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LM2794TL from NS,National Semiconductor

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LM2794TL

Manufacturer: NS

Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control

Partnumber Manufacturer Quantity Availability
LM2794TL NS 1200 In Stock

Description and Introduction

Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control The LM2794TL is a charge pump-based LED driver manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 30mA per channel (3 channels total)  
- **Efficiency:** Up to 90%  
- **Switching Frequency:** 1MHz (typical)  
- **Package:** 10-pin LLP (Leadless Leadframe Package)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Dimming Control:** PWM (Pulse Width Modulation) compatible  

### **Descriptions:**  
The LM2794TL is a compact, high-efficiency LED driver designed for powering white LEDs in portable applications. It uses a charge pump architecture to regulate current without requiring an inductor. The device provides three independently controlled current sources, making it suitable for backlighting and indicator applications.  

### **Features:**  
- **No Inductor Required** – Charge pump topology eliminates the need for bulky inductors.  
- **High Efficiency** – Up to 90% efficiency for extended battery life.  
- **Adjustable Brightness** – Supports PWM dimming for brightness control.  
- **Small Footprint** – 10-pin LLP package saves board space.  
- **Low Dropout Operation** – Maintains regulation even with low input voltage.  
- **Thermal Protection** – Built-in safeguards against overheating.  

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

Application Scenarios & Design Considerations

Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control

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