Overview
The TDA7491P13TR 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 separate heatsink. Additionally, the filterless operation reduces the external component count, making it a compact and efficient solution for audio amplification needs.
Key Specifications
| Specification | Value |
|---|---|
| Continuous Output Power (RL = 6 Ω, THD = 10%, VCC = 11 V) | 10 W + 10 W |
| Continuous Output Power (RL = 8 Ω, THD = 10%, VCC = 12 V) | 9.5 W + 9.5 W |
| Single Supply Operation Range | 5 V - 18 V |
| Efficiency | η = 90% |
| Gain Settings | 20 dB, 26 dB, 30 dB, 32 dB |
| Operating Temperature Range | -40 °C to 85 °C |
| Package Type | PowerSSO-36 with exposed pad down |
Key Features
- High efficiency (η = 90%) reducing the need for a separate heatsink.
- Filterless operation, reducing external component count.
- No ‘pop’ at turn-on/off.
- Standby and mute features.
- Short-circuit protection and thermal overload protection.
- Externally synchronizable.
- Differential inputs to minimize common-mode noise.
- Four selectable, fixed gain settings.
Applications
The TDA7491P13TR is primarily designed for use in LCD TVs and monitors. Its high efficiency, compact design, and robust protection features make it an ideal choice for various audio amplification applications in consumer electronics and industrial settings.
Q & A
- What is the TDA7491P13TR used for?
The TDA7491P13TR is a dual BTL class-D audio amplifier used in LCD TVs and monitors for audio amplification.
- What are the key output power specifications of the TDA7491P13TR?
The TDA7491P13TR provides 10 W + 10 W continuous output power at RL = 6 Ω, THD = 10%, VCC = 11 V, and 9.5 W + 9.5 W at RL = 8 Ω, THD = 10%, VCC = 12 V.
- What is the operating voltage range of the TDA7491P13TR?
The TDA7491P13TR operates with a single supply voltage range of 5 V to 18 V.
- Does the TDA7491P13TR require a separate heatsink?
No, due to its high efficiency and exposed-pad-down (EPD) package, a separate heatsink is not required.
- What protection features does the TDA7491P13TR have?
The TDA7491P13TR includes short-circuit protection and thermal overload protection.
- Can the TDA7491P13TR be externally synchronized?
- What are the gain settings available on the TDA7491P13TR?
The TDA7491P13TR offers four selectable, fixed gain settings of nominally 20 dB, 26 dB, 30 dB, and 32 dB.
- What type of package does the TDA7491P13TR come in?
The TDA7491P13TR comes in a PowerSSO-36 package with an exposed pad down.
- What is the operating temperature range of the TDA7491P13TR?
The operating temperature range of the TDA7491P13TR is -40 °C to 85 °C.
- Is the TDA7491P13TR pin-to-pin compatible with other models?
