TPA3250 Series
70-W stereo, 140-W mono, 12- to 38-V supply, analog input Class-D audio amplifier, pad-down
Manufacturer: Texas Instruments
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Key Features
• Differential Analog InputsTotal Output Power at 10%THD+N70-W Stereo Continuous into 8 Ω in BTLConfiguration at 32 V130-W Stereo Peak into 4 Ω in BTLConfiguration at 32 VTotal Output Power at 1%THD+N60-W Stereo Continuous into 8 Ω in BTLConfiguration at 32 V105-W Stereo Peak into 4 Ω in BTLConfiguration at 32 VAdvanced Integrated Feedback Design with High-speed Gate Driver Error Correction(PurePath™ Ultra-HD)Signal Bandwidth up to 100 kHz for HighFrequency Content From HD SourcesUltra Low 0.005% THD+N at 1 W into 4 Ωand <0.01% THD+N to Clipping60 dB PSRR (BTL, No Input Signal)<60 µV (A-Weighted) Output Noise>110 dB (A Weighted) SNRMultiple Configurations Possible:Stereo, Mono, 2.1 and 4xSEClick and Pop Free Startup and Stop92% Efficient Class-D Operation (8 Ω)Wide 12-V to 36-V Supply Voltage OperationSelf-Protection Design (Including Undervoltage,Overtemperature, Clipping, and Short CircuitProtection) With Error ReportingEMI Compliant When Used With RecommendedSystem DesignDifferential Analog InputsTotal Output Power at 10%THD+N70-W Stereo Continuous into 8 Ω in BTLConfiguration at 32 V130-W Stereo Peak into 4 Ω in BTLConfiguration at 32 VTotal Output Power at 1%THD+N60-W Stereo Continuous into 8 Ω in BTLConfiguration at 32 V105-W Stereo Peak into 4 Ω in BTLConfiguration at 32 VAdvanced Integrated Feedback Design with High-speed Gate Driver Error Correction(PurePath™ Ultra-HD)Signal Bandwidth up to 100 kHz for HighFrequency Content From HD SourcesUltra Low 0.005% THD+N at 1 W into 4 Ωand <0.01% THD+N to Clipping60 dB PSRR (BTL, No Input Signal)<60 µV (A-Weighted) Output Noise>110 dB (A Weighted) SNRMultiple Configurations Possible:Stereo, Mono, 2.1 and 4xSEClick and Pop Free Startup and Stop92% Efficient Class-D Operation (8 Ω)Wide 12-V to 36-V Supply Voltage OperationSelf-Protection Design (Including Undervoltage,Overtemperature, Clipping, and Short CircuitProtection) With Error ReportingEMI Compliant When Used With RecommendedSystem Design
Description
AI
The TPA3250 device 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. With a 32V power supply the device can drive up to 2 × 130 W peak into 4-Ω load and 2 × 70 W continuous 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, TPA3250 achieves both high power efficiency and very low power stage idle losses below 1 W. This is achieved through the use of 60 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.
The TPA3250 device 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. With a 32V power supply the device can drive up to 2 × 130 W peak into 4-Ω load and 2 × 70 W continuous 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, TPA3250 achieves both high power efficiency and very low power stage idle losses below 1 W. This is achieved through the use of 60 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.