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LM4872IBP from NSC,National Semiconductor

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LM4872IBP

Manufacturer: NSC

1 Watt Audio Power Amplifier in micro SMD package

Partnumber Manufacturer Quantity Availability
LM4872IBP NSC 95000 In Stock

Description and Introduction

1 Watt Audio Power Amplifier in micro SMD package The LM4872IBP is a mono bridged audio power amplifier manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Power:** 2.8W (typical) into 4Ω at 5V  
- **Supply Voltage Range:** 2.0V to 5.5V  
- **Shutdown Current:** 0.01μA (typical)  
- **Quiescent Current:** 2.5mA (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 0.2% (typical) at 1kHz, 1W into 4Ω  
- **Gain:** Fixed at 6dB  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin PDIP  

### **Descriptions:**  
- The LM4872IBP is designed for battery-powered applications, providing high efficiency and low power consumption.  
- It features a bridge-tied load (BTL) configuration, eliminating the need for an output coupling capacitor.  
- Includes thermal shutdown and click-and-pop suppression circuitry.  

### **Features:**  
- **Low Quiescent Current:** Extends battery life in portable devices.  
- **No Output Coupling Capacitors Required:** Simplifies design and reduces component count.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Click-and-Pop Suppression:** Minimizes audible transients during power-up/down.  
- **Space-Saving PDIP Package:** Suitable for compact designs.  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

1 Watt Audio Power Amplifier in micro SMD package
Partnumber Manufacturer Quantity Availability
LM4872IBP NS 470 In Stock

Description and Introduction

1 Watt Audio Power Amplifier in micro SMD package The LM4872IBP is a mono 3W audio power amplifier manufactured by National Semiconductor (NS).  

**Specifications:**  
- **Output Power:** 3W into 4Ω at 5V  
- **Supply Voltage Range:** 2.0V to 5.5V  
- **Quiescent Current:** 3.5mA (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical) at 1W into 4Ω  
- **Shutdown Current:** 0.6μA (typical)  
- **Gain:** Internally fixed at 6dB  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin PDIP  

**Descriptions and Features:**  
- Designed for battery-powered applications  
- Requires minimal external components  
- Features a low-power shutdown mode  
- Includes thermal shutdown protection  
- Unity-gain stable  
- Improved pop-and-click suppression  
- Optimized for driving small speakers in portable devices  

The LM4872IBP is commonly used in applications such as mobile phones, portable media players, and other compact audio devices.

Application Scenarios & Design Considerations

1 Watt Audio Power Amplifier in micro SMD package

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