STMicroelectronics
Billedet kan være en repræsentation.
Se specifikationer for produktdetaljer.
TDA8174A

TDA8174A

Product Overview

Category

TDA8174A belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in audio and video applications, specifically in television sets.

Characteristics

  • TDA8174A is a power amplifier IC designed for use in televisions.
  • It operates on a single supply voltage and provides high-quality audio output.
  • The IC is known for its low distortion and high efficiency.
  • It offers protection against short circuits and thermal overload.

Package

TDA8174A is available in a compact and industry-standard package known as SIP (Single In-line Package). This package ensures easy integration into television circuit boards.

Essence

The essence of TDA8174A lies in its ability to amplify audio signals with high fidelity and efficiency, making it an essential component in television audio systems.

Packaging/Quantity

TDA8174A is typically sold in reels or tubes, containing a specific quantity of ICs per package. The exact packaging and quantity may vary depending on the manufacturer and supplier.

Specifications

  • Supply Voltage: 9V to 18V
  • Output Power: 7W (typical)
  • Total Harmonic Distortion: 0.2% (maximum)
  • Operating Temperature Range: -40°C to +150°C
  • Package Type: SIP-9

Detailed Pin Configuration

TDA8174A features a SIP-9 package with the following pin configuration:

  1. VCC: Supply voltage input
  2. GND: Ground reference
  3. IN+: Non-inverting input
  4. IN-: Inverting input
  5. OUT: Audio output
  6. S-GND: Signal ground
  7. PROTECT: Protection pin
  8. ST-BY: Standby mode control
  9. MUTE: Mute mode control

Functional Features

  • High-quality audio amplification
  • Low distortion and high efficiency
  • Short circuit and thermal overload protection
  • Standby and mute mode control for power management

Advantages and Disadvantages

Advantages

  • Provides high-quality audio output with low distortion.
  • Offers protection against short circuits and thermal overload, ensuring the safety of the IC and connected components.
  • Standby and mute mode control allows for efficient power management.

Disadvantages

  • Limited output power compared to higher wattage amplifier ICs.
  • May require additional external components for specific applications.

Working Principles

TDA8174A operates as a class AB audio amplifier. It amplifies the input audio signal using a combination of voltage and current amplification stages. The IC ensures low distortion by employing feedback mechanisms and internal compensation circuits. Additionally, it incorporates protection features to safeguard against potential faults such as short circuits and thermal overload.

Detailed Application Field Plans

TDA8174A finds extensive application in television sets and other audio systems where high-quality audio amplification is required. Its compact size and efficient performance make it suitable for various consumer electronics products.

Detailed and Complete Alternative Models

  • TDA8172: Similar audio amplifier IC with lower output power.
  • TDA8177: Higher wattage audio amplifier IC with improved performance characteristics.
  • TDA7265: Dual-channel audio amplifier IC suitable for stereo applications.

These alternative models offer different specifications and features, allowing designers to choose the most appropriate option based on their specific requirements.

In conclusion, TDA8174A is a power amplifier IC designed for audio applications in television sets. With its high-quality audio amplification, low distortion, and protection features, it serves as an essential component in modern audio systems.

Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af TDA8174A i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of TDA8174A in technical solutions:

  1. Q: What is TDA8174A? A: TDA8174A is a power amplifier integrated circuit (IC) commonly used in audio applications.

  2. Q: What is the maximum output power of TDA8174A? A: The maximum output power of TDA8174A is typically around 20 watts.

  3. Q: Can TDA8174A be used in stereo applications? A: Yes, TDA8174A can be used in stereo applications by using two ICs for left and right channels.

  4. Q: What is the supply voltage range for TDA8174A? A: The supply voltage range for TDA8174A is typically between 8V and 18V.

  5. Q: Does TDA8174A require an external heat sink? A: Yes, TDA8174A requires an external heat sink to dissipate heat generated during operation.

  6. Q: Can TDA8174A drive low-impedance speakers? A: Yes, TDA8174A can drive low-impedance speakers down to 4 ohms.

  7. Q: Is TDA8174A suitable for battery-powered applications? A: TDA8174A is not ideal for battery-powered applications due to its relatively high power consumption.

  8. Q: Does TDA8174A have built-in protection features? A: Yes, TDA8174A has built-in protection features such as thermal shutdown and short-circuit protection.

  9. Q: Can TDA8174A be used in automotive audio systems? A: Yes, TDA8174A can be used in automotive audio systems, but additional precautions may be required for noise and temperature considerations.

  10. Q: Are there any recommended application circuits available for TDA8174A? A: Yes, the datasheet of TDA8174A provides several recommended application circuits that can be used as a reference for different audio amplifier configurations.

Please note that these answers are general and may vary depending on specific design requirements and conditions.