TPA3255-Q1
- 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.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | TPA3255-Q1 315-W Stereo, 600-W mono PurePath™ ultra-HD analog-input datasheet (Rev. A) | PDF | HTML | 2019年 3月 15日 |
| Application note | LC Filter Design (Rev. B) | PDF | HTML | 2026年 6月 29日 | |
| Application note | Class-D Amplifier External Load Diagnostics (Rev. A) | PDF | HTML | 2025年 7月 17日 | |
| Application note | TPA324x and TPA325x Post-Filter Feedback (Rev. A) | 2018年 3月 7日 | ||
| Application note | Multi-Device Configuration for TPA32xx Amplifiers | 2017年 9月 27日 | ||
| More literature | TI Automotive External Amplifiers (Rev. A) | 2017年 2月 3日 | ||
| Application note | TPA32xx Analog Input Grounding for Single Ended Inputs | PDF | HTML | 2016年 8月 26日 |
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TPA3255EVM — TPA3255 315W 立體聲道 / 600W 單聲道 Ultra-HD 類比輸入音訊 D 類模組
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