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LM4674TL from NS,NS,National Semiconductor

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LM4674TL

Manufacturer: NS,NS

Filterless 2.5W Stereo Class D Audio Power Amplifier

Partnumber Manufacturer Quantity Availability
LM4674TL NS,NS 500 In Stock

Description and Introduction

Filterless 2.5W Stereo Class D Audio Power Amplifier The LM4674TL is a high-efficiency, mono, filterless Class D audio amplifier manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Power:** Up to 2.8W into 4Ω at 5V  
- **Efficiency:** >85% (typical)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **THD+N:** 0.1% (typical)  
- **Shutdown Current:** <1µA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin LLP (Leadless Leadframe Package)  

### **Descriptions:**  
The LM4674TL is a filterless Class D amplifier designed for portable audio applications. It eliminates the need for external output filters while maintaining low EMI emissions.  

### **Features:**  
- Filterless operation  
- Low shutdown current (<1µA)  
- Thermal and short-circuit protection  
- Pop-and-click suppression circuitry  
- High PSRR (Power Supply Rejection Ratio)  
- Small footprint (LLP package)  

This information is sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Filterless 2.5W Stereo Class D Audio Power Amplifier
Partnumber Manufacturer Quantity Availability
LM4674TL NS 1000 In Stock

Description and Introduction

Filterless 2.5W Stereo Class D Audio Power Amplifier The LM4674TL is a mono 2.65W Class D audio amplifier manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Power:** 2.65W into 4Ω at 5V (THD+N = 1%)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Efficiency:** Up to 90%  
- **THD+N:** 0.3% (typical at 1W into 4Ω)  
- **Shutdown Current:** <1μA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin LLP (3mm x 3mm)  

### **Descriptions:**  
The LM4674TL is a high-efficiency, filterless Class D audio amplifier designed for portable applications. It requires minimal external components and operates from a single supply voltage.  

### **Features:**  
- Filterless operation (no output LC filter required)  
- Low shutdown current (<1μA)  
- Pop-and-click suppression circuitry  
- Thermal shutdown protection  
- Short-circuit protection  
- High PSRR (Power Supply Rejection Ratio)  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Filterless 2.5W Stereo Class D Audio Power Amplifier

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