TITPA3255DDVR
Overview
The TPA3255DDVR is a high-performance Class-D power amplifier that enables true high-definition sound quality with efficiency. It features an advanced integrated feedback design and proprietary high-speed gate driver error correction, known as PurePath Ultra-HD, which allows for ultra-low distortion across the audio band. This device can drive up to 315W into 2 channels at 4 ohms or 600W into a single channel at 2 ohms while maintaining a wide supply voltage range of 18V to 53.5V.
Why Choose This Part
The TPA3255DDVR offers greater than 111 dB SNR and a high PSRR of 65 dB, ensuring exceptionally quiet performance even with non-ideal power supplies. Its 90% efficiency at 4 ohms reduces thermal management requirements, allowing for smaller enclosures and heat sinks in high-power designs. Additionally, the integrated self-protection suite provides robust defense against undervoltage, overtemperature, and short-circuit conditions with dedicated error reporting.
Applications
Key Specifications
Getting Started
Designers should begin with the TPA3255EVM evaluation module to verify performance and thermal layouts. Ensure the thermal pad of the 44-HTSSOP package is properly soldered to a large copper area on the PCB for heat dissipation. Follow the recommended LC filter design in the datasheet to maintain EMI compliance and optimize audio output quality.
TPA3255 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Output Type | Max Output Power x Channels @ Load | Stock |
|---|---|---|---|
| TPA3255DDVR (this part) | Channel-2 | 315W x 2 @ 4Ohm, 6.. | 4,377 |
| TPA3255EVM | Channel-1 | 605W x 1 @ 2Ohm; 3.. | 17 |
