TPA2001D2PWPR

The Texas Instruments TPA2001D2PWPR is a 1-W, stereo, analog input Class-D audio amplifier. This third-generation device offers improvements over previous models, including lower supply current, a lower noise floor, and better efficiency. It is designed to operate without an output filter, simplifying the design and reducing component count.

Key electrical specifications include an output power of 1 W into an 8-Ω load with less than 0.4% THD+N. The amplifier operates from an analog supply voltage ranging from 2.5 V to 5.5 V. It exhibits low supply current, drawing typically 8 mA without a filter and 15 mA with a filter, and a very low shutdown current of 1 µA. The noise floor is rated at 56 µV RMS, and maximum efficiency reaches 85% into an 8-Ω load.

This amplifier features four internal gain settings, up to 23.5 dB, and a PSRR of 77 dB. It includes integrated depop circuitry and short-circuit protection for enhanced reliability. The operating temperature range is -40°C to 85°C.

The TPA2001D2PWPR is available in a 24-pin HTSSOP (PWP) package, measuring 49.92 mm² (7.8 mm × 6.4 mm). Its modulation scheme is optimized for filterless operation, making it suitable for space-constrained applications where power efficiency and audio performance are critical.