產品詳細資料

Audio input type Analog Input Architecture Class-D Speaker channels (max) 4 Rating Catalog Power stage supply (max) (V) 36 Power stage supply (min) (V) 12 Load (min) (Ω) 1.5 Output power (W) 175 SNR (dB) 111 THD + N at 1 kHz (%) 0.005 Iq (typ) (mA) 12.5 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 10.8 Analog supply voltage (max) (V) 13.2 PSRR (dB) 80 Operating temperature range (°C) 0 to 70
Audio input type Analog Input Architecture Class-D Speaker channels (max) 4 Rating Catalog Power stage supply (max) (V) 36 Power stage supply (min) (V) 12 Load (min) (Ω) 1.5 Output power (W) 175 SNR (dB) 111 THD + N at 1 kHz (%) 0.005 Iq (typ) (mA) 12.5 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 10.8 Analog supply voltage (max) (V) 13.2 PSRR (dB) 80 Operating temperature range (°C) 0 to 70
HTSSOP (DDV) 44 113.4 mm² 14 x 8.1
  • Differential Analog Inputs
  • Total Output Power at 10%THD+N
    • 175-W Stereo into 4 Ω in BTL Configuration
    • 220-W Stereo into 3 Ω in BTL Configuration
    • 350-W Mono into 2 Ω in PBTL Configuration
  • Total Output Power at 1%THD+N
    • 140-W Stereo into 4 Ω in BTL Configuration
    • 175-W Stereo into 3 Ω in BTL Configuration
    • 285-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
    • 60 dB PSRR (BTL, No Input Signal)
    • <60 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 12-V to 36-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
  • Differential Analog Inputs
  • Total Output Power at 10%THD+N
    • 175-W Stereo into 4 Ω in BTL Configuration
    • 220-W Stereo into 3 Ω in BTL Configuration
    • 350-W Mono into 2 Ω in PBTL Configuration
  • Total Output Power at 1%THD+N
    • 140-W Stereo into 4 Ω in BTL Configuration
    • 175-W Stereo into 3 Ω in BTL Configuration
    • 285-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
    • 60 dB PSRR (BTL, No Input Signal)
    • <60 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 12-V to 36-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

TPA3251 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 can drive up to 2 x 175 W into 4-Ω load and 2 x 220 W into 3-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, TPA3251 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.

TPA3251 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 can drive up to 2 x 175 W into 4-Ω load and 2 x 220 W into 3-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, TPA3251 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.

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類型 標題 日期
* Data sheet TPA3251 175-W Stereo, 350-W Mono PurePath™ Ultra-HD Analog-Input Class-D Amplifier datasheet (Rev. D) PDF | HTML 2016年 4月 20日
Application note TPA324x and TPA325x Post-Filter Feedback (Rev. A) 2018年 3月 7日
More literature High-Power Audio Amplifiers TPA322x/4x/5x 2017年 12月 1日
User guide TPA3251 Evaluation Module User's Guide 2017年 11月 2日
Application note Multi-Device Configuration for TPA32xx Amplifiers 2017年 9月 27日
Technical article Get loud with a 700W automotive audio amplifier for infotainment systems PDF | HTML 2017年 6月 15日
Technical article Professional audio equipment made the most noise at the 2017 NAMM Show PDF | HTML 2017年 3月 14日
More literature TI Automotive External Amplifiers (Rev. A) 2017年 2月 3日
More literature TI Powered Speakers (Rev. A) 2017年 1月 31日
Application note Class-D Amplifier External Load Diagnostics 2017年 1月 23日
Application note LC Filter Design (Rev. A) 2016年 11月 9日
Application note TPA32xx Analog Input Grounding for Single Ended Inputs PDF | HTML 2016年 8月 26日
More literature High-Power Audio Amplifiers 2016年 7月 14日
Technical article How to select an audio amplifier for products with internal or external speakers PDF | HTML 2016年 2月 29日

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (DDV) 44 Ultra Librarian

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