Overview
The TPA3125D2N is a high-efficiency Class-D audio amplifier produced by Texas Instruments. This model is designed to deliver superior audio performance with minimal power consumption, making it ideal for a wide range of audio applications. The TPA3125D2N is particularly well-suited for portable devices, home audio systems, and automotive audio systems, where power efficiency and high-quality sound are critical. Its compact design and robust feature set make it a competitive choice in the audio amplifier market.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Power | 25 | W | Per channel at 10% THD, 24V |
| Supply Voltage | 8.5 to 26 | V | |
| Efficiency | 90 | % | Typical |
| THD+N | 0.1 | % | At 1W, 1kHz |
| Operating Temperature | -40 to 85 | °C | |
| Package | HTSSOP | - | 32-pin |
| Gain | 20 to 36 | dB | Adjustable |
| Signal-to-Noise Ratio | 95 | dB | Typical |
Key Features
- High Efficiency: Achieves up to 90% efficiency, reducing power consumption and heat dissipation.
- Adjustable Gain: Gain settings from 20 dB to 36 dB allow for flexible audio level control.
- Low THD+N: Ensures high-quality audio output with minimal distortion.
- Wide Supply Voltage Range: Operates from 8.5V to 26V, making it versatile for various applications.
- Thermal and Short-Circuit Protection: Built-in safeguards enhance reliability and longevity.
Applications
The TPA3125D2N is widely used in various audio applications, including:
- Portable Audio Devices: Ideal for battery-powered devices due to its high efficiency.
- Home Audio Systems: Delivers clear and powerful sound for home theater systems and speakers.
- Automotive Audio Systems: Provides robust performance in challenging automotive environments.
- PA Systems: Suitable for public address systems requiring high output power.
Q & A
1. What is the maximum output power of the TPA3125D2N?
The TPA3125D2N can deliver up to 25W per channel at 10% THD with a 24V supply.
2. What is the operating voltage range of this amplifier?
The amplifier operates from 8.5V to 26V.
3. How efficient is the TPA3125D2N?
It achieves up to 90% efficiency, making it highly power-efficient.
4. Does the TPA3125D2N have thermal protection?
Yes, it includes built-in thermal and short-circuit protection.
5. What is the THD+N of the TPA3125D2N?
The THD+N is 0.1% at 1W, 1kHz.
6. Can the gain be adjusted on this amplifier?
Yes, the gain is adjustable from 20 dB to 36 dB.
7. What package does the TPA3125D2N come in?
It is available in a 32-pin HTSSOP package.
8. What is the typical signal-to-noise ratio?
The typical signal-to-noise ratio is 95 dB.
9. Is the TPA3125D2N suitable for automotive applications?
Yes, it is well-suited for automotive audio systems due to its robust performance and protection features.
10. What are the key applications of the TPA3125D2N?
Key applications include portable audio devices, home audio systems, automotive audio systems, and PA systems.
