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TDA7490 from STR,ST Microelectronics

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TDA7490

Manufacturer: STR

25W + 25W STEREO CLASS-D AMPLIFIER 50W MONO IN BTL

Partnumber Manufacturer Quantity Availability
TDA7490 STR 4 In Stock

Description and Introduction

25W + 25W STEREO CLASS-D AMPLIFIER 50W MONO IN BTL The TDA7490 is a class-D audio amplifier manufactured by STMicroelectronics (STR).  

### **Specifications:**  
- **Output Power:** 2 x 40W (4Ω, THD = 10%, 24V)  
- **Supply Voltage Range:** 8V 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 TDA7490 is a dual BTL (Bridge-Tied Load) class-D amplifier designed for high-efficiency audio applications.  
- It features a built-in standby/mute function and thermal overload protection.  
- The amplifier is suitable for home audio systems, TVs, and multimedia speakers.  

### **Features:**  
- **High Efficiency:** Reduces heat dissipation and power consumption.  
- **Standby/Mute Control:** Low-power consumption in standby mode.  
- **Short-Circuit & Thermal Protection:** Enhances reliability.  
- **Wide Supply Voltage Range:** Compatible with various power supplies.  
- **Minimal External Components:** Simplifies PCB design.  

For detailed technical information, refer to the official STMicroelectronics datasheet.

Application Scenarios & Design Considerations

25W + 25W STEREO CLASS-D AMPLIFIER 50W MONO IN BTL

Alternative Part Number

  • LM3886TF --: Class AB audio power amplifier in TO-220 package with comparable output power range, widely available and well documented as a substitute in audio amplifier designs.
  • TDA7294 --: High-power Class AB audio amplifier IC with similar supply voltage and output power capability, commonly used as a drop-in alternative in audio applications.
  • TDA7265 --: Dual audio power amplifier with comparable voltage range and output power, suitable for similar audio amplifier circuits when pinout is adapted.

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