TPA3255-Q1

ACTIVO

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

Detalles del producto

Output power (W) 315 Power stage supply (max) (V) 53.5 Power stage supply (min) (V) 18 Speaker channels (max) 4 Audio input type Analog Input Control interface Hardware THD + N at 1 kHz (%) 0.006 Switching frequency (max) (Hz) 450000 Output noise voltage (µV) 85 Rating Automotive Operating temperature range (°C) -40 to 105
Output power (W) 315 Power stage supply (max) (V) 53.5 Power stage supply (min) (V) 18 Speaker channels (max) 4 Audio input type Analog Input Control interface Hardware THD + N at 1 kHz (%) 0.006 Switching frequency (max) (Hz) 450000 Output noise voltage (µV) 85 Rating Automotive 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 Class-D Amplifier External Load Diagnostics (Rev. A) PDF | HTML 17 jul 2025
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 LC Filter Design (Rev. A) 09 nov 2016
Application note TPA32xx Analog Input Grounding for Single Ended Inputs PDF | HTML 26 ago 2016

Diseño y desarrollo

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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

El módulo de evaluación Ultra-HD TPA3255EVM muestra el circuito integrado TPA3255DDV de Texas Instruments. El TPA3255DDV es un amplificador de clase D de alto rendimiento que permite una calidad de sonido de primera calidad con tecnología de clase D de alta eficiencia. Cuenta con un diseño (...)
Guía del usuario: PDF | HTML
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PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® para TI es un entorno de diseño y simulación que ayuda a evaluar la funcionalidad de los circuitos analógicos. Esta completa suite de diseño y simulación utiliza un motor de análisis analógico de Cadence®. Disponible sin ningún costo, PSpice para TI incluye una de las bibliotecas de modelos (...)
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTSSOP (DDV) 44 Ultra Librarian

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