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LTC3210EUD-1 from LINEAR

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LTC3210EUD-1

Manufacturer: LINEAR

MAIN/CAM LED Controller with 64-Step Brightness Control in 3mm x 3mm QFN

Partnumber Manufacturer Quantity Availability
LTC3210EUD-1,LTC3210EUD1 LINEAR 14 In Stock

Description and Introduction

MAIN/CAM LED Controller with 64-Step Brightness Control in 3mm x 3mm QFN The LTC3210EUD-1 is a high-efficiency, low-noise charge pump LED driver manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 2.9V to 5.5V  
- **Output Current:** Up to 100mA per LED (total 400mA for four LEDs)  
- **Number of LED Channels:** 4  
- **Switching Frequency:** 1MHz (typical)  
- **Efficiency:** Up to 90%  
- **Dimming Control:** Analog or PWM (up to 50kHz)  
- **Low Noise:** Constant-frequency operation reduces EMI  
- **Thermal Protection:** Yes  
- **Package:** 16-Lead QFN (4mm × 4mm)  

### **Descriptions:**  
The LTC3210EUD-1 is designed to drive up to four white LEDs with regulated current, ensuring uniform brightness. It uses a charge pump architecture to boost the input voltage efficiently, eliminating the need for an inductor.  

### **Features:**  
- **Automatic Mode Switching:** Switches between 1x, 1.5x, and 2x modes for optimal efficiency.  
- **Independent LED Current Control:** Each LED can be individually controlled.  
- **Low Dropout Operation:** Maintains regulation even when input voltage is close to LED forward voltage.  
- **Shutdown Current:** <1µA (typical)  
- **Soft-Start:** Reduces inrush current during startup.  

This device is commonly used in portable electronics, such as smartphones and tablets, for backlighting applications.  

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Application Scenarios & Design Considerations

MAIN/CAM LED Controller with 64-Step Brightness Control in 3mm x 3mm QFN

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