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LM4861M/NOPB from NSC,National Semiconductor

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LM4861M/NOPB

Manufacturer: NSC

Boomer Series: 1.1W Audio Amplifier with Shutdown Mode 8-SOIC -40 to 85

Partnumber Manufacturer Quantity Availability
LM4861M/NOPB,LM4861MNOPB NSC 40 In Stock

Description and Introduction

Boomer Series: 1.1W Audio Amplifier with Shutdown Mode 8-SOIC -40 to 85 The LM4861M/NOPB is a power amplifier manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 1.1W (typical) into 8Ω at 5V  
- **Supply Voltage Range:** 2.0V to 5.5V  
- **Quiescent Current:** 4mA (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical) at 1kHz, 1W into 8Ω  
- **Shutdown Current:** 0.6μA (typical)  
- **Gain:** Internally fixed at 6dB  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The LM4861M/NOPB is a mono, bridge-tied load (BTL) audio power amplifier designed for low-voltage applications. It is optimized for driving small speakers in portable devices such as mobile phones, PDAs, and portable media players. The device features a low-power shutdown mode and requires minimal external components.  

### **Features:**  
- **Bridge-Tied Load (BTL) Configuration:** Eliminates the need for output coupling capacitors.  
- **Low Quiescent Current:** Enhances battery life in portable applications.  
- **Shutdown Mode:** Reduces power consumption when not in use.  
- **Internal Thermal Shutdown Protection:** Prevents damage from overheating.  
- **No Output Coupling Capacitors Required:** Simplifies design and reduces cost.  
- **Space-Saving SOIC-8 Package:** Suitable for compact PCB layouts.  

This information is based on the manufacturer's datasheet. For detailed specifications, refer to the official documentation.

Application Scenarios & Design Considerations

Boomer Series: 1.1W Audio Amplifier with Shutdown Mode 8-SOIC -40 to 85

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