Overview
The TDA7295 is a monolithic integrated circuit produced by STMicroelectronics, designed for use as an audio class AB amplifier in Hi-Fi field applications. It is packaged in a Multiwatt15 configuration and is suitable for various high-fidelity audio systems, including home stereos, self-powered loudspeakers, and top-class TV systems. The amplifier features a wide operating voltage range (±40V) and high output current capability, enabling it to supply high power into both 4Ω and 8Ω loads, even with poor supply regulation. The built-in muting function with turn-on delay eliminates switching on-off noises, making remote operation simpler.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | ±40 | V |
| Output Peak Current | 6 | A |
| Power Dissipation (Tcase = 70°C) | 50 | W |
| Operating Ambient Temperature Range | 0 to 70 | °C |
| Storage and Junction Temperature | 150 | °C |
| Maximum Output Power | 80 | W |
| Supply Voltage Rejection Ratio (PSRR) | 75 | dB |
| Package Type | Multiwatt15 (Vertical, Bent and Staggered Leads) | |
| Number of Pins | 15 |
Key Features
- Thermal Shutdown: Protects the device from overheating.
- Short-Circuit Protection: Safeguards against short-circuit conditions.
- Very Low Distortion: Ensures high-quality audio output.
- No Boucherot Cells: Reduces complexity and improves stability.
- Very High Operating Voltage Range (±40V): Allows for flexible power supply configurations.
- High Output Power (Up to 80W Music Power): Suitable for high-fidelity audio applications.
- DMOS Power Stage: Provides efficient and reliable power handling.
- No Switch On/Off Noise: Eliminates noise during power-on and power-off cycles.
- Very Low Noise: Enhances overall audio quality.
- Muting/Stand-by Functions: Allows for remote operation and power management.
Applications
- Hi-Fi Systems: Home stereos, self-powered loudspeakers, and top-class TV systems.
- Car Radios: Suitable for automotive audio systems.
- Bridge Application Circuit: Can be used in bridge configurations for higher power output.
- Stereo Systems: Ideal for stereo amplifiers and subwoofers.
Q & A
- What is the TDA7295?
The TDA7295 is a monolithic integrated circuit DMOS audio amplifier with mute and standby, designed for use in Hi-Fi field applications as an audio class AB amplifier.
- What is the maximum output power of the TDA7295?
The TDA7295 can deliver up to 80W of music power.
- What is the operating voltage range of the TDA7295?
The TDA7295 operates within a voltage range of ±40V.
- Does the TDA7295 have built-in protection features?
Yes, it includes thermal shutdown, short-circuit protection, and full protection against electrostatic discharges on every pin.
- Can the TDA7295 be used in bridge configurations?
Yes, the TDA7295 can be used in bridge configurations to achieve higher power output.
- What are the key features of the TDA7295's power stage?
The power stage is based on DMOS technology, providing high efficiency and reliability. It also features very low distortion and very low noise.
- How does the muting function work on the TDA7295?
The built-in muting function with turn-on delay eliminates switching on-off noises, simplifying remote operation.
- What is the package type of the TDA7295?
The TDA7295 is packaged in a Multiwatt15 configuration with vertical, bent, and staggered leads.
- Can the TDA7294 be directly replaced with the TDA7295?
The TDA7294 has higher power and heat dissipation requirements, so it can be directly replaced in general applications but may require adjustments for specific use cases.
- What are some equivalent components to the TDA7295?
Equivalent components include the TDA7293, TDA7294, LM3886, and NTE7165.
