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TDA7480 from ST,ST Microelectronics

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TDA7480

Manufacturer: ST

10W MONO CLASS D AMPLIFIER

Partnumber Manufacturer Quantity Availability
TDA7480 ST 17485 In Stock

Description and Introduction

10W MONO CLASS D AMPLIFIER The TDA7480 is a class D audio amplifier manufactured by STMicroelectronics (ST). Here are the factual details from Ic-phoenix technical data files:

### **Specifications:**
- **Output Power:**  
  - 20W per channel (stereo) into 4Ω at 10% THD with a 14.4V supply.  
  - 10W per channel (stereo) into 8Ω at 10% THD with a 14.4V supply.  
- **Supply Voltage Range:** 8V to 18V (DC).  
- **Efficiency:** >90% (typical).  
- **THD+N (Total Harmonic Distortion + Noise):** <1% (typical).  
- **Signal-to-Noise Ratio (SNR):** >70dB.  
- **Operating Frequency:** Fixed-frequency PWM modulation (~300kHz).  
- **Package:** PowerDIP20 or SO20 (depending on variant).  

### **Descriptions:**
- The TDA7480 is a monolithic integrated class D amplifier designed for high-efficiency audio applications.  
- It uses Pulse Width Modulation (PWM) to minimize power dissipation.  
- Suitable for automotive, portable, and consumer audio systems.  

### **Features:**
- **Stereo Operation:** Supports two-channel output.  
- **Mute Function:** Includes a mute pin for audio signal control.  
- **Standby Mode:** Low-power standby option for energy savings.  
- **Short-Circuit Protection:** Built-in protection against output shorts.  
- **Thermal Protection:** Automatic shutdown in case of overheating.  
- **Minimal External Components:** Requires few external parts for operation.  

This information is based solely on the manufacturer's datasheet for the TDA7480.

Application Scenarios & Design Considerations

10W MONO CLASS D AMPLIFIER

Alternative Part Number

  • LM1875T --: Class AB audio power amplifier in TO-220 package with comparable output power and supply range, widely used as a drop-in substitute for TDA-series amplifiers.
  • TDA2030A --: Similar Class AB audio amplifier with compatible pinout and supply voltage, commonly used in the same low-power audio applications.
  • TDA2050 --: Higher-power Class AB audio amplifier in the same family with compatible pinout and supply range, suitable when slightly more output power is acceptable.

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