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LM4871 from NS,National Semiconductor

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LM4871

Manufacturer: NS

3W Audio Power Amplifier with Shutdown Mode

Partnumber Manufacturer Quantity Availability
LM4871 NS 30 In Stock

Description and Introduction

3W Audio Power Amplifier with Shutdown Mode The LM4871 is a manufacturer by National Semiconductor (NS).  

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 1.1W (into 8Ω at 5V)  
- **Supply Voltage Range:** 2.0V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical at 1kHz, 1W into 8Ω)  
- **Efficiency:** Up to 90% (with BTL configuration)  
- **Shutdown Current:** 0.01μA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LM4871 is a mono, bridge-tied load (BTL) audio amplifier designed for low-voltage applications. It is optimized for portable devices such as mobile phones, PDAs, and portable media players. It features a low-power shutdown mode and requires minimal external components.  

### **Features:**  
- **Bridge-Tied Load (BTL) Configuration:** Eliminates the need for an output coupling capacitor.  
- **Low Quiescent Current:** 2.6mA (typical).  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Improved PSRR (Power Supply Rejection Ratio):** Reduces noise from the power supply.  
- **Small Package Options:** Available in MSOP-8 and LLP-8 packages.  

This information is strictly based on the manufacturer's datasheet.

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