Overview
The TPA3128D2DAP is a high-performance, Class-D audio amplifier produced by Texas Instruments. Designed for a wide range of audio applications, this model is part of the TPA3128D2 series, known for its efficiency and robust performance. The TPA3128D2DAP is housed in a compact PowerPAD™ HTSSOP package, making it suitable for space-constrained designs. It targets applications in consumer electronics, portable audio devices, and automotive audio systems, offering a unique combination of low distortion, high efficiency, and thermal protection.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Power | 15 | W | Per channel at 10% THD+N, 8Ω, 24V |
| Supply Voltage | 10 to 30 | V | Operating range |
| Efficiency | 90 | % | Typical at full power |
| THD+N | 0.1 | % | At 1W, 1kHz |
| Package | HTSSOP-32 | - | PowerPAD™ |
| Operating Temperature | -40 to 85 | °C | Range |
| Signal-to-Noise Ratio (SNR) | 95 | dB | Typical |
| Standby Current | 0.1 | µA | Typical |
Key Features
- High efficiency with Class-D architecture, reducing power consumption and heat dissipation.
- Integrated thermal and short-circuit protection for enhanced reliability.
- Low distortion and high signal-to-noise ratio for superior audio quality.
- Flexible supply voltage range (10V to 30V) for versatile applications.
- Compact HTSSOP-32 PowerPAD™ package for space-saving designs.
Applications
The TPA3128D2DAP is widely used in consumer electronics such as soundbars, portable speakers, and home theater systems. Its efficiency and compact size make it ideal for portable audio devices like Bluetooth speakers and docking stations. Additionally, it is suitable for automotive audio systems, providing robust performance in challenging environments. Its thermal protection and low distortion ensure reliable operation in high-power audio applications.
Q & A
1. What is the maximum output power of the TPA3128D2DAP?
The TPA3128D2DAP can deliver up to 15W per channel at 10% THD+N with an 8Ω load and 24V supply.
2. What is the operating voltage range?
The amplifier operates within a supply voltage range of 10V to 30V.
3. Does it include thermal protection?
Yes, the TPA3128D2DAP features integrated thermal and short-circuit protection.
4. What is the typical efficiency of this amplifier?
The typical efficiency is 90% at full power.
5. What package does the TPA3128D2DAP use?
It is housed in a compact HTSSOP-32 PowerPAD™ package.
6. What is the THD+N at 1W output?
The THD+N is 0.1% at 1W output and 1kHz.
7. Is it suitable for automotive applications?
Yes, its robust design and thermal protection make it suitable for automotive audio systems.
8. What is the standby current consumption?
The standby current is typically 0.1µA.
9. Can it drive 4Ω speakers?
Yes, it can drive 4Ω speakers, but the output power and thermal performance should be carefully considered.
10. What is the signal-to-noise ratio (SNR)?
The SNR is typically 95dB, ensuring high-quality audio output.
