Overview
The TPA3129D2DAPR is a high-efficiency, Class-D audio amplifier manufactured by Texas Instruments. Designed for stereo audio applications, this model is part of the TPA3129D2 series, known for its low idle power consumption and compact design. It is ideal for battery-powered audio systems, such as Bluetooth speakers, portable devices, and other consumer electronics. The TPA3129D2DAPR stands out for its ability to deliver 2 x 15W of power into an 8Ω load at 15V, making it a competitive choice for applications requiring high-quality audio output with minimal power loss.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Power | 15W x 2 | W | @8Ω, 15V |
| Supply Voltage | 4.5 - 26 | V | |
| Load Impedance | 8 | Ω | Minimum |
| THD + N | 0.1 | % | @1kHz |
| SNR | 102 | dB | |
| Idle Current | 17 | mA | Typical |
| Operating Temperature | -40 to 85 | °C | |
| Package | 32-HTSSOP | PowerTSSOP |
Key Features
- High-efficiency Class-D operation with up to 90% power efficiency.
- Low idle power consumption, extending battery life in portable devices.
- Integrated protection features including overvoltage, undervoltage, thermal shutdown, and short-circuit protection.
- Adaptive modulation mechanism based on output power for optimized performance.
- No external heatsink required, reducing system size and cost.
Applications
The TPA3129D2DAPR is widely used in various audio applications, including Bluetooth speakers, portable audio devices, home theater systems, and automotive audio systems. Its compact design and high efficiency make it particularly suitable for battery-powered devices, where minimizing power consumption is critical. Additionally, its robust protection features ensure reliable operation in demanding environments.
Q & A
1. What is the maximum output power of the TPA3129D2DAPR?
The TPA3129D2DAPR can deliver up to 15W per channel into an 8Ω load at 15V.
2. What is the operating voltage range?
The amplifier operates within a voltage range of 4.5V to 26V.
3. Does the TPA3129D2DAPR require an external heatsink?
No, the amplifier's high efficiency eliminates the need for an external heatsink.
4. What protection features are included?
It includes overvoltage, undervoltage, thermal shutdown, and short-circuit protection.
5. What is the idle current consumption?
The typical idle current is 17mA.
6. What is the THD + N at 1kHz?
The total harmonic distortion plus noise is 0.1% at 1kHz.
7. What is the signal-to-noise ratio (SNR)?
The SNR is 102dB.
8. What is the recommended load impedance?
The minimum recommended load impedance is 8Ω.
9. What is the operating temperature range?
The amplifier operates within a temperature range of -40°C to 85°C.
10. What package does the TPA3129D2DAPR come in?
It is available in a 32-pin HTSSOP (PowerTSSOP) package.
