TPA3244 - 60W Stereo / 110W Peak Ultra-HD Analog-In, Pad-Down Class-D Amplifier

The TPA3244 device is a high performance Class-D power amplifier that enables truepremium sound quality with Class-D efficiency. It features an advanced integrated feedback designand proprietary high-speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra lowdistortion across the audio band and superior audio quality. With a 30-V power supply the devicecan drive up to 2 x 110 W peak into 4-Ω load and 2 x 60 W continuous into 8-Ω load and features a2-VRMS analog input interface that works seamlessly with high performance DACs such as Burr-BrownPCM52xx DAC Family from TI (that is, PCM5242 / PCM5252). In addition to excellent audioperformance, TPA3244 achieves both high power efficiency and very low power stage idle losses below0.45 W. This is achieved through the use of 65 mΩ MOSFETs and an optimized gate driver scheme thatachieves significantly lower idle losses than typical discrete implementations.

• Differential Analog Inputs
• Total Output Power at 10%THD+N
  • 60-W Stereo Continuous into 8 Ω in BTL Configuration at 30 V
  • 110-W Stereo Peak into 4 Ω in BTL Configuration at 30 V
• Total Output Power at 1%THD+N
  • 50-W Stereo Continuous into 8 Ω in BTL Configuration at 30 V
  • 90-W Stereo Peak into 4 Ω in BTL Configuration at 30 V
• Advanced Integrated Feedback Design with High-speed Gate Driver Error Correction
  (PurePath™ Ultra-HD)
  • Signal Bandwidth up to 100 kHz for High Frequency Content From HD Sources
  • Ultra Low 0.005% THD+N at 1 W into 4 Ω and <0.01% THD+N to Clipping
  • 60 dB PSRR (BTL, No Input Signal)
  • <55 µV (A-Weighted) Output Noise
  • >110 dB (A Weighted) SNR
• Multiple Configurations Possible:
  • Stereo, Mono, 2.1 and 4xSE
• Click and Pop Free Startup and Stop
• 94% Efficient Class-D Operation (8 Ω)
• Wide 12-V to 30-V Supply Voltage Operation
• Self-Protection Design (Including Undervoltage, Overtemperature, Clipping, and Short Circuit Protection) With Error Reporting
• EMI Compliant When Used With Recommended System Design

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