Texas Instruments TPA2015D1 2W Class-D Audio Amplifiers
Texas Instruments TPA2015D1 2W Class-D Audio Amplifiers offer high efficiency with battery-tracking SpeakerGuard™ AGC technology and an integrated adaptive boost converter that improves efficiency at low output power. The TPA2015D1 drives up to 2W into an 8Ω speaker (6% THD) and has an 85% typical efficiency to extend battery life when playing audio. The built-in boost converter develops a 5.5V supply voltage for the TPA2015D1 amplifier, supplying a louder audio output than a stand-alone amplifier directly connected to the battery. The SpeakerGuard AGC adjusts the Class-D gain to limit battery current and prevent heavy clipping.
The TI TPA2015D1 Audio Amplifiers feature an integrated low-pass filter to improve the RF rejection and reduce DAC out-of-band noise, increasing the signal-to-noise ratio (SNR).
The TPA2015D1 is housed in a space-saving 1.954mm x 1.954mm, 0.5mm pitch DSBGA package (YZH).
Features
- Built-In SpeakerGuard™ Automatic Gain Control (AGC) with enhanced battery tracking
- Limits battery current consumption
- Prevents audio clipping
- 2W into 8Ω load from 3.6V supply (6% THD)
- Integrated adaptive boost converter
- Increases efficiency at low output power
- Low quiescent current of 1.7mA from 3.6V
- Operates from 2.5V to 5.2V
- Thermal and short-circuit protection with auto recovery
- 6dB, 15.5dB, and 20dB Three gain settings
- Independent control for boost and class-D
- Pin-to-Pin compatible with TPA2013D1
- Available in 1.954mm x 1.954mm 16-ball DSBGA package
Applications
- Cell phones, PDA, GPS
- Portable electronics and speakers
Simplified Application Schematic
Block Diagram
Published: 2022-07-27
| Updated: 2022-08-02