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TPA3255-Q1

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Amplificador de audio de Clase D, entrada analógica, 315 W, 2 canales y alimentación de 18 V a 53.5 

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TPA3255-Q1

ACTIVO
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Detalles del producto

Audio input type Analog Input Architecture Class-D Speaker channels (max) 4 Rating Automotive Power stage supply (max) (V) 53.5 Power stage supply (min) (V) 18 Load (min) (Ω) 2 Output power (W) 315 SNR (dB) 112 THD + N at 1 kHz (%) 0.006 Iq (typ) (mA) 34 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 9.8 Analog supply voltage (max) (V) 11.4 PSRR (dB) 65 Operating temperature range (°C) -40 to 105
Audio input type Analog Input Architecture Class-D Speaker channels (max) 4 Rating Automotive Power stage supply (max) (V) 53.5 Power stage supply (min) (V) 18 Load (min) (Ω) 2 Output power (W) 315 SNR (dB) 112 THD + N at 1 kHz (%) 0.006 Iq (typ) (mA) 34 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 9.8 Analog supply voltage (max) (V) 11.4 PSRR (dB) 65 Operating temperature range (°C) -40 to 105
HTSSOP (DDV) 44 113.4 mm² 14 x 8.1
  • AEC-Q100 Qualified for Automotive Applications
    • Temperature Grade 2: –40°C to +105°C, TA
  • Differential Analog Inputs
  • Total Output Power at 10% THD+N
    • 315-W Stereo into 4 Ω in BTL Configuration
    • 180-W Stereo into 8 Ω in BTL Configuration
    • 600-W Mono into 2 Ω in PBTL Configuration
  • Total Output Power at 1% THD+N
    • 255-W Stereo into 4 Ω in BTL Configuration
    • 150-W Stereo into 8 Ω in BTL Configuration
    • 495-W Mono into 2 Ω in PBTL Configuration
  • Advanced Integrated Feedback Design with High-speed Gate Driver Error Correction
    • Signal Bandwidth up to 100 kHz for High Frequency 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 Circuit Protection) With Error Reporting
  • AEC-Q100 Qualified for Automotive Applications
    • Temperature Grade 2: –40°C to +105°C, TA
  • Differential Analog Inputs
  • Total Output Power at 10% THD+N
    • 315-W Stereo into 4 Ω in BTL Configuration
    • 180-W Stereo into 8 Ω in BTL Configuration
    • 600-W Mono into 2 Ω in PBTL Configuration
  • Total Output Power at 1% THD+N
    • 255-W Stereo into 4 Ω in BTL Configuration
    • 150-W Stereo into 8 Ω in BTL Configuration
    • 495-W Mono into 2 Ω in PBTL Configuration
  • Advanced Integrated Feedback Design with High-speed Gate Driver Error Correction
    • Signal Bandwidth up to 100 kHz for High Frequency 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 Circuit Protection) With Error Reporting

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.

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Documentación técnica

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* Data sheet TPA3255-Q1 315-W Stereo, 600-W mono PurePath™ ultra-HD analog-input datasheet (Rev. A) PDF | HTML 15 mar 2019
Application note TPA324x and TPA325x Post-Filter Feedback (Rev. A) 07 mar 2018
Application note Multi-Device Configuration for TPA32xx Amplifiers 27 sep 2017
More literature TI Automotive External Amplifiers (Rev. A) 03 feb 2017
Application note Class-D Amplifier External Load Diagnostics 23 ene 2017
Application note LC Filter Design (Rev. A) 09 nov 2016
Application note TPA32xx Analog Input Grounding for Single Ended Inputs PDF | HTML 26 ago 2016

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Placa de evaluación

TPA3255EVM — Módulo TPA3255 de Clase D y entrada analógica de audio ultra HD mono de 600 W/estéreo de 315 W

The TPA3255EVM Ultra-HD evaluation module demonstrates the TPA3255DDV integrated circuit from Texas Instruments. The TPA3255DDV is a high-performance Class-D amplifier that enables true premium sound quality with high efficiency class-D technology. It features an advanced integrated feedback (...)
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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