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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

Texas Instruments TPA2015D1 2W Class-D Audio Amplifiers

Features

Applications

Simplified Application Schematic

Block Diagram

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