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LM4951ASD/NOPB from NSC,National Semiconductor

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LM4951ASD/NOPB

Manufacturer: NSC

Wide Voltage Range 1.8 Watt Audio Power Amplifier With Short Circuit Protection 10-WSON -40 to 85

Partnumber Manufacturer Quantity Availability
LM4951ASD/NOPB,LM4951ASDNOPB NSC 1300 In Stock

Description and Introduction

Wide Voltage Range 1.8 Watt Audio Power Amplifier With Short Circuit Protection 10-WSON -40 to 85 The LM4951ASD/NOPB is a mono bridged audio power amplifier manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** National Semiconductor (NSC)  
- **Type:** Mono Bridged Audio Power Amplifier  
- **Output Power:** 3.1W (into 4Ω at 5V, THD+N = 10%)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Quiescent Current:** 2.5mA (typical)  
- **Shutdown Current:** 0.1μA (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 0.2% (typical at 1kHz, 1W into 4Ω)  
- **PSRR (Power Supply Rejection Ratio):** 70dB (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Pin WSON  

### **Descriptions:**
- The LM4951ASD/NOPB is a high-efficiency, mono bridged audio power amplifier designed for portable applications.  
- It features a low-power shutdown mode and operates from a single supply voltage.  
- The device includes thermal shutdown and short-circuit protection.  

### **Features:**
- **Bridged Output:** Eliminates the need for external coupling capacitors.  
- **Low Quiescent Current:** Extends battery life in portable devices.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Short-Circuit Protection:** Safeguards the amplifier and speaker.  
- **Small Footprint:** 8-pin WSON package saves board space.  
- **Improved PSRR:** Reduces noise from supply variations.  

This information is based on the manufacturer's datasheet.

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