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MC34262DR2 from ON,ON Semiconductor

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MC34262DR2

Manufacturer: ON, MOT

Power Factor Controller

Partnumber Manufacturer Quantity Availability
MC34262DR2 ON, MOT 2002 In Stock

Description and Introduction

Power Factor Controller # **MC34262DR2: A High-Performance Power Factor Correction Controller**  

In today’s energy-conscious world, efficient power management is more critical than ever. The **MC34262DR2** is a highly reliable **power factor correction (PFC) controller** designed to enhance the efficiency of AC/DC power supplies. Engineered for precision and performance, this IC ensures optimal power utilization while minimizing harmonic distortion, making it an ideal choice for a wide range of applications.  

## **Key Features of the MC34262DR2**  

### **1. Improved Power Factor Correction**  
The MC34262DR2 employs a **transition-mode (boundary-conduction) PFC control method**, which optimizes power factor correction while reducing switching losses. This results in higher efficiency and better compliance with international energy standards.  

### **2. Wide Input Voltage Range**  
With an operational input voltage range of **85V to 265V AC**, the MC34262DR2 is suitable for global power supply applications, ensuring consistent performance across varying line conditions.  

### **3. Low Start-Up and Operating Current**  
The IC features a **low start-up current (typically 50µA)**, enabling quick and efficient power-up sequences. Additionally, its low operating current minimizes power dissipation, contributing to overall system efficiency.  

### **4. Built-In Protection Mechanisms**  
To enhance reliability, the MC34262DR2 integrates multiple protection features, including:  
- **Overvoltage protection (OVP)** to prevent damage from excessive output voltages.  
- **Undervoltage lockout (UVLO)** for stable operation under low-voltage conditions.  
- **Zero-current detection (ZCD)** for accurate switching transitions.  

### **5. Precision Control with Multiplier and Error Amplifier**  
The IC includes a **precision multiplier** and **transconductance error amplifier**, ensuring tight regulation of the output voltage while maintaining near-unity power factor.  

## **Applications of the MC34262DR2**  
Due to its robust design and high efficiency, the MC34262DR2 is widely used in:  
- **Switched-mode power supplies (SMPS)**  
- **LED drivers**  
- **Industrial power systems**  
- **Consumer electronics**  
- **Telecommunications equipment**  

## **Why Choose the MC34262DR2?**  
Engineers and designers favor the MC34262DR2 for its **simplicity, reliability, and high performance**. Its ability to improve power factor while reducing energy waste makes it an essential component in modern power supply designs. Whether used in industrial, commercial, or consumer applications, this PFC controller delivers consistent results while meeting stringent regulatory requirements.  

For power supply designers seeking an efficient and dependable PFC solution, the **MC34262DR2** stands out as a top-tier choice, combining advanced control features with robust protection mechanisms. Its versatility and performance make it a key enabler of energy-efficient electronic systems.  

By integrating the MC34262DR2 into power supply designs, manufacturers can achieve **higher efficiency, reduced energy costs, and compliance with global power quality standards**—making it a valuable addition to any power management solution.

Application Scenarios & Design Considerations

Power Factor Controller

Alternative Part Number

  • UC3842BD1R2G --: Current-mode PWM controller in the same class of power-supply control ICs; widely available and functionally similar for offline converter designs.
  • SG6848D --: Power-factor-corrected PWM controller used in similar AC-DC applications; a common cross for PFC controller designs.
  • L6562D --: Transition-mode PFC controller with comparable function and pinout style, frequently used as an alternative in power factor correction circuits.
  • NCP1200P60G --: High-voltage PWM controller offering similar current-mode regulation and a distinct part family, usable as an alternative in offline power supplies.

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