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LM4863 from NSC,National Semiconductor

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LM4863

Manufacturer: NSC

Dual 1.1W Audio Amplifier plus Stereo Headphone Function

Partnumber Manufacturer Quantity Availability
LM4863 NSC 31 In Stock

Description and Introduction

Dual 1.1W Audio Amplifier plus Stereo Headphone Function The LM4863 is a power amplifier manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 1.1W per channel (into 8Ω at 5V)  
- **Supply Voltage Range:** 2.0V to 5.5V  
- **Operating Current:** 4mA (typical)  
- **Shutdown Current:** 0.6μA (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 0.2% (typical at 1kHz, 1W into 8Ω)  
- **Gain:** Fixed at 6dB  
- **Package:** 8-pin SOIC, 8-pin LLP  

### **Descriptions:**  
- The LM4863 is a dual bridge-connected audio power amplifier designed for applications requiring low voltage operation and high output power.  
- It is optimized for battery-powered portable devices such as mobile phones, PDAs, and portable media players.  
- The amplifier features a low-power shutdown mode to conserve battery life.  

### **Features:**  
- **Dual Bridge Configuration:** Allows operation with a single supply voltage.  
- **Low Voltage Operation:** Works efficiently from 2.0V to 5.5V.  
- **Low Quiescent Current:** Reduces power consumption in active mode.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Short-Circuit Protection:** Safeguards against output shorts.  
- **No External Components Required:** Minimal external components needed for operation.  

This information is sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Dual 1.1W Audio Amplifier plus Stereo Headphone Function

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