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LM4850MM from NSC,National Semiconductor

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LM4850MM

Manufacturer: NSC

Mono 1.5 W / Stereo 300 mW Power Amplifier

Partnumber Manufacturer Quantity Availability
LM4850MM NSC 180 In Stock

Description and Introduction

Mono 1.5 W / Stereo 300 mW Power Amplifier The LM4850MM is a manufacturer by National Semiconductor (NSC). It is a 3W audio power amplifier with a differential input, designed for driving speakers in portable applications.  

### **Specifications:**  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Output Power:** Up to 3W (into 4Ω at 5V)  
- **Quiescent Current:** 4mA (typical)  
- **Shutdown Current:** 0.1μA (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 0.3% (typical at 1kHz, 1W into 4Ω)  
- **PSRR (Power Supply Rejection Ratio):** 70dB (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin MSOP (MM)  

### **Descriptions:**  
The LM4850MM is a mono, bridge-tied load (BTL) audio amplifier optimized for low-voltage applications. It features a differential input to reduce noise and improve audio quality. The device includes a low-power shutdown mode to extend battery life in portable devices.  

### **Features:**  
- Differential inputs for noise rejection  
- Low quiescent current  
- Thermal shutdown protection  
- Short-circuit protection  
- Pop-and-click suppression circuitry  
- Space-saving MSOP package  

This information is based on the manufacturer's datasheet for the LM4850MM.

Application Scenarios & Design Considerations

Mono 1.5 W / Stereo 300 mW Power Amplifier
Partnumber Manufacturer Quantity Availability
LM4850MM NS 16696 In Stock

Description and Introduction

Mono 1.5 W / Stereo 300 mW Power Amplifier The LM4850MM is a mono bridged audio power amplifier manufactured by National Semiconductor (NS).  

**Specifications:**  
- **Output Power:** 1.1W into an 8Ω load at 5V supply  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Shutdown Current:** 0.6μA (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical) at 1kHz, 1W into 8Ω  
- **PSRR (Power Supply Rejection Ratio):** 70dB (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin micro small outline package (MSOP)  

**Descriptions:**  
- The LM4850MM is designed for portable audio applications.  
- It features a low-power consumption shutdown mode.  
- The amplifier operates in bridge-tied load (BTL) configuration, eliminating the need for output coupling capacitors.  

**Features:**  
- Low quiescent current (4mA typical)  
- Improved click-and-pop suppression  
- No output coupling capacitors required  
- Thermal shutdown protection  
- Unity-gain stable  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Mono 1.5 W / Stereo 300 mW Power Amplifier

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