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UCC3818N from TI/UNITRODE,Texas Instruments

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UCC3818N

Manufacturer: TI/UNITRODE

BiCMOS Power Factor Preregulator

Partnumber Manufacturer Quantity Availability
UCC3818N TI/UNITRODE 152 In Stock

Description and Introduction

BiCMOS Power Factor Preregulator The UCC3818N is a BiCMOS power factor correction (PFC) controller manufactured by Texas Instruments (TI) under the UNITRODE brand.  

### **Specifications:**  
- **Input Voltage Range:** 10V to 17V  
- **Operating Frequency:** Up to 250 kHz  
- **Output Drive Current:** ±1.5A (peak)  
- **Supply Current:** 5mA (typical)  
- **Reference Voltage:** 7.5V (with ±1% accuracy)  
- **Soft-Start Time:** Programmable  
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)  

### **Descriptions:**  
The UCC3818N is designed for average current mode control in power factor correction (PFC) circuits. It provides high-performance PFC with low distortion and high efficiency. The IC includes features like an integrated multiplier, voltage error amplifier, and current sensing amplifier for precise control.  

### **Features:**  
- **Average Current Mode Control** for low distortion  
- **Programmable Switching Frequency** (up to 250 kHz)  
- **Low Start-Up Current** (150µA typical)  
- **Undervoltage Lockout (UVLO)** with hysteresis  
- **Peak Current Limiting** for protection  
- **Soft-Start Function** to reduce inrush current  
- **Zero Current Detection** for discontinuous conduction mode (DCM) operation  

This information is based on the manufacturer's datasheet. For detailed electrical characteristics and application circuits, refer to the official TI/UNITRODE documentation.

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