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UCC3819N from TI,Texas Instruments

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UCC3819N

Manufacturer: TI

PROGRAMMABLE OUTPUT POWER FACTOR PREREGULATOR

Partnumber Manufacturer Quantity Availability
UCC3819N TI 2616 In Stock

Description and Introduction

PROGRAMMABLE OUTPUT POWER FACTOR PREREGULATOR The UCC3819N is a power factor correction (PFC) controller manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 12V (VCC)  
- **Operating Frequency:** Up to 250kHz  
- **Output Drive Current:** ±1.5A (peak)  
- **Reference Voltage:** 7.5V (typical)  
- **Package Type:** PDIP-16 (Plastic Dual In-Line Package)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The UCC3819N is a high-performance average current mode PFC controller designed for boost-type power factor correction circuits. It ensures near-unity power factor by shaping the input current waveform to match the input voltage. The device is commonly used in AC-DC power supplies, industrial systems, and lighting applications.  

### **Features:**  
- **Average Current Mode Control:** Ensures low distortion and high power factor.  
- **Programmable Switching Frequency:** Allows flexibility in design.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Overvoltage Protection (OVP):** Safeguards against excessive output voltage.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation within voltage limits.  
- **Zero Current Detection (ZCD):** Enables discontinuous conduction mode (DCM) operation.  
- **Low Startup Current:** Minimizes power consumption during startup.  

This information is sourced from TI's official documentation on the UCC3819N.

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