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MC33261P

Power Factor Controller

Partnumber Manufacturer Quantity Availability
MC33261P 4 In Stock

Description and Introduction

Power Factor Controller The MC33261P is a power factor controller integrated circuit (IC) manufactured by ON Semiconductor. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 8V to 18V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** PDIP-8 (Plastic Dual Inline Package)  
- **Frequency Range:** Adjustable up to 250 kHz  
- **Start-Up Current:** Typically 150 µA  
- **Quiescent Current:** Typically 3 mA  

### **Descriptions:**  
- The MC33261P is designed for power factor correction (PFC) in AC/DC power supplies.  
- It operates in critical conduction mode (transition mode) to improve efficiency.  
- The IC includes a zero-current detector (ZCD) for precise switching control.  

### **Features:**  
- **Power Factor Correction (PFC):** Ensures high power factor (>0.99) in AC input applications.  
- **Internal Start-Up Timer:** Reduces external component count.  
- **Low Distortion:** Minimizes input current harmonics.  
- **Overvoltage Protection (OVP):** Safeguards against excessive output voltage.  
- **Multiplier Enhancer:** Improves performance at low line voltages.  
- **Transconductance Error Amplifier:** Provides stable feedback control.  

This information is based on the manufacturer's datasheet. For detailed application notes, refer to ON Semiconductor's official documentation.

Application Scenarios & Design Considerations

Power Factor Controller

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