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LM2795TL from NSC,National Semiconductor

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LM2795TL

Manufacturer: NSC

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

Partnumber Manufacturer Quantity Availability
LM2795TL NSC 52 In Stock

Description and Introduction

Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control The LM2795TL is a charge pump-based LED driver manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 32mA per LED (adjustable)  
- **Number of Outputs:** 3 constant current sinks  
- **Efficiency:** Up to 90%  
- **Switching Frequency:** 1MHz (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin LLP (Leadless Leadframe Package)  

### **Descriptions:**
The LM2795TL 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, making it suitable for space-constrained designs. The device provides three regulated current outputs, each capable of driving an LED with adjustable brightness.

### **Features:**
- **No Inductor Required:** Charge pump topology simplifies design.  
- **Adjustable Brightness:** Current levels can be set via an external resistor.  
- **Low Dropout Voltage:** Ensures efficient operation even at low input voltages.  
- **Integrated Soft Start:** Prevents inrush current at startup.  
- **Thermal Protection:** Safeguards against overheating.  
- **Small Footprint:** 10-pin LLP package saves board space.  

This information is based solely on the LM2795TL's datasheet from NSC.

Application Scenarios & Design Considerations

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

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