Overview
The TDA7294V is a high-performance monolithic integrated circuit designed by STMicroelectronics for use as an audio class AB amplifier. It is packaged in the Multiwatt15 format and is intended for Hi-Fi field applications such as home stereo systems, self-powered loudspeakers, and top-class TV systems. The amplifier boasts a wide operating voltage range and high output current capability, making it suitable for delivering high power into both 4Ω and 8Ω loads, even with poor supply regulation.
Key Specifications
| Type | Class AB |
|---|---|
| Output Type | Mono |
| Gain Bandwidth Product | 20 kHz |
| Gain | 30 dB |
| Supply Voltage (Max) | ±50 V |
| Output Power | Up to 100 W (music power) |
| Operating Temperature Range | 0°C to 70°C |
| Power Supply Rejection Ratio | 75 dB |
| Total Harmonic Distortion | 0.1% |
| Output Peak Current | 10 A |
| Total Power Dissipation (Tcase= 70°C) | 50 W |
| Thermal Resistance Junction-case | 1.5 °C/W |
| Package Style | MULTIWATT-15 |
| Mounting Method | Through Hole |
Key Features
- Very high operating voltage range (±40 V)
- DMOS power stage
- High output power (up to 100 W music power)
- Muting/stand-by functions
- No switch on/off noise
- No Boucherot cells
- Very low distortion
- Very low noise
- Short circuit protection
- Thermal shutdown
Applications
The TDA7294V is suitable for a variety of high-fidelity audio applications, including:
- Home stereo systems
- Self-powered loudspeakers
- Top-class TV systems
- Professional audio equipment such as mixing consoles and studio monitors
- Automotive audio systems
- Healthcare equipment requiring clear and reliable audio
- HI-FI/TV subwoofers in bridge configuration
Q & A
- What is the maximum output power of the TDA7294V?
The TDA7294V can deliver up to 100 W of music power.
- What is the operating voltage range of the TDA7294V?
The operating voltage range is ±40 V.
- What type of power stage does the TDA7294V use?
The TDA7294V uses a DMOS power stage.
- Does the TDA7294V have mute and stand-by functions?
Yes, it includes muting and stand-by functions.
- What is the thermal shutdown feature of the TDA7294V?
The TDA7294V has a thermal shutdown feature to protect against overheating.
- Can the TDA7294V be used in bridge configuration?
Yes, it can be used in bridge configuration for higher power applications, such as HI-FI/TV subwoofers.
- What is the maximum operating temperature of the TDA7294V?
The maximum operating temperature is 70°C.
- What is the power supply rejection ratio of the TDA7294V?
The power supply rejection ratio is 75 dB.
- Does the TDA7294V have short circuit protection?
Yes, it includes short circuit protection.
- What is the typical quiescent current of the TDA7294V?
The typical quiescent current is 30 mA.
- What package style does the TDA7294V come in?
The TDA7294V comes in the Multiwatt15 package style.
