TDA7376PD

Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - High output power - Low distortion - Wide supply voltage range - Thermal protection - Short-circuit protection

Package: PowerDIP-20

Essence: TDA7376PD is a high-performance audio amplifier IC designed for use in car audio systems, home theaters, and other audio applications.

Packaging/Quantity: TDA7376PD is typically sold in reels or tubes containing 25 pieces per package.

Specifications

• Supply Voltage Range: 8V to 18V
• Output Power: 35W x 4 channels
• Total Harmonic Distortion: <0.5%
• Signal-to-Noise Ratio: >80dB
• Operating Temperature Range: -40°C to +105°C

Pin Configuration

The TDA7376PD IC has a total of 20 pins. The pin configuration is as follows:

1. Mute
2. IN1-
3. IN1+
4. GND
5. VCC
6. OUT1
7. OUT2
8. OUT3
9. OUT4
10. Bootstrap
11. IN2+
12. IN2-
13. Standby
14. Mode
15. IN3-
16. IN3+
17. Vref
18. Vcc
19. Vs
20. Fault

Functional Features

1. High Output Power: The TDA7376PD provides a high output power of 35W per channel, allowing for loud and clear audio reproduction.
2. Low Distortion: With a total harmonic distortion of less than 0.5%, the IC ensures accurate sound reproduction without unwanted distortions.
3. Wide Supply Voltage Range: The IC can operate within a wide supply voltage range of 8V to 18V, making it suitable for various audio applications.
4. Thermal Protection: The TDA7376PD incorporates thermal protection circuitry to prevent overheating and ensure reliable operation.
5. Short-Circuit Protection: The IC features built-in short-circuit protection, safeguarding the amplifier and connected speakers from damage.

Advantages and Disadvantages

Advantages: - High output power allows for powerful audio reproduction. - Low distortion ensures accurate sound reproduction. - Wide supply voltage range provides flexibility in different applications. - Thermal and short-circuit protection enhance reliability and durability.

Disadvantages: - Limited to audio amplification applications. - Requires external components for a complete audio system.

Working Principles

The TDA7376PD operates as a class AB audio amplifier. It amplifies low-level audio signals received at its input pins and delivers high-power amplified signals to the output pins. The IC utilizes a combination of internal circuitry and external components to achieve high-quality audio amplification.

Detailed Application Field Plans

1. Car Audio Systems: The TDA7376PD is commonly used in car audio systems to amplify audio signals from sources such as radios, CD players, or smartphones. Its high output power and low distortion make it suitable for delivering clear and powerful sound in vehicles.

2. Home Theaters: The IC can be employed in home theater setups to amplify audio signals from DVD players, Blu-ray players, or media streaming devices. Its ability to handle multiple channels (up to 4) makes it ideal for creating immersive surround sound experiences.

3. Portable Audio Devices: The TDA7376PD can also be utilized in portable audio devices like boomboxes or portable speakers. Its compact size and efficient power consumption make it suitable for battery-powered applications.

Detailed and Complete Alternative Models

1. TDA7375PD: Similar to TDA7376PD, but with a lower output power of 25W per channel.
2. TDA7379PD: Offers higher output power of 45W per channel and additional features like built-in DC volume control.

These alternative models provide options with varying output power levels and additional functionalities, allowing users to choose the most suitable IC for their specific audio amplification needs.

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