Overview
The TPA6111A2DR is a stereo audio power amplifier produced by Texas Instruments. It is available in either an 8-pin SOIC or an 8-pin PowerPAD MSOP package. This amplifier is capable of delivering 150 mW of continuous RMS power per channel into 16-Ω loads. The device is fully specified for operation at 3.3 V and 5 V, making it suitable for a variety of applications including PC and mobile devices. The amplifier gain is externally configured using two resistors per input channel and does not require external compensation for settings of 0 to 20 dB.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Power (each channel) | 150 | mW |
| Load Resistance | 16 Ω | |
| Supply Voltage Range | 2.5 V to 5.5 V | V |
| Operating Temperature Range | -40 to 85 | °C |
| Package Types | 8-pin SOIC, 8-pin PowerPAD MSOP | |
| THD+N (at 1 kHz, 16 Ω load, 5 V) | 0.03% | |
| THD+N (at 1 kHz, 32 Ω load, 5 V) | < 0.02% | |
| THD+N (at 1 kHz, 10 kΩ load, 5 V) | 0.005% | |
| Supply Current (typical, VDD = 3.3 V) | 1.5 to 3 mA | |
| Supply Current in Shutdown Mode | 1 to 10 µA |
Key Features
- 150-mW Stereo Output
- PC Power Supply Compatible
- Fully Specified for 3.3-V and 5-V Operation
- Operation to 2.5 V
- Pop Reduction Circuitry
- Internal Midrail Generation
- Thermal and Short-Circuit Protection
- Surface-Mount Packaging (SOIC and PowerPAD MSOP)
- Pin Compatible With TPA122, LM4880, and LM4881 (SOIC)
Applications
- Smart Phones and Wireless Handsets
- Portable Tablets
- Notebook PCs and Docking Stations
Q & A
- What is the maximum output power of the TPA6111A2DR?
The TPA6111A2DR can deliver up to 150 mW of continuous RMS power per channel into 16-Ω loads.
- What are the supported supply voltage ranges for the TPA6111A2DR?
The device is fully specified for operation at 3.3 V and 5 V, and it can operate from 2.5 V to 5.5 V.
- What types of packages are available for the TPA6111A2DR?
The TPA6111A2DR is available in either an 8-pin SOIC or an 8-pin PowerPAD MSOP package.
- How is the amplifier gain configured in the TPA6111A2DR?
The amplifier gain is externally configured using two resistors per input channel and does not require external compensation for settings of 0 to 20 dB.
- What is the THD+N performance of the TPA6111A2DR at 1 kHz with a 16-Ω load and 5 V supply?
The THD+N is 0.03% at 1 kHz with a 16-Ω load and 5 V supply.
- Does the TPA6111A2DR have thermal and short-circuit protection?
- How does the shutdown mode work on the TPA6111A2DR?
The device can be put in shutdown mode by asserting the SHUTDOWN pin to a logic HIGH level, significantly reducing current consumption.
- What is the typical supply current of the TPA6111A2DR at 3.3 V?
The typical supply current is between 1.5 to 3 mA at 3.3 V.
- Is the TPA6111A2DR pin compatible with other amplifiers?
- What are some common applications for the TPA6111A2DR?
