STA575 - 100W Stereo BASH Power Amplifier | STMicroelectronics
部品番号: STA575 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
STA575 概要
The STA575 is an integrated audio power module within the broader amplifier IC, audio amplifier, and Class AB amplifier hierarchy. Class AB amplifiers combine transistor conduction for improved linearity with lower distortion than many switching audio power stages. In the BASH architecture, the STABP01 supplies digital control and signal-processing functions while the STA575 provides the high-power analog output stage and speaker drive capability.
Key features include 100+100 W output power into 4 or 8 ohms at 10% THD, 80+80 W output power at 0.5% THD, stereo operation, high-dynamic preamplifier inputs, external programmable feedback, integrated compressor functions, and AC-coupled input coupling. The 27-pin Flexiwatt vertical package is intended for audio power amplifier designs requiring substantial output current and thermal management.
The device is intended for stereo speaker systems, compact hi-fi equipment, multimedia enclosures, powered speakers, and other Class AB audio products. The manufacturer datasheet identifies the BASH architecture and the electrical operating limits that determine speaker impedance, supply voltage, thermal design, and distortion performance. Designers should use the complete datasheet for pin assignment, recommended application circuitry, protection requirements, and maximum ratings.
Because this is a high-power analog module, PCB layout and heat sinking are as important as signal selection. Keep high-current speaker paths short and wide, use the recommended input and feedback networks, decouple the supply rails close to the device, and validate thermal performance at the intended output power. A nominal 100 W rating does not eliminate the need for an adequate copper area, thermal interface, enclosure airflow, or speaker-load verification.
This page combines the verified STMicroelectronics and distributor descriptions with practical engineering guidance. It is intended to help engineers identify the correct function, package, power class, datasheet, and design constraints while avoiding unsupported substitute claims or fabricated electrical details.
ドロップイン代替品: STA575 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストSTA575 最大定格＆電気的特性
| Product Type | Fully integrated BASH stereo power amplifier |
| Amplifier Configuration | 2-channel stereo Class AB |
| Output Power | 80+80 W at RL = 4/8 ohm and THD = 0.5% |
| Maximum Output Power | 100+100 W at RL = 4/8 ohm and THD = 10% |
| BASH Architecture | Mono-chip bridge stereo amplifier on BASH architecture |
| Input Stage | High-dynamic preamplifier input stages |
| Feedback | External programmable feedback |
| Compression | Integrated compressors |
| Input Coupling | AC-coupled input |
| パッケージ | 27-Flexiwatt vertical |
| ピン数 | 27 pins |
| Load Impedance | 4 ohm or 8 ohm speaker loads |
| Output Mode | Stereo bridge output |
| Total Harmonic Distortion | 0.5% at 80 W per channel; 10% at 100 W per channel |
| Application Processor | STABP01 digital processor |
| 実装タイプ | Power surface-mount package |
STA575 27-flexiwatt vertical ピン配置ガイド
STA575 (27-flexiwatt vertical パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: STA575.
詳細は データシート をご参照ください。
主な用途
STA575 の用途: 6 件s: Powered Stereo Speaker, Multimedia Speaker System, Compact Hi-Fi Amplifier, Home Theater Stereo Power Stage, Professional Audio Monitor, Audio Power Module with STABP01.
Powered Stereo Speaker
The STA575 is suited to a powered stereo speaker because it is a 2-channel Class AB BASH amplifier with verified output capability of 80+80 W at 0.5% THD and 100+100 W at 10% THD into 4 or 8 ohm loads. It can serve as the high-power analog output stage when the system uses the STABP01 digital processor. The design should follow the manufacturer feedback and input network, provide short wide speaker traces, and include a heat sink or substantial copper area for sustained high output.
おすすめ
Multimedia Speaker System
A multimedia speaker system can use the STA575 when it requires more output power than a small portable speaker amplifier and benefits from a dedicated stereo Class AB stage. The verified 4 ohm and 8 ohm load capability allows the designer to select the speaker impedance appropriate to the enclosure and power supply. Its external programmable feedback and compressor functions should be evaluated carefully, while PCB layout must minimize output-loop area and maintain adequate thermal dissipation.
おすすめ
Compact Hi-Fi Amplifier
The STA575 can form the output section of a compact hi-fi amplifier where higher power and stereo channel separation are required. Its high-dynamic preamplifier input stages may be useful in systems that need to preserve signal headroom before the power stage, while AC-coupled inputs and programmable feedback require careful component selection. The verified 80+80 W specification should be treated as a system capability, not a guarantee without the required supply, cooling, protection, and speaker impedance.
おすすめ
Home Theater Stereo Power Stage
The STA575 can be evaluated for a home-theater stereo power stage when a BASH-based architecture and the STABP01 control ecosystem are already part of the design. The 2-channel format supports left and right speaker amplification, while the verified 4 ohm and 8 ohm load ratings help match the output stage to speaker systems. Its Class AB topology should be assessed for heat dissipation, idle behavior, distortion, and protection in a continuously powered entertainment enclosure.
おすすめ
Professional Audio Monitor
The STA575 may be considered for a powered monitor or compact professional audio system requiring a high-power stereo output section. The verified 0.5% THD condition at 80+80 W provides a defined starting point for amplifier evaluation, while the programmable feedback and compressor functions can support system-level gain and protection planning. Designers must still verify noise, frequency response, stability, thermal performance, and connector requirements from the complete datasheet.
おすすめ
Audio Power Module with STABP01
The STA575 is specifically intended to implement a BASH amplifier when used with the STABP01 digital processor. This makes it most relevant when the complete audio product is designed around that processor rather than when an isolated analog amplifier is being selected. The external programmable feedback, compressor functions, and AC-coupled inputs should be implemented with the manufacturer's reference circuit. System partitioning must also account for control signals, speaker protection, grounding, and thermal management.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: STA575 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 |
|---|---|
| Brand | STMicroelectronics |
| Package | 27-Flexiwatt vertical |
| Channel Configuration | 2-channel stereo |
| Amplifier Class | Class AB |
| Output Power at 0.5% THD | 80+80 W into 4/8 ohm |
| Output Power at 10% THD | 100+100 W into 4/8 ohm |
| Architecture | BASH amplifier for use with STABP01 |
| Input Features | High-dynamic preamplifier inputs, external programmable feedback, compressors, AC-coupled inputs |
主な差別化要因
- Integrated BASH architecture （vs Generic Class AB audio amplifier)
- High-power stereo output capability （vs Lower-power portable audio amplifier)
- Integrated control-oriented features （vs Basic fixed-feedback stereo amplifier)
設計ノート
Estimated: because the verified data specifies 80+80 W at 0.5% THD but does not provide supply voltage, efficiency, or thermal resistance, junction temperature cannot be calculated without the missing design inputs. Use the manufacturer's maximum ratings and application circuit to select the heat sink and copper area, then verify temperature rise in the finished enclosure at the intended speaker load.
Keep the STA575 speaker output loops compact and use wide copper traces sized for the required output current. Place input, feedback, and supply-decoupling components according to the manufacturer layout, maintaining short return paths and a stable ground reference. The 27-Flexiwatt vertical package is a power package, so thermal copper and mechanical attachment should be planned during layout rather than added after assembly.
Do not substitute a generic Class AB amplifier solely because its advertised wattage is similar. The STA575 is defined as a BASH device intended for use with the STABP01 and includes specialized feedback, compressor, input, and package arrangements. Before any replacement, verify the complete pinout, electrical limits, control interface, feedback network, speaker load range, and application circuit against the manufacturer datasheet.
The verified output-power figures depend on load and distortion conditions: 80+80 W is specified at 0.5% THD, while 100+100 W is specified at 10% THD. Do not combine these numbers or use them without stating the test condition. Confirm the supply rails, speaker impedance, protection strategy, and thermal environment before treating either figure as the usable continuous power of a finished amplifier.
コンプライアンス情報
The supplied verified data identifies the function, package, power ratings, BASH architecture, and STABP01 relationship, but does not provide RoHS, REACH, lead-free, halogen-free, conflict-minerals, or AEC-Q100 status.
