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LM4891MM from NS,National Semiconductor

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LM4891MM

Manufacturer: NS

1 Watt Audio Power Amplifier

Partnumber Manufacturer Quantity Availability
LM4891MM NS 1000 In Stock

Description and Introduction

1 Watt Audio Power Amplifier The LM4891MM is a manufacturer by National Semiconductor (NS). Here are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 1.1W (into 8Ω at 5V)  
- **Supply Voltage Range:** 2.2V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical at 1kHz, 1W into 8Ω)  
- **Shutdown Current:** 0.01μA (typical)  
- **Operating Current:** 2.5mA (typical)  
- **Package:** 8-Pin VSSOP (MM)  

### **Description:**  
The LM4891MM is a mono, bridged audio power amplifier designed for portable applications. It operates from a single supply and delivers high-quality output with low power consumption.  

### **Features:**  
- **Bridged Output (BTL):** Eliminates output coupling capacitors.  
- **Low Quiescent Current:** Enhances battery life.  
- **Thermal Shutdown Protection:** Prevents overheating.  
- **Click-and-Pop Suppression:** Reduces noise during power-up/down.  
- **Unity-Gain Stable:** Requires minimal external components.  

This information is strictly based on the manufacturer's datasheet. Let me know if you need further details.

Application Scenarios & Design Considerations

1 Watt Audio Power Amplifier

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