Overview
The TDA7296 is a monolithic integrated circuit designed by STMicroelectronics, intended for use as an audio class AB amplifier in Hi-Fi field applications. It is housed in a Multiwatt15 package and features advanced technologies such as Multipower BCD and DMOS power stage. This amplifier is suitable for various applications including home stereo systems, self-powered loudspeakers, and high-class TV audio systems. The TDA7296 is known for its high operating voltage range, high output power, and low distortion, making it a robust and reliable choice for audio amplification needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (No Signal) | ±35 | V |
| Output Peak Current | 5 | A |
| Power Dissipation (Tcase = 70°C) | 50 | W |
| Operating Ambient Temperature Range | 0 to 70 | °C |
| Storage Temperature | -40 to 150 | °C |
| Junction Temperature | 150 | °C |
| Thermal Resistance Junction-case | 1 to 1.5 | °C/W |
| Quiescent Current | 20 to 65 | mA |
| Input Bias Current | 500 nA | nA |
| Input Offset Voltage | -10 to 10 | mV |
| Open Loop Voltage Gain | 80 dB | dB |
| Closed Loop Voltage Gain | 24 to 40 | dB |
| Total Input Noise | 1 to 5 | µV |
| Frequency Response (-3 dB) | 20 Hz to 20 kHz | Hz |
| Input Resistance | 100 kΩ | kΩ |
| Supply Voltage Rejection | 60 to 75 dB | dB |
| Thermal Shutdown | 145 °C | °C |
Key Features
- Multipower BCD technology
- Very high operating voltage range (±35 V)
- DMOS power stage
- High output power (up to 60 W music power)
- Muting and standby functions with turn-on delay
- No switch on/off noise
- No Boucherot cells
- Very low distortion and noise
- Short-circuit protection
- Thermal shutdown
Applications
The TDA7296 is designed for various Hi-Fi field applications, including:
- Home stereo systems
- Self-powered loudspeakers
- High-class TV audio systems
- HI-FI/TV subwoofers in bridge configuration
Its high power performance and ability to handle high load values make it suitable for demanding audio applications.
Q & A
- What is the maximum supply voltage for the TDA7296?
The maximum supply voltage for the TDA7296 is ±35 V.
- What is the maximum output power of the TDA7296?
The TDA7296 can deliver up to 60 W of music power.
- Does the TDA7296 have built-in protection features?
Yes, it includes short-circuit protection and thermal shutdown.
- What are the muting and standby functions of the TDA7296?
The TDA7296 features muting and standby functions with turn-on delay to avoid switching on/off noises.
- What is the typical quiescent current of the TDA7296?
The typical quiescent current is between 20 to 65 mA.
- What is the thermal shutdown temperature of the TDA7296?
The thermal shutdown temperature is 145 °C.
- Can the TDA7296 be used in bridge configuration?
Yes, it can be used in bridge configuration for higher power output, particularly suitable for HI-FI/TV subwoofers.
- What is the input resistance of the TDA7296?
The input resistance is 100 kΩ.
- What is the frequency response of the TDA7296?
The frequency response is from 20 Hz to 20 kHz.
- Is the TDA7296 suitable for high-load applications?
Yes, it can supply high power into both 4 Ω and 8 Ω loads, even with poor supply regulation.
