Overview
The TDA7492P is a dual BTL class-D audio amplifier produced by STMicroelectronics. It is designed for use in LCD TVs and monitors, offering high efficiency and a single power supply operation. The amplifier features an exposed-pad-down (EPD) package, which eliminates the need for a heatsink due to its high efficiency.
Key Specifications
| Specification | Value |
|---|---|
| Continuous Output Power | 25 W + 25 W at THD = 10% with VCC = 20 V and RL = 8 Ω |
| Power Supply Range | 8 - 26 V |
| Efficiency | η = 90% |
| Gain Settings | Four selectable, fixed gain settings of nominally 21.6 dB, 27.6 dB, 31.1 dB, and 33.6 dB |
| Input Type | Differential inputs to minimize common-mode noise |
| Protection Features | Standby, mute, short-circuit protection, and thermal overload protection |
| Synchronization | Externally synchronizable |
| Package Type | ECOPACK®, environmentally-friendly package |
| Speaker Impedance | Typically 8 Ω |
Key Features
- High efficiency (η = 90%) reducing the need for a heatsink
- Wide-range single-supply operation (8 - 26 V)
- 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 for power management
- Short-circuit protection and thermal overload protection for reliability
- Externally synchronizable for flexible system design
- ECOPACK®, environmentally-friendly package
Applications
- LCD TVs and monitors
- Bluetooth amplifiers and audio systems
- Personal electronics requiring high-efficiency audio amplification
Q & A
- What is the TDA7492P? The TDA7492P is a dual BTL class-D audio amplifier with single power supply, designed for LCD TVs and monitors.
- What is the continuous output power of the TDA7492P? 25 W + 25 W at THD = 10% with VCC = 20 V and RL = 8 Ω.
- What is the power supply range for the TDA7492P? 8 - 26 V.
- What are the gain settings available on the TDA7492P? Four selectable, fixed gain settings of nominally 21.6 dB, 27.6 dB, 31.1 dB, and 33.6 dB.
- Does the TDA7492P require a heatsink? No, due to its high efficiency and exposed-pad-down (EPD) package.
- What protection features does the TDA7492P have? Standby, mute, short-circuit protection, and thermal overload protection.
- Is the TDA7492P externally synchronizable? Yes.
- What type of package does the TDA7492P use? ECOPACK®, an environmentally-friendly package.
- What are typical applications for the TDA7492P? LCD TVs, monitors, Bluetooth amplifiers, and personal electronics requiring high-efficiency audio amplification.
- How does the TDA7492P differ from the TDA7492? The TDA7492P has a lower overcurrent threshold (4.2A) compared to the TDA7492 (6A), resulting in a higher typical load impedance of 8 Ω for the TDA7492P.
