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UC3854NG4 from TEXAS

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UC3854NG4

Manufacturer: TEXAS

High Power Factor Preregulator

Partnumber Manufacturer Quantity Availability
UC3854NG4 TEXAS 23 In Stock

Description and Introduction

High Power Factor Preregulator The UC3854NG4 is a high-performance power factor correction (PFC) controller manufactured by Texas Instruments.  

### **Specifications:**  
- **Input Voltage Range:** 15V to 35V  
- **Operating Frequency:** Up to 250 kHz  
- **Output Drive Current:** 1.5A (peak)  
- **Power Factor Correction:** Near unity  
- **Package Type:** PDIP-16 (Plastic Dual In-Line Package)  
- **Operating Temperature Range:** -40°C to 85°C  
- **Control Method:** Average current mode control  

### **Descriptions:**  
The UC3854NG4 is designed for active power factor correction in AC/DC power supplies. It provides high power factor by shaping the input current to follow the input voltage waveform.  

### **Features:**  
- **Average Current Mode Control:** Ensures low distortion input current.  
- **Programmable Oscillator:** Allows frequency adjustment.  
- **Voltage Feedforward:** Improves line regulation.  
- **Overvoltage Protection:** Prevents excessive output voltage.  
- **Soft-Start:** Reduces inrush current.  
- **Low Standby Power Consumption:** Enhances efficiency.  

This IC is commonly used in power supplies, industrial systems, and lighting applications requiring high power factor correction.

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