TPA3255 Series
315-W stereo, 600-W mono, 18- to 53.5-V supply, analog input Class-D audio amplifier
Manufacturer: Texas Instruments
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Key Features
• Differential Analog InputsTotal Output Power at 10%THD+N315-W Stereo into 4 Ω in BTL Configuration185-W Stereo into 8 Ω in BTL Configuration600-W Mono into 2 Ω in PBTL ConfigurationTotal Output Power at 1%THD+N260-W Stereo into 4 Ω in BTL Configuration150-W Stereo into 8 Ω in BTL Configuration480-W Mono into 2 Ω in PBTL ConfigurationAdvanced 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 SourcesUltra 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) SNRMultiple Configurations Possible:Stereo, Mono, 2.1 and 4xSEClick and Pop Free Startup and Stop90% Efficient Class-D Operation (4 Ω)Wide 18-V to 53.5V Supply Voltage OperationSelf-Protection Design (Including Undervoltage, Overtemperature, Clipping, and Short Circuit Protection) With Error ReportingEMI Compliant When Used With Recommended System DesignDifferential Analog InputsTotal Output Power at 10%THD+N315-W Stereo into 4 Ω in BTL Configuration185-W Stereo into 8 Ω in BTL Configuration600-W Mono into 2 Ω in PBTL ConfigurationTotal Output Power at 1%THD+N260-W Stereo into 4 Ω in BTL Configuration150-W Stereo into 8 Ω in BTL Configuration480-W Mono into 2 Ω in PBTL ConfigurationAdvanced 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 SourcesUltra 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) SNRMultiple Configurations Possible:Stereo, Mono, 2.1 and 4xSEClick and Pop Free Startup and Stop90% Efficient Class-D Operation (4 Ω)Wide 18-V to 53.5V Supply Voltage OperationSelf-Protection Design (Including Undervoltage, Overtemperature, Clipping, and Short Circuit Protection) With Error ReportingEMI Compliant When Used With Recommended System Design
Description
AI
TPA3255 is a high performance class-D power amplifier that enables true premium sound quality with class-D efficiency. It features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality. The device is operated in AD-mode, and can drive up to 2 x 315 W into 4-Ω load at 10% THD and 2 x 150 W unclipped into 8-Ω load and features a 2 VRMS analog input interface that works seamlessly with high performance DACs such as TI’s PCM5242. In addition to excellent audio performance, TPA3255 achieves both high power efficiency and very low power stage idle losses below 2.5W. This is achieved through the use of 85 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.
TPA3255 is a high performance class-D power amplifier that enables true premium sound quality with class-D efficiency. It features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality. The device is operated in AD-mode, and can drive up to 2 x 315 W into 4-Ω load at 10% THD and 2 x 150 W unclipped into 8-Ω load and features a 2 VRMS analog input interface that works seamlessly with high performance DACs such as TI’s PCM5242. In addition to excellent audio performance, TPA3255 achieves both high power efficiency and very low power stage idle losses below 2.5W. This is achieved through the use of 85 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.