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LM4881 from SI

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LM4881

Manufacturer: SI

Dual 200 mW Headphone Amplifier with Shutdown Mode

Partnumber Manufacturer Quantity Availability
LM4881 SI 500 In Stock

Description and Introduction

Dual 200 mW Headphone Amplifier with Shutdown Mode The LM4881 is a manufacturer by Texas Instruments (TI). Here are the specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Type:** Audio Power Amplifier  
- **Output Power:** 1.1W (into 8Ω at 5V)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Quiescent Current:** 2.6mA (typical)  
- **Shutdown Current:** 0.1μA (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 0.2% (typical at 1kHz, 1W into 8Ω)  
- **PSRR (Power Supply Rejection Ratio):** 70dB (typical)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Description:**
The LM4881 is a mono, bridge-tied load (BTL) audio power amplifier designed for portable electronic devices. It operates from a single supply and is optimized for low-voltage applications. The device includes an internal shutdown mode to minimize power consumption when not in use.

### **Features:**
- **Bridge-Tied Load (BTL) Configuration:** Eliminates the need for an output coupling capacitor.  
- **Low Quiescent Current:** Extends battery life in portable applications.  
- **Low Shutdown Current:** Reduces power consumption when inactive.  
- **Improved PSRR:** Reduces noise from power supply variations.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Space-Saving Packaging:** Available in 8-pin MSOP and SOIC packages.  

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

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