TPA3118D2DAPR

Product Overview

Category

The TPA3118D2DAPR belongs to the category of audio amplifier integrated circuits (ICs).

Use

This product is primarily used for amplifying audio signals in various electronic devices such as audio systems, home theaters, and portable speakers.

Characteristics

• High efficiency: The TPA3118D2DAPR offers high power efficiency, ensuring optimal utilization of power supply.
• Low distortion: It provides low total harmonic distortion (THD) and noise, resulting in high-quality audio output.
• Wide voltage range: This IC can operate within a wide voltage range, making it suitable for different power supply configurations.
• Thermal protection: The TPA3118D2DAPR incorporates thermal shutdown and overtemperature protection mechanisms to prevent damage due to excessive heat.

Package

The TPA3118D2DAPR is available in a small outline package (SOP) with a specified pin configuration.

Essence

The essence of the TPA3118D2DAPR lies in its ability to amplify audio signals efficiently while maintaining high audio fidelity.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Power supply voltage: 4.5V to 26V
• Output power: Up to 30W per channel
• Total harmonic distortion + noise (THD+N): <0.1%
• Signal-to-noise ratio (SNR): >100dB
• Operating temperature range: -40°C to 85°C
• Package type: SOP

Detailed Pin Configuration

The TPA3118D2DAPR features a 24-pin SOP package with the following pin configuration:

1. Mute
2. BTL_OUT1
3. BTL_OUT2
4. PVCC
5. GND
6. IN1-
7. IN1+
8. IN2-
9. IN2+
10. IN3-
11. IN3+
12. SD
13. MODE
14. SDA
15. SCL
16. AGND
17. VDD
18. BST
19. PVDD
20. OUT1
21. OUT2
22. FB1
23. FB2
24. VREF

Functional Features

• Class D amplifier: The TPA3118D2DAPR utilizes a class D amplifier architecture, ensuring high efficiency and low power dissipation.
• Integrated audio processing: It incorporates built-in audio processing features such as volume control, equalization, and dynamic range compression.
• I2C interface: The IC supports communication through the I2C bus, enabling control and configuration of various parameters.
• Short-circuit protection: The TPA3118D2DAPR includes short-circuit protection to safeguard the amplifier and connected speakers from damage.

Advantages and Disadvantages

Advantages

• High power efficiency
• Low distortion and noise
• Wide voltage range compatibility
• Thermal protection mechanism

Disadvantages

• Requires additional external components for complete audio system integration
• Limited output power compared to higher-end amplifiers

Working Principles

The TPA3118D2DAPR operates based on the class D amplifier principle. It converts the incoming analog audio signal into a pulse-width modulated (PWM) signal. This PWM signal is then amplified using switching transistors, resulting in an amplified audio output. The class D architecture ensures high efficiency by minimizing power dissipation during the amplification process.

Detailed Application Field Plans

The TPA3118D2DAPR finds applications in various audio systems, including: - Home theater systems - Car audio systems - Portable speakers - Soundbars - Multimedia devices

Detailed and Complete Alternative Models

1. TPA3116D2DADR: Similar to the TPA3118D2DAPR, this model offers comparable features and performance but with a different pin configuration.
2. TAS5613A: This alternative model provides higher output power and additional audio processing capabilities, suitable for more demanding audio applications.
3. LM3886: A popular alternative, the LM3886 offers higher output power and a different amplifier architecture, catering to high-fidelity audio enthusiasts.

(Note: The above list is not exhaustive and serves as an example of alternative models.)

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