STPA002HSD-48X - Quad Class AB Audio Power Amplifier | STMicroelectronics
N.º da peça: STPA002HSD-48X ✓ AtivoSTPA002HSD-48X Visão geral
An audio power amplifier is an integrated circuit that converts low-level audio signals into current and voltage capable of driving loudspeakers. A Class AB amplifier conducts for both halves of the signal cycle, balancing linearity and efficiency compared with more highly efficient but nonlinear switching classes. The STPA002 belongs to the broader hierarchy of amplifier IC, linear audio amplifier, audio power amplifier, and automotive power-semiconductor product categories.
The STPA002 is designed as a MOSFET Class AB audio power amplifier. Its four-channel configuration supports multi-speaker vehicle audio systems where front and rear speaker groups may require independent amplification. STMicroelectronics highlights the device’s outstanding output-current capability, distortion performance, and robustness against fortuitous misconnections. The manufacturer also states that the amplifier complies with current OEM requirements for low-voltage operation in start-stop vehicles.
Automotive audio differs from conventional consumer audio because the battery voltage can vary during engine cranking, and alternator behavior can produce large electrical transients. The STPA002HSD-48X is therefore positioned as a robust bridge-oriented power stage for vehicle radio systems. Its MOSFET output architecture is intended to combine efficient loudspeaker drive with the low distortion expected from a Class AB audio amplifier.
Typical uses include car head units, automotive radio systems, four-speaker infotainment platforms, and vehicle audio subassemblies with multiple amplified outputs. The four-channel architecture simplifies allocation of amplifier channels across the vehicle cabin. In a typical design, the source unit supplies audio signals, protection and filtering networks handle board-level concerns, and the amplifier drives speaker loads through suitable output networks.
Designers should evaluate the exact output power, channel configuration, load impedance, thermal limits, supply range, distortion behavior, and pin functions from the manufacturer datasheet before finalizing the PCB. The vertical 27-Flexiwatt package also requires attention to copper area and thermal paths because an audio power amplifier dissipates energy as heat. Proper grounding, speaker-routing isolation, and protection against accidental short circuits are essential in a vehicle environment.
This product page combines the manufacturer’s device positioning with distributor package and catalog information, then adds engineering-focused selection, thermal, layout, and comparison guidance. It is intended to help designers distinguish the STPA002HSD-48X from unrelated quad audio amplifiers before validating the final schematic, footprint, and operating limits.
Alternativas drop-in para STPA002HSD-48X — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com STPA002HSD-48X (mesmo formato e footprint) — diferindo em Mounting Type.
STPA003HSD-48X
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Ver ficha técnica →STPA002HSD-48X Classificações máximas e características elétricas
| Device Type | Four-channel audio power amplifier IC |
| Amplifier Class | Class AB |
| Output Architecture | MOSFET Class AB |
| Number of Channels | 4 channels |
| Encapsulamento | 27-Flexiwatt vertical |
| Tipo de montagem | Through-hole |
| Primary Application | High-power car radio |
| Automotive Infotainment Support | Designed for automotive infotainment and telematics systems |
| Start-Stop Vehicle Support | Compliant with current OEM specifications for low-voltage operation |
| Misconnection Robustness | Designed for robustness against several types of fortuitous misconnection |
| Status RoHS | Supported |
| Tube Quantity | 1600 pieces |
Guia de Configuração de Pinos do STPA002HSD-48X 27-flexiwatt vertical
Configuração de pinos para STPA002HSD-48X (pacote 27-flexiwatt vertical). 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 STPA002HSD-48X.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
STPA002HSD-48X é adequado para 6 aplicaçãos: Automotive Head-Unit Amplification, Start-Stop Vehicle Radio, Four-Speaker Infotainment System, Automotive Subwoofer Amplifier, Vehicle Multi-Zone Audio, Automotive Audio Reference Platform.
Automotive Head-Unit Amplification
The STPA002HSD-48X fits a four-speaker automotive head-unit design because its four-channel MOSFET Class AB architecture can support separate front and rear loudspeaker drive paths. STMicroelectronics positions the device for high-power car-radio systems and highlights output-current capability, distortion performance, and robustness against fortuitous misconnections. Using one quad amplifier can reduce the number of separate output channels required by the radio platform. The final channel-power budget must be calculated from the actual supply voltage, speaker impedance, thermal conditions, and manufacturer limits. PCB routing should keep speaker outputs separated from audio inputs and sensitive control circuitry, while grounding and decoupling must follow the reference configuration.
Recomendado
Start-Stop Vehicle Radio
The STPA002HSD-48X is appropriate for start-stop vehicle radio platforms where the electrical environment can include unusually low operating voltages during engine transitions. The manufacturer states that the amplifier complies with current OEM specifications for low-voltage operation in start-stop vehicles, making that operating scenario central to the device’s positioning. Four Class AB output channels can serve multiple cabin speakers while retaining linear audio amplification. Engineering validation should include cold-crank behavior, supply excursions, startup sequencing, output stability, and protection recovery. The board must also prevent unintended amplifier behavior if the supply rail falls outside the normal operating window.
Recomendado
Four-Speaker Infotainment System
The STPA002HSD-48X can support a four-channel infotainment architecture in which front-left, front-right, rear-left, and rear-right loudspeakers receive amplified audio from one quad device. Its MOSFET Class AB output stage is intended to balance low distortion with the current capability needed for automotive speaker loads. The manufacturer’s stated robustness against several kinds of fortuitous misconnections is especially relevant where speaker wiring can be connected incorrectly during vehicle assembly or service. Designers should still add appropriate board-level protection where required, verify thermal performance at maximum continuous output, and confirm speaker impedance before layout release.
Recomendado
Automotive Subwoofer Amplifier
The STPA002HSD-48X may be evaluated for an automotive subwoofer stage when the required channel count, output power, thermal capability, and speaker load fall within the device limits. The Class AB topology provides linear loudspeaker drive, while the MOSFET output arrangement is central to the device’s automotive positioning. Because the amplifier is designed as a four-channel car-radio device, one implementation could combine multiple low-power cabin channels with a higher-power subwoofer channel, provided the exact output architecture and per-channel limits support that allocation. Verify continuous and peak dissipation, crossover behavior, and protection thresholds using the manufacturer documentation rather than inferring them from catalog headlines.
Recomendado
Vehicle Multi-Zone Audio
The four-channel format of the STPA002HSD-48X can support multi-zone vehicle audio, such as separate front, rear, and auxiliary cabin zones, when the amplifier topology permits the intended channel allocation. The manufacturer highlights high output-current capability and low distortion performance, both relevant when several automotive loudspeaker loads operate simultaneously. Independent routing or mute control, if required, must be implemented within the exact pin and electrical architecture shown in the datasheet. Layout should maintain symmetric speaker paths where possible, minimize loop area in output wiring, and provide adequate thermal copper around the vertical 27-Flexiwatt package.
Recomendado
Automotive Audio Reference Platform
The STPA002HSD-48X can serve as the power stage in an automotive audio reference platform used to evaluate speaker loading, distortion, fault recovery, and system-level sound quality. Its four outputs allow engineers to monitor several vehicle loudspeaker channels from one amplifier while comparing normal operation with transient or misconnection conditions. The manufacturer’s focus on robustness against fortuitous misconnections makes the device relevant to diagnostic and fault-tolerance testing, although it does not replace application-specific protection requirements. Build the test setup with defined load conditions, calibrated measurement equipment, safe speaker disconnect procedures, and thermal monitoring before conducting continuous-output trials.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para STPA002HSD-48X — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | STPA003HSD-48X |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Package | 27-Flexiwatt vertical | 27-Flexiwatt vertical; exact footprint compatibility requires confirmation |
| Product Type | Audio power amplifier IC | Audio power amplifier IC |
| Primary Application | High-power car radio and automotive infotainment | Automotive audio amplification; exact application requires confirmation |
Principais diferenciais
- Four-channel Class AB integration (vs STPA003HSD-48X)
- MOSFET Class AB automotive positioning (vs STPA003HSD-48X)
- Fortuitous-misconnection robustness (vs STPA003HSD-48X)
Notas de projeto
Treat the vertical 27-Flexiwatt package as a thermal design constraint, not merely a mechanical choice. Estimated: maximum continuous dissipation equals the sum of each channel’s output power divided by the amplifier efficiency, plus bias and quiescent losses; the calculated result must remain below the package and board temperature limits. Use the manufacturer thermal-resistance and derating data for the actual copper area, airflow, ambient temperature, and mounting orientation before assigning maximum output power.
Follow the manufacturer reference layout for the 27-Flexiwatt vertical footprint and confirm every numbered terminal against the STPA002 datasheet before fabrication. Keep loudspeaker output and power-supply paths away from audio inputs and control traces, minimize loop area, and use a low-impedance ground return. Place input filtering, supply decoupling, and output-network components at the locations specified by the reference design so that protection, stability, and distortion performance are preserved.
Do not infer short-circuit tolerance from the word ‘robust’ without identifying which misconnection conditions the manufacturer tested. Confirm speaker impedance, maximum speaker wiring length, ground topology, supply transients, and enable or mute behavior from the datasheet. The STPA002 is intended for automotive low-voltage systems, so verify start-stop operating requirements and cold-crank behavior across the complete vehicle power profile rather than testing only at a nominal battery voltage.
Audio power stages can couple speaker-current transients into sensitive signal paths. Route each output according to the reference design, keep input and feedback traces short, and provide a stable star or dedicated return path for amplifier current. Decoupling capacitors must be placed with very low trace inductance at the intended supply pins. Validate the completed board with output short-circuit, startup, thermal, and audio-frequency measurements because schematic connectivity alone does not establish layout robustness.
Informações de conformidade
The component listing states that RoHS is supported. No specific AEC-Q100 grade, REACH declaration, lead-free statement, halogen-free statement, or conflict-minerals declaration was identified in the product records.