Overview
The TDA7492MV13TR is a mono BTL class-D audio amplifier produced by STMicroelectronics. Designed for home audio systems and docking stations, this amplifier offers high efficiency and a compact design. It operates on a single power supply and features an exposed-pad-down (EPD) package, eliminating the need for a heatsink. The device is known for its high output power, low distortion, and various protection features, making it a reliable choice for audio applications.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | 10 | 26 | V | ||
| Output Power (Po) @ RL = 6 Ω, THD = 10% | VCC = 25 V | 50 | W | ||
| Output Power (Po) @ RL = 8 Ω, THD = 10% | VCC = 25 V | 40 | W | ||
| Total Harmonic Distortion (THD) @ Po = 1 W | 0.1 | 0.4 | % | ||
| Efficiency (η) @ Po = 40 W | 80 | 90 | % | ||
| Operating Temperature Range | 0 | 70 | °C | ||
| Junction Temperature Range | -40 | 150 | °C | ||
| Input Resistance (Ri) | Differential input | 48 | 60 | kΩ | |
| Overcurrent Protection Threshold (IOCP) | RL = 0 Ω | 4.8 | 6.0 | A |
Key Features
- High output power: up to 50 W continuous output power at RL = 6 Ω and THD = 10% at VCC = 25 V.
- Wide range single supply operation: 10 V to 26 V.
- High efficiency: up to 90% efficiency.
- Four selectable, fixed gain settings: 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.
- No heatsink required due to exposed-pad-down (EPD) package.
Applications
The TDA7492MV13TR is designed for use in home audio systems, docking stations, and other audio equipment where high power and efficiency are required. Its compact design and lack of need for a heatsink make it suitable for space-constrained applications.
Q & A
- What is the maximum output power of the TDA7492MV13TR? The maximum output power is 50 W at RL = 6 Ω and THD = 10% at VCC = 25 V.
- What is the operating voltage range of the TDA7492MV13TR? The operating voltage range is from 10 V to 26 V.
- What are the gain settings available for the TDA7492MV13TR? The gain settings are nominally 21.6 dB, 27.6 dB, 31.1 dB, and 33.6 dB.
- Does the TDA7492MV13TR require a heatsink? No, it does not require a heatsink due to its exposed-pad-down (EPD) package.
- What protection features does the TDA7492MV13TR have? It has short-circuit protection, thermal-overload protection, and overcurrent protection.
- How is the gain of the TDA7492MV13TR set? The gain is set by the two inputs, GAIN0 and GAIN1, which change the feedback resistors of the amplifier.
- What are the operating modes of the TDA7492MV13TR? The operating modes are standby, mute, and play, controlled by the STBY and MUTE inputs.
- What is the typical efficiency of the TDA7492MV13TR? The typical efficiency is 90% at an output power of 40 W.
- Can the TDA7492MV13TR be externally synchronized? Yes, it can be externally synchronized using the SYNCLCK pin.
- What is the input resistance of the TDA7492MV13TR? The input resistance is typically 60 kΩ for differential inputs.
