TDA7376PDTR - 2x38W Audio Amplifier | STMicroelectronics
MPN: TDA7376PDTR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.5 | $3.50 |
| 10 | $3.15 | $31.50 |
| 100 | $2.8 | $280.00 |
| 500 | $2.5 | $1,250.00 |
| 1,000 | $2.2 | $2,200.00 |
Drop-in alternatives for TDA7376PDTR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TDA7376PD
✅ Drop-In📋 Reference alternative (not in catalog)
TDA7375
✅ Drop-In📋 Reference alternative (not in catalog)
E-TDA7377
✅ Drop-In✓ 99,999 In Stock
$2.25 / Unit
View Datasheet →TDA7379
✅ Drop-In📋 Reference alternative (not in catalog)
TDA7376B
✅ Drop-In📋 Reference alternative (not in catalog)
TDA7376PDTR Maximum Ratings & Electrical Characteristics
| Output Power | 38W per channel at 4Ω, 14.4V, 10% THD |
| Supply Voltage Range | 8V to 18V |
| Quiescent Current | 120mA |
| Total Harmonic Distortion | 0.03% at 1W, 1kHz |
| Output Noise | 10µV |
| Channel Separation | 60dB |
| Input Impedance | 100kΩ |
| Standby Current | 1µA |
| Mute Attenuation | 80dB |
| Operating Temperature Range | -40°C to +150°C |
| Package | PowerSO-20 |
| Mounting Type | Surface Mount |
| Thermal Resistance (junction-to-case) | 1.5°C/W |
| RoHS Status | Compliant |
| Protection Features | Thermal shutdown, short-circuit protection |
TDA7376PDTR Pin Configuration
| 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 |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TDA7376PDTR is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for TDA7376PDTR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- Higher output power than TDA7375 and TDA7377 (vs TDA7375)
- Lower THD than TDA7375 and TDA7377 (vs TDA7377)
- Same package and pinout as TDA7379 but lower power (vs TDA7379)
Design Notes
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.
Compliance Information
RoHS compliant per STMicroelectronics product page. AEC-Q100 not applicable for this audio amplifier.
