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STMICROELECTRONICS TDA7454 Automotive Audio Amplifier

The TDA7454 is a high-efficiency quad bridge car radio amplifier utilizing BCD technology in a Flexiwatt25 package. It offers up to 4 x 40W/4Q max power output, with features like low external component count, internally fixed gain, and protection against shorts and load dump voltages. Its innovative operating principle dynamically adjusts connections, reducing power dissipation by up to 50% compared to traditional class AB amplifiers. Suitable for automotive audio systems, it ensures reliable, efficient amplification with minimal heat generation and advanced diagnostics including clipping and overheating detection.

Authorized Distributors
Source:Newark
Part No:TDA7454
Stock:47
Inv Date:06-11-2026
Price: Unit price: $9.9
Buy/RFQ:
Source:DigiKey
Part No:TDA7454
Stock:323
Inv Date:06-11-2026
Price: Unit price: $7.78
Buy/RFQ:
Part No:TDA7454
Stock:0
Inv Date:06-12-2026
Price: N/A
Buy/RFQ:

STMICROELECTRONICS TDA7454 Automotive Audio Amplifier Specifications:

  • Operating Supply Voltage: 8 V to 18 V
  • DC Supply Voltage: 28 V
  • Peak Supply Voltage: 40 V
  • Output Peak Current: 8 A (not repetitive), 6 A (repetitive)
  • Total Power Dissipation: 86 W at 70°C
  • Junction Storage & Temp: -55°C to 150°C
  • Thermal Resistance Junction-case: Max 1 °C/W
  • Output Power: 25 W (THD=10%), 20 W (THD=1%) at 14.4V, RL=4Ω
  • Output Power (EIAJ): 35 W at 13.7V, RL=2Ω
  • Quiescent Current: 60-250 mA
  • Input Impedance: 15 KΩ
  • Voltage Gain: 26 dB (typical)
  • Stand-by Attenuation: 100 dB
  • Muting Attenuation: 90 dB
  • Short Circuit & Load Dump protection
  • Thermal warning at 150°C
  • Pin configuration includes dedicated grounds, diagnostic output, mute, stand-by, and input pins.

Buy the STMicroelectronics TDA7454 – Reliable Car Audio Amplifier for Automotive Applications

Enhance your vehicle's audio system with the STMicroelectronics TDA7454, a high-efficiency quad bridge amplifier. Offering up to 40W power per channel with reduced heat dissipation, it ensures clear, powerful sound performance. Its low external component count simplifies design, while integrated protections safeguard against shorts, load dump, and overheating. Ideal for car stereo installations, the TDA7454 is easy to integrate, reliable, and optimized for automotive environments. Buy online today for dependable, high-quality audio performance in your vehicle.

Buy STMicroelectronics TDA7454 now and experience reliable, high-efficiency amplification with advanced protection for automotive audio systems.

Frequently Asked Questions

Where can I buy STMICROELECTRONICS TDA7454?

You can click on the BUY or RFQ button to purchase TDA7454 from an authorized STMICROELECTRONICS distributor.

How do I troubleshoot issues or seek technical support for part TDA7454?

You can download the TDA7454 datasheet or visit the STMICROELECTRONICS website for support.

Who is the manufacturer of TDA7454?

STMICROELECTRONICS

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