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LTC3214EDD from LINEAR

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LTC3214EDD

Manufacturer: LINEAR

500mA Camera LED Charge Pump

Partnumber Manufacturer Quantity Availability
LTC3214EDD LINEAR 362 In Stock

Description and Introduction

500mA Camera LED Charge Pump The LTC3214EDD 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 (4 LEDs total)  
- **Switching Frequency:** 1MHz (typical)  
- **Efficiency:** Up to 90%  
- **Dimming Control:** Analog or PWM (up to 50kHz)  
- **Package:** 10-Lead DFN (3mm × 3mm)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LTC3214EDD is designed to drive up to four white LEDs with constant current, ensuring uniform brightness. It uses a low-noise charge pump architecture to minimize EMI and operates in 1x, 1.5x, or 2x mode for optimal efficiency.  

### **Features:**  
- Automatic mode switching for efficiency optimization  
- Low input ripple and low EMI  
- No inductors required  
- Soft-start inrush current limiting  
- Thermal shutdown protection  
- Open LED protection  

This device is commonly used in portable applications such as smartphones, PDAs, and backlighting displays.  

Would you like additional details on any specific aspect?

Partnumber Manufacturer Quantity Availability
LTC3214EDD LT 44 In Stock

Description and Introduction

500mA Camera LED Charge Pump The LTC3214EDD is a high-efficiency, low-noise charge pump LED driver manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Linear Technology (LT) / Analog Devices  
- **Part Number:** LTC3214EDD  
- **Package:** DFN-10 (3mm x 3mm)  
- **Input Voltage Range:** 2.9V to 5.5V  
- **Output Current:** Up to 100mA per LED (4 LEDs total)  
- **Switching Frequency:** 1MHz (typical)  
- **Efficiency:** Up to 92%  
- **Quiescent Current:** 400μA (typical)  
- **Shutdown Current:** <1μA  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**
- The LTC3214EDD is a low-noise, high-efficiency charge pump designed to drive up to four LEDs with constant current.  
- It uses a 1x/1.5x/2x charge pump architecture to optimize efficiency across input voltage ranges.  
- The device includes individual current sinks for each LED, allowing independent brightness control via PWM dimming.  
- It is suitable for portable applications requiring low EMI and high efficiency.  

### **Features:**
- **Low Noise Operation:** Minimizes interference in sensitive applications.  
- **Automatic Mode Switching:** Dynamically adjusts charge pump mode (1x, 1.5x, 2x) for optimal efficiency.  
- **Independent LED Current Control:** Each LED can be controlled separately.  
- **PWM Dimming:** Supports high-frequency (up to 50kHz) PWM dimming for brightness adjustment.  
- **Thermal Protection:** Includes overtemperature shutdown for safety.  
- **Small Footprint:** DFN-10 package saves board space.  

This information is based solely on the manufacturer's datasheet for the LTC3214EDD.

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