• クリーンでパワフルな音響特性
  • 1chのデバイスから強力な4chシングルチップ・デバイスにわたる幅広いポートフォリオ
  • 各種短絡、ESD、ロード・ダンプ、過熱保護機能を統合した堅牢な設計
  • 超低インピーダンス・スピーカ(最低1Ω)を駆動可能
  • 新しいスタートストップ機能搭載エンジンとハイブリッド・エンジン規格に適合した製品
  • I²Cインタフェースと自己診断機能(一部製品)
  • デジタル信号入力(一部製品)
  • 高効率(一部製品)
Class AB automotive audio amplifiers

ST's complete family of “intelligent” analog automotive power amplifiers

ST offers a complete range of intelligent analog power amplifiers for automotive audio systems.

What makes these power amplifiers "intelligent" is their reliable diagnostics array that detects the status of each speaker and can identify any failure or speaker disconnection. Two- or four-channel versions with different power levels and features, like the automatic offset control, are available. The new generation has very high efficiency (class SB, class SB-I), consuming less than a standard class AB, a valid alternative to class D power amplifiers. Furthermore, ST is the only company offering an automotive analog power amplifier with a digital input. All our amplifiers are compatible with hybrid and start-stop engines, working with a battery of just 6V.

STPA008 enriches your listening experience

Offers extreme robustness against misconnections

The STPA008 is the latest automotive-grade class AB analog input power amplifier of the STPA family designed to enrich the car audio listening experience. It embeds 4 audio channels able to deliver a maximum power of 50 W each, it can drive loads as low as 2 W and operate from 6 to 18 V without popping or interruption. This makes the product compatible with start-stop and hybrid vehicles. An exciting sound quality level is guaranteed by its particular architecture built using ST's exclusive BCD6sA smart power technology, specifically designed for audio performance. The STPA008 helps ensure excellent immunity against interference coming from mobile devices (the so-called “GSM effect”), saving input filtering components (capacitors, inductors). Radio manufacturers can further save components and space on the board since all features are integrated and the STPA008 offers extreme robustness against misconnections.

The product is available in both Flexiwatt25 and Flexiwatt27 packages.