Overview
The TDA7492 is a dual BTL class-D audio amplifier designed by STMicroelectronics, specifically tailored for use in LCD TVs and monitors. This amplifier is notable for its high efficiency and the use of an exposed-pad-up (EPU) package, which requires only a simple heatsink for thermal management. The TDA7492 operates on a wide-range single power supply from 8 to 26 volts, making it versatile for various audio applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Continuous Output Power (THD = 10%, RL = 6 Ω, VCC = 25 V) | 50 W + 50 W | W |
| Continuous Output Power (THD = 10%, RL = 8 Ω, VCC = 25 V) | 40 W + 40 W | W |
| Supply Voltage Range | 8 - 26 | V |
| Efficiency | 90% | % |
| Gain Settings | 21.6 dB, 27.6 dB, 31.1 dB, 33.6 dB | dB |
| Operating Temperature Range | -40 to +85 | °C |
| Junction Temperature Range | -40 to +150 | °C |
| Package Type | PowerSSO-36 EPU |
Key Features
- High efficiency (η = 90%)
- Four selectable, fixed gain settings of nominally 21.6 dB, 27.6 dB, 31.1 dB, and 33.6 dB
- Differential inputs to minimize common-mode noise
- Standby and mute features
- Short-circuit protection and thermal overload protection
- Externally synchronizable
- ECOPACK®, environmentally friendly package
Applications
The TDA7492 is primarily designed for use in LCD TVs and monitors, but its high efficiency and versatile power supply range make it suitable for other audio applications requiring high-quality, low-distortion sound output.
Q & A
- What is the TDA7492?
The TDA7492 is a dual BTL class-D audio amplifier designed by STMicroelectronics.
- What are the continuous output power specifications of the TDA7492?
It can deliver 50 W + 50 W at THD = 10% with RL = 6 Ω and VCC = 25 V, and 40 W + 40 W at THD = 10% with RL = 8 Ω and VCC = 25 V.
- What is the operating voltage range of the TDA7492?
The TDA7492 operates on a single power supply from 8 to 26 volts.
- What are the gain settings available on the TDA7492?
The amplifier has four selectable, fixed gain settings of nominally 21.6 dB, 27.6 dB, 31.1 dB, and 33.6 dB.
- Does the TDA7492 have any protection features?
Yes, it includes short-circuit protection and thermal overload protection.
- Is the TDA7492 environmentally friendly?
Yes, it comes in an ECOPACK®, environmentally friendly package.
- What is the package type of the TDA7492?
The TDA7492 is packaged in a PowerSSO-36 EPU (exposed-pad-up) package.
- What are the typical applications of the TDA7492?
It is primarily used in LCD TVs and monitors but can be applied to other audio systems requiring high-quality sound output.
- How efficient is the TDA7492?
The TDA7492 has a high efficiency of 90%.
- Can the TDA7492 be externally synchronized?
Yes, the TDA7492 is externally synchronizable.
