The STA421 is a Class-D audio amplifier manufactured by STMicroelectronics (SK).
Specifications:
- Output Power: Up to 2 x 50W (4Ω, 10% THD+N) or 2 x 30W (8Ω, 10% THD+N).
- Supply Voltage Range: ±10V to ±30V (split supply) or 20V to 60V (single supply).
- Efficiency: Up to 90% (typical for Class-D amplifiers).
- THD+N (Total Harmonic Distortion + Noise): Typically <0.1% (1W, 4Ω, 1kHz).
- Signal-to-Noise Ratio (SNR): >100dB (A-weighted).
- Operating Temperature Range: -40°C to +85°C.
- Package: PowerSSO-36 (thermally enhanced).
Descriptions:
- The STA421 is a high-efficiency Class-D audio amplifier designed for high-power audio applications.
- It features advanced modulation techniques to minimize EMI and improve audio quality.
- Supports single-ended and differential input configurations.
- Includes built-in protection circuits (thermal shutdown, overcurrent, undervoltage).
Features:
- High Power Output: Capable of driving 50W per channel into 4Ω loads.
- Low Distortion: <0.1% THD+N for high-fidelity audio.
- Wide Supply Range: Compatible with single or split power supplies.
- Efficient Thermal Management: PowerSSO-36 package with exposed pad for heat dissipation.
- Protection Features:
- Thermal shutdown
- Overcurrent protection
- Undervoltage lockout (UVLO)
- Flexible Input Options: Supports single-ended and differential inputs.
This information is based solely on the STA421 datasheet from STMicroelectronics (SK). No additional recommendations or guidance are provided.