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LT1249CN8 from LT

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LT1249CN8

Manufacturer: LT

Power Factor Controller

Partnumber Manufacturer Quantity Availability
LT1249CN8 LT 192 In Stock

Description and Introduction

Power Factor Controller The LT1249CN8 is a power factor correction (PFC) controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Manufacturer:** Linear Technology (LT)  
- **Part Number:** LT1249CN8  
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)  
- **Input Voltage Range:** Wide range (suitable for universal AC input)  
- **Switching Frequency:** Adjustable (typically up to 250kHz)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Control Method:** Average current mode control  
- **Features:**  
  - High power factor (>0.99)  
  - Low total harmonic distortion (THD)  
  - Programmable switching frequency  
  - Soft-start capability  
  - Overvoltage protection (OVP)  
  - Undervoltage lockout (UVLO)  

### **Descriptions and Features:**  
- Designed for active power factor correction in AC/DC power supplies.  
- Uses average current mode control for precise regulation.  
- Reduces input current harmonics to comply with standards like IEC 1000-3-2.  
- Includes a multiplier for accurate input current shaping.  
- Suitable for boost converter topologies.  
- Provides protection features such as overvoltage and undervoltage lockout.  

This IC is commonly used in power supply designs to improve efficiency and meet regulatory requirements.  

(Note: Always refer to the official datasheet for detailed specifications and application guidelines.)

Application Scenarios & Design Considerations

Power Factor Controller

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