TPA2015D1 - 2W Class-D Audio Amplifier With Adaptive Boost and Battery Tracking SpeakerGuard AGC

The TPA2015D1 is a high efficiency Class-D audio power amplifier with battery-tracking SpeakerGuard AGC technology and an integrated adaptive boost converter that enhances efficiency at low output power. It drives up to 2 W into an 8 Ω speaker (6% THD). With 85% typical efficiency, the TPA2015D1 helps extend battery life when playing audio.

The built-in boost converter generates a 5.5 V supply voltage for the Class-D amplifier. This provides a louder audio output than a stand-alone amplifier directly connected to the battery. The SpeakerGuard^TM AGC adjusts the Class-D gain to limit battery current and prevent heavy clipping.

The TPA2015D1 has 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 available in a space saving 1.954 mm × 1.954 mm, 0.5 mm pitch DSBGA package (YZH).

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• Built-In SpeakerGuard^TM Automatic Gain Control (AGC) with Enhanced Battery Tracking
• Limits Battery Current Consumption
• Prevents Audio Clipping
• 2 W into 8 Ω Load From 3.6 V Supply (6% THD)
• Integrated Adaptive Boost Converter
  • Increases Efficiency at Low Quiescent Current of 1.7 mA from 3.6 V
• Operates From 2.5 V to 5.2 V
• Thermal and Short-Circuit Protection with Auto Recovery
• Three Gain Settings: 6 dB, 15.5 dB, and 20 dB
• Independent Control for Boost and Class-D
• Pin-to-Pin Compatible with TPA2013D1
• Available in 1.954 mm × 1.954 mm 16-ball DSBGA Package

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APPLICATIONS

• Cell Phones, PDA, GPS
• Portable Electronics and Speakers