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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?

Application Scenarios & Design Considerations

500mA Camera LED Charge Pump
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.

Application Scenarios & Design Considerations

500mA Camera LED Charge Pump

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