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STA485A Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
STA485ASK3010Yes

STA485A is a high-performance Class D audio amplifier IC manufactured by STMicroelectronics.

The STA485A is a high-performance Class D audio amplifier IC manufactured by STMicroelectronics.

Key Specifications:

  • Supply Voltage Range: 4.5V to 26V
  • Output Power: Up to 2 × 50W (into 4Ω at 21V)
  • Efficiency: >90% (typical)
  • THD+N: <0.1% (typical)
  • Signal-to-Noise Ratio (SNR): >100dB
  • Operating Frequency: Adjustable (300kHz to 1MHz)
  • Package: PowerSSO-36

Descriptions and Features:

  • Class D Amplifier: Provides high efficiency with low heat dissipation.
  • Stereo/Mono Configurations: Supports both stereo (2-channel) and mono (bridged) operation.
  • Advanced Protection Circuits: Includes thermal shutdown, overcurrent, and undervoltage protection.
  • Wide Supply Voltage Range: Suitable for various applications from portable devices to automotive audio.
  • Adjustable Switching Frequency: Allows optimization for EMI and efficiency.
  • Pop & Click Suppression: Minimizes noise during power-on/off.
  • Standby Mode: Low-power consumption when inactive.

The STA485A is commonly used in home audio systems, automotive amplifiers, and multimedia speakers.

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