25W MONO CLASS-D AMPLIFIER The TDA7482 is a Class-D audio amplifier IC manufactured by STMicroelectronics. Here are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:
### **Specifications:**
- **Output Power:**
- 25W per channel (into 4Ω at 10% THD, ±18V supply)
- 15W per channel (into 8Ω at 10% THD, ±18V supply)
- **Supply Voltage Range:** ±6V to ±18V
- **Operating Voltage Range:** 12V to 36V (split supply)
- **Total Harmonic Distortion (THD):** 0.5% (typical at 1W, 1kHz)
- **Signal-to-Noise Ratio (SNR):** >80dB
- **Efficiency:** Up to 90% (typical)
- **Operating Frequency:** 500kHz (switching frequency)
- **Package:** PowerSO-20 (multiwatt package)
### **Descriptions:**
- The TDA7482 is a **Class-D stereo amplifier** designed for high-efficiency audio applications.
- It uses **Pulse Width Modulation (PWM)** for amplification, reducing heat dissipation compared to linear amplifiers.
- Suitable for **consumer audio systems**, **TVs**, **multimedia speakers**, and **portable audio devices**.
- Features built-in **short-circuit protection**, **thermal shutdown**, and **standby mode** for power saving.
### **Features:**
- **Stereo Class-D Amplifier** (2-channel)
- **Low External Component Count** (minimal external circuitry required)
- **Mute and Standby Functions** for power management
- **Overcurrent and Thermal Protection**
- **High Efficiency** (reduces power loss and heat generation)
- **Wide Supply Voltage Range** for flexible power supply options
- **Surface-Mount Package (PowerSO-20)** for compact PCB designs
This information is based on the manufacturer's datasheet and technical documentation.
