring high-quality audio output.

  10. Are there any application notes or reference designs available for TDA7491LP13TR?

    • Yes, application notes and reference designs are available to assist with the implementation of TDA7491LP13TR in various technical solutions.