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LM4905LD from NS,National Semiconductor

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LM4905LD

Manufacturer: NS

1 Watt Audio Power Amplifier

Partnumber Manufacturer Quantity Availability
LM4905LD NS 2140 In Stock

Description and Introduction

1 Watt Audio Power Amplifier The LM4905LD is a manufacturer by National Semiconductor (NS). Here are its specifications, descriptions, and features:  

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 1.1W per channel into 8Ω (at 5V supply)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical)  
- **Shutdown Current:** 0.01μA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin LLP (Leadless Leadframe Package)  

### **Descriptions:**  
The LM4905LD is a dual-channel, bridge-tied load (BTL) audio power amplifier designed for portable applications. It delivers high-quality audio output with low distortion and operates efficiently from a single supply voltage.  

### **Features:**  
- **Bridge-Tied Load (BTL) Output:** Eliminates the need for external coupling capacitors.  
- **Low Quiescent Current:** 3.5mA (typical) for power efficiency.  
- **No Output Coupling Capacitors Required:** Reduces component count.  
- **Thermal Shutdown Protection:** Prevents overheating.  
- **Space-Saving LLP Package:** Suitable for compact designs.  
- **Pop-and-Click Suppression:** Minimizes noise during power-up/down.  

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

Application Scenarios & Design Considerations

1 Watt Audio Power Amplifier

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