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UCC28514N from TI/UNITRODE,Texas Instruments

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15.625ms

UCC28514N

Manufacturer: TI/UNITRODE

Advanced PFC/PWM Combination Controllers

Partnumber Manufacturer Quantity Availability
UCC28514N TI/UNITRODE 10 In Stock

Description and Introduction

Advanced PFC/PWM Combination Controllers The UCC28514N is a Power Factor Correction (PFC) controller manufactured by Texas Instruments (TI)/Unitrode. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Topology:** Continuous Conduction Mode (CCM) PFC  
- **Input Voltage Range:** 85 VAC to 265 VAC  
- **Output Voltage Range:** Adjustable (typically up to 400 VDC)  
- **Switching Frequency:** Fixed at 100 kHz  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-Pin PDIP (Plastic Dual In-Line Package)  
- **Control Method:** Average Current Mode Control  

### **Descriptions:**
- Designed for high-power PFC applications requiring high efficiency and low distortion.  
- Integrates a multiplier, voltage error amplifier, and current error amplifier for precise PFC regulation.  
- Includes protection features such as overvoltage protection (OVP), undervoltage lockout (UVLO), and soft-start.  

### **Features:**
- **High Power Factor (>0.99)**  
- **Low THD (Total Harmonic Distortion)**  
- **Precision Reference Voltage (7.5V ±1%)**  
- **Programmable Soft-Start**  
- **Cycle-by-Cycle Current Limiting**  
- **Zero Current Detection (ZCD) for Synchronous Rectification**  
- **Under-Voltage Lockout (UVLO) with Hysteresis**  

The UCC28514N is commonly used in AC/DC power supplies, industrial equipment, and lighting applications requiring compliance with power quality standards.

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