Overview
The TDA7491MV13TR is a mono BTL class-D audio amplifier produced by STMicroelectronics. It is designed for use in LCD TVs and monitors, offering high efficiency and a compact package. The amplifier features an exposed-pad-down (EPD) package, which eliminates the need for a heatsink. Additionally, its filterless operation reduces the external component count, making it a streamlined solution for audio applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Max Output Power | 25 W | - |
| Load Resistance for 25 W Output | 6 Ω | - |
| Load Resistance for 20 W Output | 8 Ω | - |
| Supply Voltage Range | 5 V - 18 V | - |
| Efficiency | 90% | - |
| Gain Settings | 20 dB, 26 dB, 30 dB, 32 dB | - |
| Operating Temperature Range | -40°C to 85°C | - |
| Package Type | PowerSSO-36 EPD | - |
| Thermal Resistance (Junction to Case) | 2 °C/W | - |
Key Features
- High efficiency (η = 90%) reducing the need for a heatsink.
- Wide range single supply operation (5 V - 18 V).
- Four selectable, fixed gain settings of nominally 20 dB, 26 dB, 30 dB, and 32 dB.
- Differential inputs to minimize common-mode noise.
- Filterless operation to reduce external component count.
- No ‘pop’ at turn-on/off.
- Standby and mute features.
- Short-circuit protection and thermal overload protection.
- Externally synchronizable.
Applications
The TDA7491MV13TR is primarily designed for use in LCD TVs and monitors. Its high efficiency, compact packaging, and robust protection features make it an ideal choice for various audio applications in consumer electronics.
Q & A
- What is the maximum output power of the TDA7491MV13TR?
The maximum output power is 25 W with a load resistance of 6 Ω and 20 W with a load resistance of 8 Ω.
- What is the supply voltage range for the TDA7491MV13TR?
The supply voltage range is from 5 V to 18 V.
- What are the gain settings available for the TDA7491MV13TR?
The gain settings are nominally 20 dB, 26 dB, 30 dB, and 32 dB.
- Does the TDA7491MV13TR require a heatsink?
No, due to its high efficiency and exposed-pad-down (EPD) package, a heatsink is not required).
- What kind of protection features does the TDA7491MV13TR have?
The amplifier features short-circuit protection, thermal overload protection, overvoltage protection, and undervoltage protection).
- Can the TDA7491MV13TR be externally synchronized?
- What is the operating temperature range for the TDA7491MV13TR?
The operating temperature range is from -40°C to 85°C).
- What package type does the TDA7491MV13TR use?
The package type is PowerSSO-36 EPD).
- Is the TDA7491MV13TR pin-to-pin compatible with other models?
- Does the TDA7491MV13TR have standby and mute features?
