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LM4901MM from NS,National Semiconductor

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LM4901MM

Manufacturer: NS

1.6 Watt Audio Power Amplifier with Selectable Shutdown Logic Level

Partnumber Manufacturer Quantity Availability
LM4901MM NS 213 In Stock

Description and Introduction

1.6 Watt Audio Power Amplifier with Selectable Shutdown Logic Level The LM4901MM is a power amplifier manufactured by National Semiconductor (NS). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** National Semiconductor (NS)  
- **Part Number:** LM4901MM  
- **Type:** Audio Power Amplifier  
- **Package:** 8-Pin MSOP (Mini Small Outline Package)  
- **Output Power:** 1.1W (into 8Ω at 5V)  
- **Supply Voltage Range:** 2.2V to 5.5V  
- **Quiescent Current:** 2.6mA (typical)  
- **Total Harmonic Distortion + Noise (THD+N):** 0.2% (typical at 1kHz, 1W into 8Ω)  
- **Shutdown Current:** 0.01μA (typical)  
- **Gain:** Fixed at 6dB (2V/V)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LM4901MM is a mono, bridged audio power amplifier designed for portable applications such as mobile phones, PDAs, and other battery-powered devices. It operates efficiently from a single supply voltage and includes an internal thermal shutdown feature for protection.  

### **Features:**  
- **Bridged Output:** Eliminates the need for an external coupling capacitor.  
- **Low Quiescent Current:** Enhances battery life in portable applications.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **No Output Coupling Capacitors Needed:** Reduces component count and cost.  
- **Small Footprint:** MSOP package saves board space.  
- **Improved PSRR (Power Supply Rejection Ratio):** Minimizes noise from the power supply.  

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

Application Scenarios & Design Considerations

1.6 Watt Audio Power Amplifier with Selectable Shutdown Logic Level

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