TDA7376PDTR - 2x38W Audio Amplifier | STMicroelectronics
N.º de pieza: TDA7376PDTR ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $46.3636 | $46,36 |
| 10 | $33.4848 | $334,85 |
| 100 | $29.6212 | $2.962,12 |
| 500 | $28.3333 | $14.166,65 |
| 1.000 | $27.0455 | $27.045,50 |
TDA7376PDTR Descripción general
An audio power amplifier is an electronic device that increases the amplitude of low-power audio signals to a level sufficient to drive loudspeakers. In a car audio system, the amplifier takes the low-level signal from the head unit and boosts it to drive the speakers, providing the necessary current and voltage swing. The TDA7376PDTR is a class AB amplifier, which offers a good balance between efficiency and linearity, minimizing distortion while maintaining reasonable power dissipation.
Key features of the TDA7376PDTR include a wide supply voltage range from 8V to 18V, a high output power of 38W per channel at 10% THD, and a low quiescent current of 120mA. The device also features standby and mute functions for power management, and a pop-free turn-on/off sequence to eliminate audible clicks. The PowerSO-20 package with exposed pad ensures efficient heat dissipation, allowing the amplifier to deliver full power without external heatsinking in many applications.
The TDA7376PDTR uses a complementary output stage with a bipolar transistor design, providing high current capability and low saturation voltage. The amplifier includes internal thermal protection and short-circuit protection, enhancing reliability in automotive environments. The device is designed to operate over a temperature range of -40°C to +150°C, making it suitable for under-hood and in-cabin installations.
Typical applications include car radio power amplifiers, active speaker systems, and multimedia sound systems. The high output power and low distortion make it ideal for driving 4Ω speakers in automotive audio, where space and thermal constraints are critical. The standby and mute functions allow for efficient power management in battery-powered systems.
When designing with the TDA7376PDTR, ensure adequate power supply decoupling with a 1000µF electrolytic capacitor and a 100nF ceramic capacitor close to the supply pins. The exposed pad must be soldered to a large copper area for thermal management. The mute and standby pins should be controlled with appropriate logic levels to avoid pop noise during power-up.
Alternativas directas para TDA7376PDTR — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
E-TDA7377
✓ En stock
$1.1924 / unidad
Ver hoja de datos →TDA7376PD
📋 Alternativa de referencia (no en el catálogo)
E-TDA7375AV
✓ En stock
$2.7 / unidad
Ver hoja de datos →TDA7379
✓ En stock
$1.39 / unidad
Ver hoja de datos →TDA7376B
📋 Alternativa de referencia (no en el catálogo)
TDA7376PDTR Valores máximos y características eléctricas
| Output Power | 38W per channel at 4Ω, 14.4V, 10% THD |
| Supply Voltage Range | 8V to 18V |
| Corriente en reposo | 120mA |
| Total Harmonic Distortion | 0.03% at 1W, 1kHz |
| Ruido de salida | 10µV |
| Channel Separation | 60dB |
| Input Impedance | 100kΩ |
| Standby Current | 1µA |
| Mute Attenuation | 80dB |
| Rango de temperatura de funcionamiento | -40°C to +150°C |
| Encapsulado | PowerSO-20 |
| Tipo de montaje | Surface Mount |
| Thermal Resistance (junction-to-case) | 1.5°C/W |
| Estado RoHS | Compliant |
| Protection Features | Thermal shutdown, short-circuit protection |
Configuración de pines de TDA7376PDTR
| Pin 1 | OUT1 — Output channel 1 |
| Pin 2 | GND — Ground |
| Pin 3 | IN1 — Input channel 1 |
| Pin 4 | SVR — Supply voltage ripple rejection |
| Pin 5 | IN2 — Input channel 2 |
| Pin 6 | GND — Ground |
| Pin 7 | OUT2 — Output channel 2 |
| Pin 8 | VS — Power supply |
| Pin 9 | STBY — Standby control |
| Pin 10 | MUTE — Mute control |
| Pin 11 | GND — Ground |
| Pin 12 | OUT2 — Output channel 2 |
| Pin 13 | GND — Ground |
| Pin 14 | IN2 — Input channel 2 |
| Pin 15 | SVR — Supply voltage ripple rejection |
| Pin 16 | IN1 — Input channel 1 |
| Pin 17 | GND — Ground |
| Pin 18 | OUT1 — Output channel 1 |
| Pin 19 | VS — Power supply |
| Pin 20 | GND — Ground |
Aplicaciones típicas
TDA7376PDTR es adecuado para 6 aplicacións: Car Radio Power Amplifier, Active Speaker System, Multimedia Sound System, Subwoofer Amplifier, Portable PA System, Gaming Console Audio.
Car Radio Power Amplifier
The TDA7376PDTR is ideal for car radio power amplifiers, delivering 38W per channel into 4Ω speakers. Its wide supply voltage range (8V-18V) accommodates automotive electrical system variations, and the standby/mute functions enable efficient power management. The low quiescent current (120mA) minimizes battery drain when the radio is on but no audio is playing. The high output power ensures clear, loud audio even in noisy vehicle environments. The thermal protection and short-circuit protection enhance reliability in the harsh automotive environment. The PowerSO-20 package with exposed pad allows efficient heat dissipation, ensuring continuous operation without thermal shutdown. The low THD (0.03%) ensures high-fidelity sound reproduction, making it suitable for premium car audio systems.
Recomendado
Active Speaker System
In active speaker systems, the TDA7376PDTR drives the woofer and tweeter with its dual channels. The high output power (38W per channel) provides sufficient volume for home or professional use. The low distortion ensures accurate sound reproduction, and the mute function allows for silent operation when needed. The standby mode reduces power consumption when the speaker is not in use, making it energy-efficient. The wide supply voltage range allows it to be powered from various sources, such as a 12V battery or a 24V DC supply. The thermal protection ensures safe operation even during prolonged high-power output. The compact PowerSO-20 package enables space-saving designs in active speakers.
Recomendado
Multimedia Sound System
The TDA7376PDTR is used in multimedia sound systems to amplify audio from TVs, computers, or gaming consoles. Its dual-channel output allows for stereo sound, and the high output power ensures immersive audio experiences. The low THD and high channel separation (60dB) provide clear and distinct left and right channels. The standby and mute functions are useful for power management in multimedia devices. The wide supply voltage range makes it compatible with various power supplies. The thermal protection ensures reliable operation during extended use. The PowerSO-20 package is suitable for compact multimedia devices.
Recomendado
Subwoofer Amplifier
The TDA7376PDTR can be used as a subwoofer amplifier by bridging the two channels to deliver higher power to a single subwoofer. In bridge mode, it can deliver up to 76W into a 4Ω load, providing deep bass response. The high output current capability and low distortion ensure accurate bass reproduction. The thermal protection prevents overheating during high-power bass output. The standby mode reduces power consumption when the subwoofer is not in use. The wide supply voltage range allows it to be used in car or home subwoofer systems. The PowerSO-20 package with exposed pad ensures efficient heat dissipation.
Recomendado
Portable PA System
The TDA7376PDTR is suitable for portable PA systems, providing high output power to drive speakers for public address. Its low quiescent current and standby mode extend battery life, making it ideal for battery-powered PA systems. The wide supply voltage range allows it to be powered from various battery configurations. The thermal protection ensures safe operation during continuous use. The compact package enables portable designs. The low THD ensures clear voice reproduction, which is critical for public address applications.
Recomendado
Gaming Console Audio
The TDA7376PDTR can be used in gaming consoles to amplify audio output to external speakers. Its high output power and low distortion provide an immersive gaming experience. The mute function is useful for muting the audio during gameplay. The standby mode reduces power consumption when the console is in standby. The wide supply voltage range makes it compatible with various console power supplies. The thermal protection ensures reliable operation during long gaming sessions. The PowerSO-20 package is suitable for compact console designs.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para TDA7376PDTR — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | TDA7376PD | TDA7375 | TDA7377 | TDA7379 |
|---|---|---|---|---|---|
| Package | PowerSO-20 | PowerSO-20 | PowerSO-20 | PowerSO-20 | PowerSO-20 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Output Power (per channel) | 38W | 38W | 20W | 20W | 40W |
| Supply Voltage Range | 8V to 18V | 8V to 18V | 8V to 18V | 8V to 18V | 8V to 18V |
| Quiescent Current | 120mA | 120mA | 100mA | 100mA | 150mA |
| THD at 1W | 0.03% | 0.03% | 0.05% | 0.05% | 0.02% |
| Standby Current | 1µA | 1µA | 1µA | 1µA | 1µA |
| Mute Attenuation | 80dB | 80dB | 80dB | 80dB | 80dB |
Diferenciadores clave
- Higher output power than TDA7375 and TDA7377 (frente a TDA7375)
- Lower THD than TDA7375 and TDA7377 (frente a TDA7377)
- Same package and pinout as TDA7379 but lower power (frente a TDA7379)
Notas de diseño
Ensure adequate power supply decoupling. Use a 1000µF electrolytic capacitor and a 100nF ceramic capacitor in parallel close to the VS pins. This minimizes power supply ripple and ensures stable operation, especially during high-power output.
The PowerSO-20 package has a thermal resistance of 1.5°C/W (junction-to-case). For continuous operation at 38W per channel, the power dissipation can be significant. Solder the exposed pad to a large copper area on the PCB to enhance heat dissipation. Consider adding a heatsink if the ambient temperature is high.
Keep the input signal traces short and away from the output traces to minimize crosstalk. Use a ground plane to reduce noise. Place the mute and standby control pins with appropriate pull-up or pull-down resistors to ensure defined logic levels.
Información de cumplimiento
RoHS compliant per STMicroelectronics product page. AEC-Q100 not applicable for this audio amplifier.
