Overview
The TDA7293HS, produced by STMicroelectronics, is a high-performance, monolithic integrated circuit designed for use as an audio class AB amplifier. It is particularly suited for Hi-Fi field applications such as home stereo systems, self-powered loudspeakers, and high-end TV audio systems. This amplifier leverages DMOS power stage technology and BCDII 100/120 high voltage technology, offering high output power, low distortion, and robust protection features.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | ±12 to ±50 | V |
| Continuous Output Power (RL = 8 Ω, THD = 10%) | 100 | W |
| Continuous Output Power (RL = 4 Ω, THD = 10%) | 100 | W |
| Total Harmonic Distortion (PO = 0.1 to 50 W, f = 20 Hz to 15 kHz) | 0.1 | % |
| Quiescent Current | 50 to 100 | mA |
| Input Bias Current | 0.3 to 1 | µA |
| Input Offset Voltage | -10 to 10 | mV |
| Thermal Shutdown Temperature | 160 | °C |
| Maximum Ambient Temperature | 70 | °C |
| Package Type | Multiwatt15 |
Key Features
- Multipower BCD Technology: Utilizes BCDII 100/120 high voltage technology for high performance and reliability.
- High Operating Voltage Range: Supports ±50 V supply voltage, enabling high output power into both 4-Ω and 8-Ω loads.
- DMOS Power Stage: DMOS transistors provide high current and voltage handling capabilities with low harmonic distortion.
- Muting and Standby Functions: Independent CMOS logic compatible input pins for mute and standby operations, ensuring no switch-on/off noise.
- Protection Features: Includes short-circuit protection, thermal shutdown, and clip detector to ensure device safety.
- Modularity: Allows multiple devices to be connected in parallel to drive very low impedance loads.
- Low Distortion and Noise: Very low total harmonic distortion and noise levels, ensuring high-quality audio output.
Applications
The TDA7293HS is ideal for various Hi-Fi applications, including:
- Home stereo systems
- Self-powered loudspeakers
- High-end TV audio systems
- Car audio systems
It is also suitable for high-efficiency amplifier designs, particularly where high power output and low power dissipation are critical.
Q & A
- What is the maximum output power of the TDA7293HS?
The TDA7293HS can deliver up to 100 W of continuous output power into 8 Ω loads with THD = 10% and VS = ±40 V.
- What is the supply voltage range for the TDA7293HS?
The supply voltage range is ±12 to ±50 V.
- Does the TDA7293HS have built-in protection features?
- Can multiple TDA7293HS devices be connected in parallel?
- What is the quiescent current of the TDA7293HS?
The quiescent current ranges from 50 to 100 mA.
- What is the thermal shutdown temperature of the TDA7293HS?
The device shuts down at a junction temperature of 160 °C.
- Does the TDA7293HS have mute and standby functions?
- What is the maximum ambient temperature for the TDA7293HS?
The maximum ambient temperature is 70 °C.
- What type of technology is used in the TDA7293HS?
- Is the TDA7293HS suitable for high-efficiency amplifier designs?
