STA515W13TR - 40V 3A Quad Class-D Amp | STMicroelectronics
N.º de pieza: STA515W13TR ✓ ActivoSTA515W13TR Descripción general
A Class-D audio power amplifier is a switching power stage that efficiently converts a digital or analog audio command signal into a full-bridge or half-bridge speaker output. In the power-management hierarchy, the STA515W13TR belongs to the amplifier IC family, supports digital audio amplification, and implements a multipower BCD semiconductor process combining control logic, bipolar circuitry, and DMOS output transistors. Its quad-half-bridge architecture allows one device to support stereo, multichannel, or independently configured output arrangements.
The key electrical characteristics include a 40 V maximum supply rating, 3 A output capability, and a configurable 200 mΩ complementary DMOS output stage. The device can operate as a dual bridge or be reconfigured by connecting the CONFIG pin to VDD, creating a single bridge with double-current capability. This flexibility makes the part useful when a common amplifier board must serve several loudspeaker-impedance and channel-count requirements.
Protection and diagnostic functions include thermal protection, a thermal warning output, undervoltage protection, and short-circuit protection. These functions support more robust behavior during startup, speaker-load transients, thermal stress, or wiring faults. The low input and output pulse-width distortion characteristics are important for preserving waveform fidelity, while the integrated protection circuitry reduces reliance on external discrete safeguards for common overload conditions.
Typical uses include stereo all-digital high-efficiency amplifiers, powered speakers, soundbars, compact consumer audio systems, and multichannel home-audio equipment. The 3 A output-stage rating is particularly relevant to speaker drive where system impedance, supply voltage, thermal dissipation, and amplifier configuration determine actual continuous output capability. The exposed thermal pad supports heat transfer from the power output circuitry to the PCB copper area.
Layout is the primary implementation constraint for this power amplifier. Keep the exposed pad and high-current output paths compact, provide adequate copper for thermal conduction, decouple the supply close to VDD and ground pins, and route speaker outputs as short and wide as practical. The CONFIG connection and logic interfaces require clean signal routing away from switching output nodes to reduce switching-edge coupling and unintended audio interference.
This product overview consolidates the manufacturer’s device architecture, protection features, configuration options, and practical PCB considerations into an engineering-oriented selection guide. For a definitive replacement, engineers should verify the complete pin map, electrical limits, exposed-pad layout, thermal conditions, and speaker-load requirements in the manufacturer datasheet rather than relying only on headline ratings.
Alternativas directas para STA515W13TR — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
No hay alternativas directas disponibles para este producto.
Solicitar alternativasSTA515W13TR Valores máximos y características eléctricas
| Device Type | Quad power half-bridge digital audio amplifier |
| Amplifier Class | Class D |
| Maximum Supply Voltage | 40 V |
| Output Current | 3 A |
| Configuración de salida | Four half-bridges, reconfigurable as a single bridge with double-current capability |
| Process Technology | Multipower BCD technology |
| Output Transistor Type | Complementary DMOS |
| Output Stage RDS(on) | 200 mΩ |
| Logic Input Compatibility | CMOS-compatible |
| Pulse-Width Distortion | Low input and output pulse-width distortion |
| Thermal Protection | Integrated |
| Thermal Warning | Dedicated warning output |
| Undervoltage Protection | Integrated |
| Short-Circuit Protection | Integrated |
| Encapsulado | 36-lead PowerSSO-36 EPD with exposed pad |
| Tipo de montaje | Surface mount |
| Estado RoHS | Compliant |
Guía de configuración de pines de STA515W13TR 36-lead powersso-36 epd with exposed pad
Configuración de pines para STA515W13TR (encapsulado 36-lead powersso-36 epd with exposed pad). Este componente analógico presenta pines de entrada, salida y alimentación. Consulte la hoja de datos del fabricante para conocer las configuraciones de los pines de ajuste de offset, compensación y habilitación. Ideal para circuitos de acondicionamiento de señal y amplificadores.
No hay datos detallados de patillaje disponibles para STA515W13TR.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
STA515W13TR es adecuado para 6 aplicacións: Stereo All-Digital Powered Speakers, Multichannel Home-Audio Amplifier, Soundbar Speaker Drivers, Powered Speaker Monitor, Compact Consumer Audio System, Digital Audio Amplifier Output Module.
Stereo All-Digital Powered Speakers
The STA515W13TR fits compact stereo speaker designs because its four power half-bridges can be arranged as dual bridges for two amplified channels. The 40 V supply rating and 3 A output capability suit speaker-drive stages requiring substantial output current without multiple discrete amplifier packages. Its low input and output pulse-width distortion supports faithful reproduction of the incoming digital audio waveform, while integrated thermal, undervoltage, and short-circuit protection adds resilience during startup and overload conditions. The exposed pad requires substantial PCB copper for heat removal.
Multichannel Home-Audio Amplifier
For multichannel home-audio equipment, the STA515W13TR provides four Class-D half-bridges that can support several amplified outputs from one power package. Its configurable architecture allows a board designer to use dual-bridge operation or combine outputs through the documented CONFIG arrangement when a single bridge with double-current capability is appropriate. The 200 mΩ complementary DMOS output stage provides the core switching functionality, while the integrated protections address common thermal and speaker-load faults. Channel filtering and output routing must be designed for the selected Class-D topology.
Soundbar Speaker Drivers
The STA515W13TR is suitable for soundbar power-amplifier modules that need several speaker drive stages in a restricted PCB area. Its quad-half-bridge arrangement can simplify channel allocation and reduce board-level component count compared with multiple single-channel output packages. The 3 A rating provides a defined device-level current target, but usable continuous audio power still depends on the 40 V-class supply, speaker impedance, modulation method, filter design, and PCB thermal performance. The exposed pad should be connected to a carefully designed thermal copper area.
Powered Speaker Monitor
A powered studio or home monitor can use the STA515W13TR as a high-efficiency Class-D output stage for left and right channels. The device’s low pulse-width distortion characteristics support signal fidelity, while CMOS-compatible control inputs simplify interfacing with digital audio processors. Integrated short-circuit and thermal protection help manage common speaker-wiring and thermal faults. Designers should account for EMI around the switching outputs, preserve quiet logic routing, and use the manufacturer’s recommended output-filter and thermal-layout guidance.
Compact Consumer Audio System
The STA515W13TR fits compact consumer-audio systems requiring efficient multi-channel amplification in one package. A four-half-bridge device can support stereo, multichannel, or a mixed configuration depending on PCB routing and the selected CONFIG state. The Multipower BCD implementation combines control logic and power-DMOS functions, while integrated undervoltage protection supports predictable operation during power transitions. Actual acoustic output remains tied to supply voltage, speaker impedance, output filtering, and the amplifier’s thermal limits, so those parameters must be validated together.
Digital Audio Amplifier Output Module
The STA515W13TR can serve as the output stage in an all-digital audio amplifier, where a digital audio engine provides the modulation command and the quad half-bridges deliver high-efficiency speaker current. This architecture separates signal generation from power conversion and supports efficient Class-D operation. The CONFIG pin permits alternative bridge organization, but firmware and board design must match the selected topology. Layout should minimize loop area, keep sensitive logic away from switching nodes, and provide robust thermal coupling through the exposed pad.
Datos de referencia de ingeniería para STA515W13TR — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Do not substitute the part solely because another IC is also described as a quad Class-D amplifier. A drop-in alternative must reproduce the 36-lead PowerSSO-36 EPD footprint, exposed pad, pin functions, CONFIG logic, electrical limits, and protection behavior. No distinct orderable drop-in MPN was confirmed for the STA515W13TR, so a functional replacement should be treated as a redesign candidate until its complete pin and thermal compatibility has been verified. For applications requiring more than 3 A per configured output, lower-voltage operation, or a different package footprint, select a device whose ratings and land pattern match the design requirements.
Comparación con alternativas
| Parámetro | Este producto |
|---|---|
| Brand | STMicroelectronics |
| Package | PowerSSO-36 EPD with exposed pad |
| Device Type | Quad power half-bridge digital audio amplifier |
| Amplifier Class | Class D |
| Maximum Supply Voltage | 40 V |
| Output Current | 3 A |
| Output Stage | Complementary DMOS with 200 mΩ RDS(on) |
| Output Configuration | Dual bridge or single bridge with double-current capability through CONFIG |
| Integrated Protections | Thermal protection, thermal warning, undervoltage protection, and short-circuit protection |
| Process Technology | Multipower BCD |
Diferenciadores clave
- Four integrated Class-D power half-bridges (frente a Generic single-channel or dual-channel Class-D amplifier)
- Configurable bridge organization (frente a Fixed dual-bridge audio output stage)
- Integrated protection and diagnostic functions (frente a Power stage requiring separate protection circuitry)
- Defined power-stage specifications (frente a General-purpose comparator or MOSFET output stage)
Notas de diseño
Treat the exposed pad as the primary thermal path for the Class-D output stage. Place the device over a continuous copper region rather than a fragmented thermal area, follow the manufacturer’s exposed-pad land pattern, and provide thermal vias only where the recommended pattern permits them. Estimate dissipated power from output-stage conduction, switching loss, quiescent loss, and the actual supply-to-output differential before sizing the copper area. Verify junction temperature under worst-case continuous output rather than at nominal signal level.
Keep the power-supply loop between VDD and ground compact, place high-frequency decoupling close to the relevant pins, and use wide copper paths for current-carrying nodes. Route the four switching outputs as short and wide as practical, with their return-current paths controlled to minimize loop area. Keep CONFIG, logic inputs, and warning signals away from high dv/dt output nodes. A grounded guard or careful placement of quiet traces can further reduce switching-edge coupling into the audio command path.
Do not assume that the 3 A rating guarantees identical continuous output power for every speaker impedance, supply voltage, bridge configuration, or cooling method. Confirm the CONFIG state, output-filter topology, thermal limits, and speaker impedance before layout release. Also verify that the PCB land pattern includes the exposed pad and that assembly-process rules provide sufficient solder formation without interfering with the thermal-copper design.
Class-D output nodes switch continuously and can radiate or couple energy into nearby circuits. Keep output-filter components close to the appropriate output pins, maintain a compact switching-current loop, and avoid routing sensitive audio, control, or sensor traces beneath output and supply paths. Use the manufacturer’s recommended filter and layout references as the starting point, then validate conducted and radiated emissions with the final enclosure, speaker cable, and power-supply arrangement.
Información de cumplimiento
The technical listing identifies the STA515W13TR as RoHS compliant. RoHS status does not by itself establish REACH, lead-free, halogen-free, or conflict-minerals declarations.
