TPA3245 - 115-W Stereo, 230-W Mono 12V-31.5V Ultra-HD Analog-Input Class-D Amplifier

TPA3245 is a high performance class-D power amplifier that enables true premium soundquality with class-D efficiency. It features an advanced integrated feedback design and proprietaryhigh-speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra lowdistortion across the audio band and superior audio quality. The device is operated in AD-mode, andcan drive up to 2 x 115 W into 4-Ω load and 2 x 145 W into 3-Ω load and features a 2 VRMS analoginput interface that works seamlessly with high performance DACs such as TI’s PCM5242. In additionto excellent audio performance, TPA3245 achieves both high power efficiency and very low powerstage idle losses below 0.45 W. This is achieved through the use of 65 mΩ MOSFETs and an optimizedgate driver scheme that achieves significantly lower idle losses than typical discreteimplementations.

• Differential Analog Inputs
• Total Output Power at 10%THD+N
  • 115-W Stereo into 4 Ω in BTL Configuration
  • 145-W Stereo into 3 Ω in BTL Configuration
  • 230-W Mono into 2 Ω in PBTL Configuration
• Total Output Power at 1%THD+N
  • 95-W Stereo into 4 Ω in BTL Configuration
  • 115-W Stereo into 3 Ω in BTL Configuration
  • 185-W Mono into 2 Ω in PBTL Configuration
• 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
  • 65 dB PSRR (BTL, No Input Signal)
  • <50 µV (A-Weighted) Output Noise
  • >112 dB (A Weighted) SNR
• Multiple Configurations Possible:
  • Stereo, Mono, 2.1 and 4xSE
• Click and Pop Free Startup and Stop
• 90% Efficient Class-D Operation (4 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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