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LM4877IBP from NATIONAL,National Semiconductor

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LM4877IBP

Manufacturer: NATIONAL

1 Watt Audio Power Amplifier in micro SMD package with Shutdown Logic Low

Partnumber Manufacturer Quantity Availability
LM4877IBP NATIONAL 3000 In Stock

Description and Introduction

1 Watt Audio Power Amplifier in micro SMD package with Shutdown Logic Low The LM4877IBP is a manufacturer by **NATIONAL**.  

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 1.1W (into 8Ω at 5V)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Package:** PDIP-8  
- **Operating Temperature Range:** -40°C to +85°C  
- **THD+N (Total Harmonic Distortion + Noise):** 0.2% (typical at 1kHz, 1W into 8Ω)  
- **Shutdown Current:** 0.01μA (typical)  

### **Descriptions:**  
The LM4877IBP is a mono, bridge-tied load (BTL) audio amplifier designed for low-voltage applications. It provides high-quality audio output with minimal external components.  

### **Features:**  
- **Bridge-Tied Load (BTL) Configuration** – Eliminates output coupling capacitors.  
- **Low Quiescent Current** – 4mA (typical).  
- **Improved PSRR (Power Supply Rejection Ratio)** – Reduces noise from power supply variations.  
- **Thermal Shutdown Protection** – Prevents overheating.  
- **Short-Circuit Protection** – Protects the device from damage.  
- **Space-Saving PDIP-8 Package** – Suitable for compact designs.  

This information is based solely on the manufacturer's specifications.

Partnumber Manufacturer Quantity Availability
LM4877IBP NS 40000 In Stock

Description and Introduction

1 Watt Audio Power Amplifier in micro SMD package with Shutdown Logic Low The LM4877IBP is a mono 2.65W audio power amplifier manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Power:** 2.65W 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 at 217Hz)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-pin LLP (Leadless Leadframe Package)  

### **Descriptions and Features:**  
- Designed for portable audio applications such as mobile phones and PDAs.  
- Features a low-power consumption shutdown mode.  
- No output coupling capacitors required.  
- Improved pop-and-click suppression circuitry.  
- Unity-gain stable, eliminating the need for external feedback resistors.  
- Internally fixed gain of 6dB.  
- Thermal shutdown and short-circuit protection.  

This information is based on the manufacturer's datasheet.

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