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LM3914V from NSC,National Semiconductor

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LM3914V

Manufacturer: NSC

Dot/Bar Display Driver

Partnumber Manufacturer Quantity Availability
LM3914V NSC 6 In Stock

Description and Introduction

Dot/Bar Display Driver The LM3914V is a monolithic integrated circuit manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Type**: LED Driver (Dot/Bar Display Driver)  
- **Voltage Range**: 3V to 25V  
- **Current Output**: 10mA to 30mA per segment (adjustable)  
- **Input Voltage Range**: Can operate from below ground to within 1.5V of V+  
- **Reference Voltage**: Adjustable (1.2V to 12V)  
- **Operating Temperature**: 0°C to +70°C  
- **Package**: 18-Pin DIP (Dual In-line Package)  

### **Descriptions:**  
- The LM3914V is designed to drive 10 LEDs in either a **dot mode** or **bar mode** display.  
- It provides a logarithmic (3dB/step) scale, making it suitable for audio level meters and other applications requiring non-linear response.  
- The device includes an adjustable internal voltage reference and can be cascaded for displays with more than 10 segments.  

### **Features:**  
- **10 LED Drivers** (individually controlled)  
- **Programmable Reference Voltage** (for brightness control)  
- **Mode Selectable** (Dot or Bar display)  
- **Wide Supply Voltage Range** (3V to 25V)  
- **Low Standby Current** (6mA typical)  
- **No Multiplexing Required** (direct LED drive)  
- **Cascadable for Larger Displays**  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Dot/Bar Display Driver

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