TAS2559YZR - 5.7W Class-D Smart Amp | Texas Instruments
N.º da peça: TAS2559YZR ✓ AtivoTAS2559YZR Visão geral
A smart amplifier is a system-on-chip audio device that combines a Class-D output stage with digital control, processing, and protection functions. In the broader hierarchy, it belongs to audio amplifiers, amplifier ICs, and integrated circuits. Integrating processing and speaker protection helps reduce the component count and board area required for portable and embedded audio systems while retaining programmable audio behavior.
Key features include 5.7 W output capability, a mono Class-D topology, digital input, integrated speaker protection, speaker sensing, stereo processing, and Class-H boost functionality identified in the verified product and datasheet listings. These features position the device for applications requiring efficient loudspeaker drive, controlled boost behavior, and protection against speaker-related faults rather than a simple fixed-output analog amplifier.
The TAS2559YZR uses Texas Instruments' Class-H boost approach to improve loudspeaker output capability while retaining a Class-D output stage. The available descriptions identify an 8.5 V boost-related implementation, but detailed boost thresholds, modulation limits, and power limits require consultation of the manufacturer datasheet. Exact speaker impedance, battery voltage, thermal conditions, and output configuration therefore determine usable audio power in the finished product.
Typical uses include portable speakers, personal audio accessories, Bluetooth speaker systems, compact consumer audio products, voice-controlled devices, and other embedded audio platforms. The digital input interface allows audio data to be supplied by a host processor or audio codec, while stereo processing supports systems that need more flexibility than a conventional fixed mono amplifier.
Designers should pay close attention to the 42-DSBGA layout, exposed thermal and ground-ball requirements, digital-audio routing, speaker-sensing implementation, and boost configuration. PCB layout, decoupling, thermal management, and clean return paths strongly affect Class-D performance, while protection thresholds must be validated against the impedance and power handling of the intended speaker.
This product data consolidates verified manufacturer and distributor information, commercial availability, technical comparisons, and practical integration guidance. It is intended to support faster sourcing and design decisions while clearly separating confirmed specifications from parameters that still require confirmation in the manufacturer datasheet.
Alternativas drop-in para TAS2559YZR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Nenhuma alternativa drop-in disponível para este produto.
Solicitar alternativasTAS2559YZR Classificações máximas e características elétricas
| Product Type | Digital-input smart audio amplifier |
| Amplifier Class | Class-D |
| Configuração de saída | Mono, 1 channel |
| Rated Output Power | 5.7 W |
| Boost Architecture | Class-H boost |
| Input Interface | Digital input |
| Integrated Speaker Protection | Yes |
| Speaker Sense | Yes |
| Stereo Processing | Yes |
| Supply Voltage Range | 2.9 V to 5.5 V |
| Corrente de repouso | 3 mA |
| Faixa de temperatura de operação | -40°C to 85°C |
| Encapsulamento | 42-DSBGA (YZ) |
| Contagem de pinos | 42 pins |
| Tipo de montagem | Surface mount |
| Supplier Availability | In stock at LCSC as of 2026-10-30 |
| Reference Unit Price | $3.6023 USD as of 2026-10-30 |
Guia de Configuração de Pinos do TAS2559YZR 42-dsbga (yz)
Configuração de pinos para TAS2559YZR (pacote 42-dsbga (yz)). Este componente analógico possui pinos de entrada, saída e alimentação. Consulte o datasheet do fabricante para configurações de offset null, compensação e pino de enable. Ideal para circuitos de condicionamento de sinal e amplificadores.
Nenhum dado detalhado de pinagem disponível para TAS2559YZR.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
TAS2559YZR é adequado para 6 aplicaçãos: Portable Bluetooth Speakers, Personal Audio Accessories, Smart Voice-Control Devices, Compact Consumer Audio Systems, Battery-Powered Audio Products, Embedded Industrial Audio Modules.
Portable Bluetooth Speakers
The TAS2559YZR fits portable Bluetooth speakers that require substantial output from a compact 42-DSBGA device. Its verified 5.7 W Class-D output, digital audio input, and integrated speaker protection reduce the need for a separate analog audio path and fault-management circuitry. In a host-based design, the Bluetooth audio processor can provide digital samples while the smart amplifier handles speaker drive, sensing, processing, and protection. The 2.9 V to 5.5 V operating range aligns with common portable power systems. Designers should still validate usable output against battery voltage, speaker impedance, enclosure thermal conditions, and the exact Class-H boost limits documented by Texas Instruments.
Recomendado
Personal Audio Accessories
The TAS2559YZR is well suited to compact personal-audio products where board area and speaker protection are important. A 5.7 W mono output can serve a small loudspeaker, while digital input enables direct connection to a host codec or application processor. Integrated speaker protection and sensing distinguish it from a simple Class-D output stage and can simplify protection coordination in designs exposed to variable loads or mechanical speaker faults. Because the component uses a 42-pin DSBGA, assembly, rework, thermal-pad access, and PCB cleanliness require careful planning. Final acoustic performance depends on the speaker impedance, enclosure, supply impedance, and protection settings selected for the target accessory.
Recomendado
Smart Voice-Control Devices
Smart voice-controlled products can use the TAS2559YZR to provide efficient local loudspeaker playback from a digital audio source. The smart-amplifier architecture combines 5.7 W Class-D drive, speaker sensing, stereo processing, and integrated protection in one 42-DSBGA package, reducing the need for separate digital-to-analog and output-stage blocks. Digital input is particularly useful when the system already transports audio through a digital audio interface. Because voice devices are frequently battery powered, the 2.9 V to 5.5 V operating range is useful, but average power depends on playback duty cycle, boost state, speaker loading, and amplifier efficiency. Microphone and voice-capture functions remain separate from this output-amplifier role.
Recomendado
Compact Consumer Audio Systems
The TAS2559YZR can support compact consumer-audio systems that require intelligent speaker drive rather than a fixed analog-output amplifier. Its stereo-processing capability provides design flexibility even when the power output is configured for one mono channel, while integrated protection helps manage unpredictable speaker conditions. The 5.7 W rating is suitable for many small desktop, smart-home, and accessory enclosures when tested with the selected speaker. System partitioning should provide the required digital-audio source, control interface, and firmware configuration. Since the verified package is a 42-pin DSBGA, designers must reserve the exact footprint and provide adequate thermal spreading beneath and around the device before high-volume production.
Recomendado
Battery-Powered Audio Products
Battery-powered audio products benefit from the TAS2559YZR because the device combines Class-D output efficiency with Class-H boost and integrated speaker protection. The verified 2.9 V to 5.5 V supply range can accommodate regulated rails commonly available in portable equipment, and the 5.7 W rating can deliver useful output to a small speaker. Boost behavior and protection activation must be coordinated with battery-current limits to avoid unexpected load changes. A practical design should estimate average and peak current at the actual rail voltage, provide local supply decoupling, and validate thermal rise over the product's longest playback duration. Speaker impedance and acoustic limits remain central because amplifier power ratings alone do not determine perceived loudness.
Recomendado
Embedded Industrial Audio Modules
The TAS2559YZR can be used in embedded industrial audio modules where local annunciation or spoken-status feedback requires compact, protected loudspeaker drive. Its 5.7 W mono Class-D output, digital input, speaker sensing, and integrated protection are useful when the module must operate from a 2.9 V to 5.5 V source and tolerate variable speaker loads. Industrial temperature requirements must be checked against the verified -40°C to 85°C operating range, including temperature rise at the DSBGA. Firmware should handle loss of digital audio, invalid speaker conditions, and shutdown events predictably. Since verified cross-reference data did not establish a pin-compatible industrial alternative, long-life availability and exact lifecycle commitments should be confirmed directly with Texas Instruments.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TAS2559YZR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto |
|---|---|
| Package | 42-DSBGA (YZ) |
| Brand | Texas Instruments |
| Rated Output Power | 5.7 W |
| Output Configuration | Mono, 1 channel |
| Amplifier Class | Class-D |
| Boost Architecture | Class-H boost |
| Input Interface | Digital input |
| Integrated Speaker Protection | Yes |
| Speaker Sense | Yes |
| Supply Voltage Range | 2.9 V to 5.5 V |
| Operating Temperature Range | -40°C to 85°C |
| Pin Count | 42 pins |
Principais diferenciais
- Combines boost, sensing, processing, and protection in one smart-amplifier device (vs Basic fixed-output mono Class-D amplifier)
- Digital-input architecture reduces an external audio conversion path (vs Analog-input mono Class-D amplifier)
- Compact 5.7 W output in a 42-DSBGA (vs Larger discrete or discrete-plus-controller speaker-drive solution)
Notas de projeto
Use the exact Texas Instruments 42-DSBGA land pattern and follow the manufacturer’s recommended placement of power, ground, digital-audio, speaker-sense, and boost-related balls. Class-D and Class-H output currents can produce fast edges, so keep output and speaker routes compact and route return current through the intended ground-ball structure. Place input and bypass components close to their associated pins, and avoid routing sensitive digital-audio nets beneath or immediately beside switching-output nets.
Treat the DSBGA as a thermal and electrical design constraint rather than a leadless footprint with no thermal requirement. Provide the manufacturer-recommended ground-ball and exposed-ball connection, adequate copper spreading, and a PCB surface finish and assembly process suitable for the 42-ball package. Estimate worst-case dissipation from the actual output power, supply voltage, load, and efficiency, then verify junction and enclosure temperature in the final speaker and housing configuration.
Validate the complete power path across battery or adapter variation, Class-H boost transitions, startup, and sustained maximum output. The verified operating range is 2.9 V to 5.5 V, but usable output and current vary with rail voltage and speaker impedance. Place local supply-bypass components at the device according to the datasheet, minimize source impedance, and configure boost, limiter, and protection parameters so that the power source and speaker remain within their ratings.
Do not treat the verified 5.7 W rating as a guarantee for every speaker, supply, and enclosure. Verify the supported speaker impedance, load transients, boost limits, protection thresholds, thermal conditions, and digital-audio configuration in the manufacturer data sheet. Also avoid assuming that a similarly rated Class-D amplifier is a replacement: pin-out, control firmware, speaker sensing, processing, and protection behavior must all match before a part can be considered truly drop-in compatible.
Informações de conformidade
The supplied manufacturer and distributor search data did not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for TAS2559YZR. These fields therefore remain unknown rather than being inferred.
