Overview
The TPA701DGNR is a Class-AB audio power amplifier produced by Texas Instruments, designed specifically for low-voltage applications. This 1-channel (mono) amplifier is housed in an 8-MSOP-PowerPad package, making it suitable for compact and power-sensitive designs. It is widely used in portable electronics, such as mobile phones, tablets, and other battery-powered devices, due to its efficient power consumption and small footprint. The TPA701DGNR is particularly valued for its thermal and short-circuit protection features, ensuring reliable performance in various operating conditions.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Power | 700 | mW | @8 Ohms, BTL |
| Supply Voltage | 2.5 - 5.5 | V | |
| Quiescent Current | 1.25 | mA | |
| THD + Noise | 0.55 | % | |
| Operating Temperature | -40 to +85 | °C | |
| Package | 8-MSOP-PowerPad | Surface Mount | |
| PSRR | 85 | dB | |
| Gain Bandwidth Product | 1.4 | MHz |
Key Features
- Low-voltage operation (2.5V to 5.5V) for battery-powered devices.
- Thermal and short-circuit protection for enhanced reliability.
- Ultralow quiescent current in shutdown mode (1.5 nA).
- Compact 8-MSOP-PowerPad package, reducing board space by 50%.
- High power supply rejection ratio (PSRR) of 85 dB.
Applications
The TPA701DGNR is ideal for applications requiring compact and efficient audio amplification. It is commonly used in portable electronics, such as smartphones, tablets, and portable media players. Additionally, it is suitable for wireless communication devices, where its narrow band optimization ensures clear audio performance. Its thermal and short-circuit protection features make it a reliable choice for industrial and automotive audio systems.
Q & A
1. What is the output power of the TPA701DGNR?
The TPA701DGNR delivers up to 700 mW of output power into an 8-Ohm load in a bridge-tied load (BTL) configuration.
2. What is the operating voltage range?
The amplifier operates within a voltage range of 2.5V to 5.5V.
3. Does the TPA701DGNR support thermal protection?
Yes, it includes thermal and short-circuit protection to ensure safe operation.
4. What is the quiescent current of the TPA701DGNR?
The quiescent current is typically 1.25 mA.
5. What package does the TPA701DGNR use?
It is available in an 8-MSOP-PowerPad surface-mount package.
6. Is the TPA701DGNR suitable for battery-powered devices?
Yes, its low-voltage operation and efficient power consumption make it ideal for battery-powered applications.
7. What is the PSRR of the TPA701DGNR?
The power supply rejection ratio (PSRR) is 85 dB.
8. Can the TPA701DGNR operate in extreme temperatures?
Yes, it operates within a temperature range of -40°C to +85°C.
9. Does the TPA701DGNR support shutdown mode?
Yes, it features a shutdown mode with an ultralow quiescent current of 1.5 nA.
10. What is the typical THD + Noise of the TPA701DGNR?
The total harmonic distortion plus noise (THD + Noise) is typically 0.55%.
