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LM4889MAX from NS,National Semiconductor

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LM4889MAX

Manufacturer: NS

1 Watt Audio Power Amplifier

Partnumber Manufacturer Quantity Availability
LM4889MAX NS 450 In Stock

Description and Introduction

1 Watt Audio Power Amplifier The LM4889MAX is a manufacturer by National Semiconductor (NS). Here are its specifications, descriptions, and features:  

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 1.1W per channel into 8Ω (typical at 5V supply)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 0.1% (typical at 1kHz, 1W output)  
- **Shutdown Current:** 0.01µA (typical)  
- **Operating Current:** 4mA (typical)  
- **Gain:** Internally fixed at 6dB  
- **Package:** 8-pin SOIC (MAX suffix)  

### **Descriptions:**  
The LM4889MAX is a dual audio power amplifier designed for low-voltage applications. It is optimized for driving stereo headphones or small speakers in portable devices. The amplifier features low shutdown current and thermal shutdown protection.  

### **Features:**  
- Dual-channel operation  
- Low quiescent current  
- Thermal shutdown protection  
- Improved click-and-pop suppression  
- No output coupling capacitors required  
- Unity-gain stable  
- Space-saving SOIC package  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

1 Watt Audio Power Amplifier
Partnumber Manufacturer Quantity Availability
LM4889MAX NSC 637 In Stock

Description and Introduction

1 Watt Audio Power Amplifier The LM4889MAX is a dual audio power amplifier manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Supply Voltage Range (V+):** 2.7V to 5.5V  
- **Output Power (THD+N = 1%):**  
  - 1.1W per channel into 8Ω at 5V  
  - 350mW per channel into 8Ω at 3V  
- **Total Harmonic Distortion + Noise (THD+N):** 0.2% (typical)  
- **Shutdown Current:** 0.01μA (typical)  
- **Quiescent Current:** 4mA (typical)  
- **Gain Bandwidth Product:** 3MHz (typical)  
- **Slew Rate:** 2V/μs (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC (MAX suffix)  

### **Descriptions:**  
The LM4889MAX is a dual audio power amplifier designed for portable electronic devices such as smartphones, tablets, and portable media players. It operates from a single supply voltage and is optimized for driving stereo headphones or small speakers. The device includes an internal thermal shutdown protection mechanism and features a low-power shutdown mode.  

### **Features:**  
- Dual-channel audio amplifier  
- Low supply voltage operation (2.7V to 5.5V)  
- High output power capability  
- Low shutdown current for power savings  
- Thermal shutdown protection  
- Improved PSRR (Power Supply Rejection Ratio)  
- Unity-gain stable  
- Space-saving SOIC package  

This information is strictly factual from the manufacturer's datasheet.

Application Scenarios & Design Considerations

1 Watt Audio Power Amplifier

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