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.