TPA3121D2PWPG4

Product Overview

Category

The TPA3121D2PWPG4 belongs to the category of audio power amplifiers.

Use

This product is primarily used for amplifying audio signals in various applications such as consumer electronics, automotive systems, and professional audio equipment.

Characteristics

• High efficiency: The TPA3121D2PWPG4 offers high efficiency, ensuring minimal power loss during operation.
• Low distortion: It provides low distortion levels, resulting in high-quality audio output.
• Wide voltage range: This amplifier can operate within a wide voltage range, making it suitable for different power supply configurations.
• Thermal protection: The TPA3121D2PWPG4 incorporates thermal protection mechanisms to prevent overheating and ensure safe operation.

Package

The TPA3121D2PWPG4 comes in a small-sized package, specifically the PowerPAD™ HTSSOP-32 package. This package offers efficient heat dissipation and ease of integration into various circuit designs.

Essence

The essence of the TPA3121D2PWPG4 lies in its ability to provide high-quality audio amplification with high efficiency and low distortion.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

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

Detailed Pin Configuration

The TPA3121D2PWPG4 has a total of 32 pins. Below is the detailed pin configuration:

1. VDDA
2. VDD
3. VDDIO
4. GND
5. IN1N
6. IN1P
7. BYPASS
8. MUTE
9. SD
10. PVCC
11. OUT1P
12. OUT1N
13. AGND
14. PGND
15. OUT2N
16. OUT2P
17. BST
18. FB
19. COMP
20. SS/TRI
21. VREF
22. VCM
23. VFB
24. VSENSE
25. VOUT
26. VDDA
27. VDD
28. VDDIO
29. GND
30. IN2N
31. IN2P
32. BYPASS

Functional Features

• BTL (Bridge-Tied Load) configuration: The TPA3121D2PWPG4 supports BTL configuration, enabling higher output power.
• Short-circuit protection: It incorporates short-circuit protection to prevent damage to the amplifier and connected devices in case of a fault.
• Pop and click suppression: This feature minimizes any unwanted noise during power-on/off transitions.
• Flexible input options: The amplifier accepts both single-ended and differential input signals.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption.
• Low distortion ensures high-quality audio reproduction.
• Wide voltage range allows for versatile applications.
• Thermal protection prevents overheating and enhances safety.

Disadvantages

• Limited output power compared to some higher-powered amplifiers.
• Requires external components for optimal performance.

Working Principles

The TPA3121D2PWPG4 operates as a class-D amplifier, utilizing pulse-width modulation (PWM) techniques. It converts the incoming analog audio signal into a digital PWM signal, which is then amplified by the power stage. The amplified PWM signal is then filtered and converted back into an analog audio signal for output.

Detailed Application Field Plans

The TPA3121D2PWPG4 finds applications in various fields, including: - Home audio systems - Automotive infotainment systems - Portable speakers - Professional audio equipment - Gaming consoles

Detailed and Complete Alternative Models

• TPA3116D2PWPR: Similar to the TPA3121D2PWPG4, this model offers higher output power and additional features.
• TPA3255EVM: This model provides even higher output power and advanced digital signal processing capabilities.
• TAS5630BPHDR: A high-performance alternative with integrated feedback and protection mechanisms.

These alternative models offer different specifications and features, catering to diverse application requirements.

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