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LM4871M from NS,National Semiconductor

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LM4871M

Manufacturer: NS

3W Audio Power Amplifier with Shutdown Mode

Partnumber Manufacturer Quantity Availability
LM4871M NS 25850 In Stock

Description and Introduction

3W Audio Power Amplifier with Shutdown Mode The LM4871M is a mono bridged audio power amplifier manufactured by National Semiconductor (NS). Below are the factual details from Ic-phoenix technical data files:

### **Specifications:**  
- **Output Power:** 1.1W (typical) into an 8Ω load at 5V supply.  
- **Supply Voltage Range:** 2.0V to 5.5V.  
- **Quiescent Current:** 2.5mA (typical) at 5V supply.  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical) at 1kHz, 1W into 8Ω.  
- **Shutdown Current:** 0.01μA (typical).  
- **Gain:** Internally fixed at 6dB.  
- **Package:** 8-pin SOIC (M).  
- **Operating Temperature Range:** -40°C to +85°C.  

### **Descriptions:**  
- The LM4871M is designed for battery-powered applications requiring high efficiency and low power consumption.  
- It features a bridge-tied load (BTL) configuration, eliminating the need for an output coupling capacitor.  
- Includes thermal shutdown and short-circuit protection.  

### **Features:**  
- **Bridged Output:** No external coupling capacitor required.  
- **Low Quiescent Current:** Extends battery life in portable applications.  
- **Shutdown Mode:** Reduces power consumption when inactive.  
- **Unity-Gain Stable:** No external compensation needed.  
- **Improved PSRR (Power Supply Rejection Ratio):** Minimizes noise from supply variations.  
- **Thermal Shutdown Protection:** Prevents overheating.  

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

Application Scenarios & Design Considerations

3W Audio Power Amplifier with Shutdown Mode

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