Description：

TPA3255 is a high performance class-D poweramplifier that enables true premium sound qualitywith class-D efficiency. It features an advancedintegrated feedback design and proprietary highspeed gate driver error correction (PurePath™ UltraHD). This technology allows ultra low distortionacross the audio band and superior audio quality.The device is operated in AD-mode, and can drive upto 2 x 315 W into 4-Ω load at 10% THD and 2 x 150W unclipped into 8-Ω load and features a 2 VRMSanalog input interface that works seamlessly with highperformance DACs such as TI's PCM5242. Inaddition to excellent audio performance, TPA3255achieves both high power efficiency and very lowpower stage idle losses below 2.5W. This is achievedthrough the use of 85 mΩ MOSFETs and anoptimized gate driver scheme that achievessignificantly lower idle losses than typical discreteimplementations.

Features：

• Differential Analog Inputs

• Total Output Power at 10%THD+N

– 315-W Stereo into 4 Ω in BTL Configuration

– 185-W Stereo into 8 Ω in BTL Configuration

– 600-W Mono into 2 Ω in PBTL Configuration

• Total Output Power at 1%THD+N

– 260-W Stereo into 4 Ω in BTL Configuration

– 150-W Stereo into 8 Ω in BTL Configuration

– 480-W Mono into 2 Ω in PBTL Configuration

• Advanced Integrated Feedback Design with Highspeed Gate Driver Error Correction(PurePath™ Ultra-HD)

– Signal Bandwidth up to 100 kHz for HighFrequency Content From HD Sources

– Ultra Low 0.006% THD+N at 1 W into 4 Ω and<0.01% THD+N to Clipping

– >65 dB PSRR (BTL, 1 kHz, No Input Signal)

– <85 µV (A-Weighted) Output Noise

– >111 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 18-V to 53.5V Supply Voltage Operation

• Self-Protection Design (Including Undervoltage,Overtemperature, Clipping, and Short CircuitProtection) With Error Reporting

• EMI Compliant When Used With RecommendedSystem Design

Applications：

• Blu-Ray Disc™ / DVD Receivers

• High End HTiB Systems

• AV Receivers

• High End Soundbar

• Mini Combo Systems

• Active Speakers and Subwoofers