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TDA7494 from ST,ST Microelectronics

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TDA7494

Manufacturer: ST

10W AMPLIFIER WITH DC VOLUME CONTROL

Partnumber Manufacturer Quantity Availability
TDA7494 ST 550 In Stock

Description and Introduction

10W AMPLIFIER WITH DC VOLUME CONTROL The TDA7494 is a class-D audio amplifier manufactured by STMicroelectronics. Here are its key specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Output Power:**  
  - 50W + 50W (stereo) at 4Ω, THD = 10%, VS = 24V  
  - 30W + 30W (stereo) at 8Ω, THD = 10%, VS = 24V  
- **Supply Voltage (VS):** 10V to 26V  
- **Efficiency:** Up to 90% (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 0.1% (typical at 1W, 8Ω)  
- **Signal-to-Noise Ratio (SNR):** >95dB (A-weighted)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** PowerSO-36  

### **Descriptions:**  
- The TDA7494 is a dual BTL (Bridge-Tied Load) class-D amplifier designed for high-efficiency audio applications.  
- It features built-in protection circuits, including thermal shutdown, overcurrent, and short-circuit protection.  
- The amplifier operates in PWM (Pulse Width Modulation) mode for minimal power dissipation.  

### **Features:**  
- **High Power Output:** Capable of driving 50W per channel into 4Ω loads.  
- **Low Distortion:** Low THD+N for high-quality audio performance.  
- **Standby and Mute Functions:** Allows power-saving modes.  
- **No External Heatsink Required:** Efficient thermal management due to class-D operation.  
- **Pop-Free Start-Up:** Minimizes unwanted noise during power-on.  
- **Single-Supply Operation:** Simplifies power supply design.  

This information is based on the manufacturer's datasheet for the TDA7494 by STMicroelectronics.

Application Scenarios & Design Considerations

10W AMPLIFIER WITH DC VOLUME CONTROL

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