TDA7802PDTR

Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - High efficiency - Low distortion - Wide frequency response - Power supply voltage range: 6V to 18V - Output power: 45W x 4 channels - Package: PowerSSO-36

Essence: The TDA7802PDTR is a high-performance audio amplifier IC designed for automotive applications. It provides high-quality sound reproduction with low distortion and high efficiency.

Packaging/Quantity: The TDA7802PDTR is available in a PowerSSO-36 package, which ensures efficient heat dissipation. It is typically sold in reels or tubes containing multiple units.

Specifications

The TDA7802PDTR has the following specifications:

• Supply Voltage Range: 6V to 18V
• Output Power: 45W x 4 channels
• Total Harmonic Distortion (THD): <0.05%
• Signal-to-Noise Ratio (SNR): >90dB
• Frequency Response: 20Hz to 20kHz
• Operating Temperature Range: -40°C to +105°C

Pin Configuration

The TDA7802PDTR has a total of 36 pins. The pin configuration is as follows:

1. MUTE
2. IN1-
3. IN1+
4. GND
5. IN2+
6. IN2-
7. VCC
8. OUT1
9. OUT2
10. OUT3
11. OUT4
12. VCC
13. BOOT
14. BYPASS
15. DIAG
16. S-GND
17. S-GND
18. S-GND
19. S-GND
20. S-GND
21. S-GND
22. S-GND
23. S-GND
24. S-GND
25. S-GND
26. S-GND
27. S-GND
28. S-GND
29. S-GND
30. S-GND
31. S-GND
32. S-GND
33. S-GND
34. S-GND
35. S-GND
36. S-GND

Functional Features

The TDA7802PDTR offers the following functional features:

• High-efficiency class D amplifier architecture
• Four independent channels for stereo or multi-channel applications
• Built-in protection circuits for over-temperature, over-voltage, and short-circuit conditions
• Mute function for easy control of audio output
• Diagnostic pin for monitoring the status of the amplifier

Advantages and Disadvantages

Advantages: - High efficiency results in less power consumption and reduced heat generation. - Low distortion ensures accurate sound reproduction. - Wide frequency response allows for faithful audio playback across the entire audible spectrum. - Integrated protection circuits enhance reliability and prevent damage to the amplifier.

Disadvantages: - Limited output power compared to some higher-end audio amplifiers. - Requires an external power supply within the specified voltage range.

Working Principles

The TDA7802PDTR operates on the principle of class D amplification. It utilizes pulse width modulation (PWM) to convert the input audio signal into a high-frequency square wave. This square wave is then filtered and amplified to produce the final audio output. The high efficiency of class D amplifiers is achieved by minimizing power dissipation during the amplification process.

Detailed Application Field Plans

The TDA7802PDTR is primarily used in automotive audio systems, including car radios, amplifiers, and infotainment systems. Its compact size, high efficiency, and reliable performance make it suitable for various vehicle models. It can be integrated into both factory-installed and aftermarket audio systems.

Detailed and Complete Alternative Models

• TDA7850: Similar to the TDA7802PDTR, but with higher output power (50W x 4 channels).
• TDA7377: Dual-channel audio amplifier IC with lower output power (15W x 2 channels).
• TDA7498E: Class D amplifier IC with higher output power (160W x 2 channels).

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

In conclusion, the TDA7802PDTR is a high-performance audio amplifier IC designed for automotive applications. Its high efficiency, low distortion, and wide frequency response make it an ideal choice for car audio systems. With its compact size and reliable performance, it provides excellent sound quality while minimizing power consumption.