TPA3255-Q1 Series
Automotive, 315-W, 2-ch, 18- to 53.5-V supply analog input Class-D audio amplifier
Manufacturer: Texas Instruments
Catalog
Automotive, 315-W, 2-ch, 18- to 53.5-V supply analog input Class-D audio amplifier
Key Features
• AEC-Q100 Qualified for Automotive ApplicationsTemperature Grade 2: –40°C to +105°C, TADifferential Analog InputsTotal Output Power at 10% THD+N315-W Stereo into 4 Ω in BTL Configuration180-W Stereo into 8 Ω in BTL Configuration600-W Mono into 2 Ω in PBTL ConfigurationTotal Output Power at 1% THD+N255-W Stereo into 4 Ω in BTL Configuration150-W Stereo into 8 Ω in BTL Configuration495-W Mono into 2 Ω in PBTL ConfigurationAdvanced Integrated Feedback Design with High-speed Gate Driver Error CorrectionSignal 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 ReportingAEC-Q100 Qualified for Automotive ApplicationsTemperature Grade 2: –40°C to +105°C, TADifferential Analog InputsTotal Output Power at 10% THD+N315-W Stereo into 4 Ω in BTL Configuration180-W Stereo into 8 Ω in BTL Configuration600-W Mono into 2 Ω in PBTL ConfigurationTotal Output Power at 1% THD+N255-W Stereo into 4 Ω in BTL Configuration150-W Stereo into 8 Ω in BTL Configuration495-W Mono into 2 Ω in PBTL ConfigurationAdvanced Integrated Feedback Design with High-speed Gate Driver Error CorrectionSignal 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 Reporting
Description
AI
TPA3255-Q1 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-Q1 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-Q1 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-Q1 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.
