Overview
The TPA3250D2DDWR from Texas Instruments is a high-performance Class-D power amplifier designed to deliver premium sound quality with high efficiency. This device features an advanced integrated feedback design and proprietary high-speed gate driver error correction known as PurePath™ Ultra-HD, which ensures ultra-low distortion across the audio band and superior audio quality. It is capable of driving up to 2 × 130 W peak into 4-Ω loads and 2 × 70 W continuous into 8-Ω loads with a 32V power supply. The amplifier also includes a 2 VRMS analog input interface that works seamlessly with high-performance DACs like TI's PCM5242. The TPA3250D2DDWR achieves high power efficiency and very low power stage idle losses below 1 W, making it an ideal choice for various audio applications.
Key Specifications
| Parameter | Value |
|---|---|
| Total Output Power at 10% THD+N | 70-W Stereo Continuous into 8 Ω in BTL Configuration at 32 V 130-W Stereo Peak into 4 Ω in BTL Configuration at 32 V |
| Total Output Power at 1% THD+N | 60-W Stereo Continuous into 8 Ω in BTL Configuration at 32 V 105-W Stereo Peak into 4 Ω in BTL Configuration at 32 V |
| Supply Voltage Range | 12-V to 36-V |
| Signal Bandwidth | Up to 100 kHz |
| THD+N | 0.005% at 1 W into 4 Ω, <0.01% to Clipping |
| PSRR (BTL, No Input Signal) | 60 dB |
| Output Noise (A-Weighted) | <60 µV |
| SNR (A Weighted) | >110 dB |
| Efficiency | 92% Efficient Class-D Operation (8 Ω) |
| Package | HTSSOP (44) |
| Body Size | 6.10mm x 14.00mm |
Key Features
- Advanced integrated feedback design with high-speed gate driver error correction (PurePath™ Ultra-HD)
- Ultra-low distortion across the audio band
- Multiple configurations possible: Stereo, Mono, 2.1, and 4xSE
- Click and pop free startup and stop
- Self-protection design including undervoltage, overtemperature, clipping, and short circuit protection with error reporting
- EMI compliant when used with recommended system design
- Wide 12-V to 36-V supply voltage operation
Applications
- High-end soundbars
- Mini combo systems
- Blu-ray Disk™ / DVD receivers
- Active speakers
Q & A
- What is the maximum output power of the TPA3250D2DDWR?
The TPA3250D2DDWR can deliver up to 2 × 130 W peak into 4-Ω loads and 2 × 70 W continuous into 8-Ω loads with a 32V power supply. - What is the supply voltage range for the TPA3250D2DDWR?
The supply voltage range is 12-V to 36-V. - What is the signal bandwidth of the TPA3250D2DDWR?
The signal bandwidth is up to 100 kHz. - What is the THD+N of the TPA3250D2DDWR?
The THD+N is 0.005% at 1 W into 4 Ω and <0.01% to clipping. - Is the TPA3250D2DDWR EMI compliant?
Yes, it is EMI compliant when used with recommended system design. - What are the protection features of the TPA3250D2DDWR?
The device includes self-protection for undervoltage, overtemperature, clipping, and short circuit with error reporting. - What is the efficiency of the TPA3250D2DDWR?
The device achieves 92% efficient Class-D operation (8 Ω). - What are the possible configurations for the TPA3250D2DDWR?
The device can be configured in Stereo, Mono, 2.1, and 4xSE configurations. - Does the TPA3250D2DDWR have click and pop free startup and stop?
Yes, it features click and pop free startup and stop. - What is the package type and size of the TPA3250D2DDWR?
The package type is HTSSOP (44) with a body size of 6.10mm x 14.00mm.
