TDA7294HS

Overview

Category

TDA7294HS belongs to the category of integrated circuits (ICs) specifically designed for audio amplification.

Use

This product is commonly used in audio systems, such as stereo amplifiers and home theater systems, to amplify audio signals and provide high-quality sound output.

Characteristics

• High power capability: TDA7294HS can deliver up to 100 watts of power, making it suitable for applications requiring high audio output.
• Low distortion: It offers low harmonic and intermodulation distortion, ensuring accurate reproduction of audio signals.
• Wide frequency response: The device has a wide frequency response range, typically from 20 Hz to 20 kHz, enabling faithful audio reproduction across the entire audible spectrum.

Package

TDA7294HS is available in a multiwatt15 package, which consists of a 15-lead, single-in-line plastic package with a copper heat sink.

Essence

The essence of TDA7294HS lies in its ability to provide high-power audio amplification while maintaining low distortion and wide frequency response characteristics.

Packaging/Quantity

This product is typically sold in reels or tubes containing a specified quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply voltage: 10V to 100V
• Output power: Up to 100W
• Total harmonic distortion: <0.1%
• Signal-to-noise ratio: >90dB
• Operating temperature range: -40°C to +150°C

Pin Configuration

The TDA7294HS IC has the following pin configuration:

Pin 1: Mute/Standby Pin 2: Non-Inverting Input Pin 3: Inverting Input Pin 4: V- (Negative Power Supply) Pin 5: V+ (Positive Power Supply) Pin 6: Output Pin 7: Bootstrap Pin 8: Compensation Pin 9: Ground Pin 10: Thermal Pad Pin 11: N.C. (No Connection) Pin 12: N.C. Pin 13: N.C. Pin 14: N.C. Pin 15: N.C.

Functional Features

• Mute/Standby function: Pin 1 allows the amplifier to be muted or put into standby mode, reducing power consumption when not in use.
• High output power: The TDA7294HS can deliver high-quality audio output with a power rating of up to 100W.
• Short-circuit and thermal protection: The IC incorporates built-in protection mechanisms to safeguard against short circuits and excessive heat.

Advantages and Disadvantages

Advantages

• High power capability for demanding audio applications.
• Low distortion ensures accurate sound reproduction.
• Wide frequency response covers the entire audible spectrum.
• Built-in protection features enhance reliability.

Disadvantages

• Requires external components for a complete audio amplifier circuit.
• Higher cost compared to lower-power audio amplifiers.

Working Principles

The TDA7294HS operates as a class AB audio amplifier. It utilizes a complementary push-pull configuration to amplify audio signals. The input signal is amplified by two internal power transistors, which drive the output stage to produce the desired audio output power. The device incorporates feedback mechanisms to maintain stability and minimize distortion.

Detailed Application Field Plans

TDA7294HS finds application in various audio systems, including: - Stereo amplifiers - Home theater systems - Professional audio equipment - Car audio systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to TDA7294HS include: - LM3886 - TDA2050 - TDA2030 - STA540

These alternatives can be considered based on specific requirements and design constraints.

In conclusion, TDA7294HS is a high-power audio amplifier IC that offers low distortion, wide frequency response, and built-in protection features. It finds application in various audio systems and can be replaced by alternative models depending on specific design needs.