TAS5601DCA - 20W Stereo Class-D Amplifier | Texas Instruments
部品番号: TAS5601DCA ✓ 生産中TAS5601DCA 概要
A digital Class-D audio amplifier is a switching power stage that uses pulse-width-modulated drive signals to deliver power efficiently to loudspeakers. Unlike a conventional linear audio amplifier, the TAS5601 converts the PWM input into high-frequency switching currents, reducing the amount of power dissipated within the output stage. The TAS5601 belongs to the Class-D amplifier hierarchy, where its four half bridges provide the switching elements required for stereo speaker drive.
The principal operating specifications are 20 W per channel, a 10 V to 26 V supply range, and PWM single-ended input. The amplifier is designed for speakers with an impedance as low as 4 ohms. According to the manufacturer datasheet, Rev. A, efficiency exceeds 90% when driving an 8-ohm load. This efficiency figure is especially useful when comparing thermal requirements with less efficient linear amplification approaches.
Each output half bridge includes integrated feedback support, allowing the amplifier to operate with a conventional speaker connection rather than requiring a separate analog output filter. The device supports two bridge-tied speakers or four single-ended speakers, and the same output network can also be arranged for a combination of single-ended and bridge-tied loads. The resulting flexibility permits speaker-count changes without changing the amplifier package or control architecture.
Typical uses include powered speakers, stereo audio receivers, multimedia speaker systems, sound bars, consumer television equipment, and compact audio products requiring multiple speaker outputs. The 10 V to 26 V supply range is suited to systems using a 12 V or 24 V rail, while the four-half-bridge architecture is useful when the design must accommodate both stereo and multiway speaker configurations.
Design the power rails, output inductors, speaker connections, and thermal copper around the maximum 26 V operating condition. Speaker wiring and amplifier outputs must be kept away from sensitive signal paths, and the PCB layout should follow the manufacturer reference layout to control switching noise, ground bounce, and unintended electromagnetic coupling.
This page organizes the verified operating characteristics, amplifier configuration options, sourcing information, and engineering trade-offs around the TAS5601DCA. It also distinguishes genuine drop-in alternatives from package or ordering-code variations so that PCB reuse decisions remain based on pin compatibility rather than nominal power capability alone.
ドロップイン代替品: TAS5601DCA — 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。
TAS5601DCA-P
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TAS5601DCA 最大定格＆電気的特性
| Product Type | Stereo digital Class-D audio amplifier power stage |
| Maximum Output Power | 20 W per channel |
| Supply Voltage Range | 10 V to 26 V |
| Input Signal Type | PWM single-ended input |
| 出力構成 | 2-channel stereo or 4-channel quad Class D |
| Output Architecture | 4 half bridges |
| Supported Speaker Loads | 4 single-ended speakers, 2 bridge-tied speakers, or a combination |
| Minimum Speaker Impedance | 4 ohm |
| 効率 | >90% into an 8-ohm load |
| パッケージ | 56-pin HTSSOP (DCA) |
| 実装タイプ | Surface mount |
| Feedback | Integrated feedback support |
TAS5601DCA 56-pin htssop (dca) ピン配置ガイド
TAS5601DCA (56-pin htssop (dca) 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: TAS5601DCA.
詳細は データシート をご参照ください。
主な用途
TAS5601DCA の用途: 6 件s: Powered Stereo Speakers, Multimedia Speaker Systems, Stereo Audio Receivers, Sound Bars, Consumer Television Audio, Portable and Compact Audio Products.
Powered Stereo Speakers
The TAS5601DCA fits powered stereo speakers that require 20 W per channel from a 12 V or 24 V system rail. Its four half bridges can be arranged as two bridge-tied channels, and the manufacturer datasheet, Rev. A, reports greater than 90% efficiency into an 8-ohm load. That efficiency reduces amplifier heat and supports compact enclosure designs. The design should preserve the recommended output network and PCB layout, account for continuous speaker loading, and verify that both channels remain within the 10 V to 26 V operating range under worst-case supply conditions.
おすすめ
Multimedia Speaker Systems
The TAS5601DCA can support multimedia speaker systems that need flexible speaker wiring from one amplifier platform. Its four half bridges allow operation as a four-channel single-ended amplifier for four speakers or as a two-channel bridge-tied amplifier for two speakers. The 20 W per-channel capability suits compact desktop, multimedia, and powered-accessory designs operating from a 12 V rail. Designers should calculate output-network dissipation, keep switching-current paths compact, and use the manufacturer reference layout to minimize EMI coupling into nearby analog or digital circuits.
おすすめ
Stereo Audio Receivers
The TAS5601DCA is appropriate for stereo audio receivers and powered speakers requiring efficient Class-D output stages. A 20 W per-channel rating, 10 V to 26 V supply operation, and support for 4-ohm loads align with compact receiver designs using 12 V or 24 V rails. Its PWM single-ended input should be connected to a compatible modulation source through the network prescribed by the manufacturer. Good grounding, local supply decoupling, and physical separation between speaker outputs and sensitive preamplifier traces are important for preserving audio performance.
おすすめ
Sound Bars
The TAS5601DCA suits sound bars where a stereo output can be paired with additional single-ended channels. Its configurable four-half-bridge architecture supports two bridge-tied speakers, four single-ended speakers, or a mixture, while 20 W per channel provides useful output for compact enclosures. A 12 V or 24 V system rail falls within the stated 10 V to 26 V range. Thermal design should focus on the HTSSOP package and nearby output components, and the PCB should follow the manufacturer layout to reduce radiated emissions and avoid audible interference with wireless or control circuitry.
おすすめ
Consumer Television Audio
The TAS5601DCA can serve television and consumer-display audio designs requiring compact, efficient amplification from a 24 V or 12 V internal rail. Its 20 W per-channel Class-D output can drive conventional television speakers, while the four-half-bridge arrangement provides options for smaller multi-speaker configurations. The greater than 90% efficiency specified for an 8-ohm load helps limit amplifier dissipation inside constrained enclosures. The implementation must account for startup behavior, supply layout, heat spreading, and EMI separation from display, tuner, and digital control subsystems.
おすすめ
Portable and Compact Audio Products
The TAS5601DCA fits compact audio products that need several speaker outputs but have limited space for heat dissipation. Its 10 V to 26 V operating range accommodates internal rails used in portable docking products, powered accessories, and compact entertainment equipment, while the configurable half bridges simplify speaker routing. The switching architecture can exceed 90% efficiency into an 8-ohm load, although actual battery and thermal performance depend on the full system. Use low-ESR local decoupling, preserve the reference layout, and verify mechanical clearance around the 56-pin HTSSOP package.
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: TAS5601DCA — 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 | TAS5601DCA-P |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Package | 56-HTSSOP (DCA) | 56-HTSSOP (DCA) - same |
| Product Type | Stereo digital Class-D audio amplifier power stage | 4 half-bridge Class-D amplifier |
| Output Architecture | 4 half bridges | 4 half bridges |
主な差別化要因
- Flexible output configuration from one four-half-bridge device （vs TAS5601DCA-P)
- 20 W per-channel stereo output capability （vs TAS5601DCA-P)
- Wide 10 V to 26 V supply operating range （vs TAS5601DCA-P)
- Greater than 90% efficiency into an 8-ohm load （vs TAS5601DCA-P)
設計ノート
Use the Texas Instruments recommended PCB layout for the TAS5601DCA and place the input, output, supply, and decoupling components according to the manufacturer reference circuit. Keep the PWM input route away from speaker-output and switching-node copper. Wide, short connections for high-current outputs and a low-impedance ground return reduce switching disturbances, while localized decoupling helps control the voltage seen by the amplifier during rapid load transitions.
Estimated: amplifier power dissipation is approximately VIN multiplied by output power divided by efficiency. Using VIN = 24 V, output power = 20 W per channel, and efficiency = 90% gives about 26.7 W total input power and approximately 6.7 W total dissipation for two channels; this estimate excludes standby and bias losses. Use the thermal data and PCB copper area from the manufacturer datasheet before selecting the final thermal solution.
Separate the high-current switching paths from feedback, PWM-input, and analog ground routes. Place the output-network components in accordance with the manufacturer layout because their placement affects loop area, EMI, and switching behavior. Check the board under maximum supply voltage and sustained speaker load for output instability, excessive heating, or unintended coupling into adjacent control and communication circuits.
Do not treat stereo, quad, bridge-tied, and single-ended descriptions as interchangeable without reviewing the output-network schematic. Likewise, a shared 56-HTSSOP package does not by itself prove that every ordering suffix has identical production conditions. Confirm the complete ordering code, pin functions, absolute maximum ratings, and lifecycle information in the manufacturer documentation before releasing a production order or performing a substitution.
コンプライアンス情報
No explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals statement is established for this ordering. AEC-Q100 is not applicable because the product is an audio amplifier rather than an automotive-qualified device; automotive qualification is not established.
