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LM4871MMX from NS,National Semiconductor

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LM4871MMX

Manufacturer: NS

3W Audio Power Amplifier with Shutdown Mode

Partnumber Manufacturer Quantity Availability
LM4871MMX NS 4144 In Stock

Description and Introduction

3W Audio Power Amplifier with Shutdown Mode The LM4871MMX is a mono bridged audio power amplifier manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Output Power:**  
  - 1.1W into 8Ω at 5V (THD+N = 10%)  
  - 700mW into 8Ω at 3V (THD+N = 10%)  
- **Supply Voltage Range:** 2.0V to 5.5V  
- **Quiescent Current:** 3mA (typical)  
- **Shutdown Current:** 0.01μA (typical)  
- **Total Harmonic Distortion + Noise (THD+N):** 0.2% (typical at 1kHz, 1W into 8Ω, 5V)  
- **Gain:** Internally fixed at 6dB  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin μMAX (MMX)  

### **Descriptions:**  
- The LM4871MMX is designed for battery-powered applications such as mobile phones, portable media players, and other low-voltage audio systems.  
- It features a bridge-tied load (BTL) configuration, eliminating the need for an output coupling capacitor.  
- The device includes thermal shutdown and click-and-pop suppression circuitry.  

### **Features:**  
- **Bridged Output (BTL):** No output coupling capacitor required.  
- **Low Quiescent Current:** Enhances battery life.  
- **Shutdown Mode:** Ultra-low shutdown current for power savings.  
- **Thermal Protection:** Automatic shutdown in case of overheating.  
- **Improved Pop/Click Circuitry:** Reduces audible noise during power-up/down.  
- **Small Footprint:** 8-pin μMAX package for space-constrained applications.  

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

Application Scenarios & Design Considerations

3W Audio Power Amplifier with Shutdown Mode
Partnumber Manufacturer Quantity Availability
LM4871MMX NSC 5800 In Stock

Description and Introduction

3W Audio Power Amplifier with Shutdown Mode The LM4871MMX is a manufacturer by National Semiconductor (NSC). Here are its specifications, descriptions, and features:  

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 1.1W (into 8Ω at 5V)  
- **Supply Voltage Range:** 2.0V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Pin VSSOP (MMX)  

### **Descriptions:**  
- The LM4871MMX is a mono bridged audio power amplifier designed for portable applications.  
- It features a low-power consumption shutdown mode.  
- No output coupling capacitors or bootstrap capacitors are required.  

### **Features:**  
- **Bridged Output:** Eliminates the need for external coupling capacitors.  
- **Low Quiescent Current:** 2.5mA (typical).  
- **Shutdown Current:** 0.01μA (typical).  
- **Improved PSRR (Power Supply Rejection Ratio):** Reduces noise from the power supply.  
- **Short-Circuit and Thermal Protection:** Enhances reliability.  
- **Space-Saving Package:** 8-Pin VSSOP (MMX) for compact designs.  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

3W Audio Power Amplifier with Shutdown Mode

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