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LT1244IN8 from LT

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LT1244IN8

Manufacturer: LT

High Speed Current Mode Pulse Width Modulators

Partnumber Manufacturer Quantity Availability
LT1244IN8 LT 44 In Stock

Description and Introduction

High Speed Current Mode Pulse Width Modulators The LT1244IN8 is a power factor correction (PFC) controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 18V  
- **Operating Frequency:** Up to 500kHz  
- **Output Drive Current:** ±1A  
- **Zero Current Detection:** Yes  
- **Average Current Mode Control:** Yes  
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LT1244IN8 is designed for high-efficiency power factor correction in AC/DC power supplies. It uses average current mode control to ensure low harmonic distortion and high power factor. The IC includes features like zero current detection and a high-current totem pole output for driving power MOSFETs.  

### **Features:**  
- **Power Factor Correction (PFC) Controller**  
- **Low Distortion, High Power Factor (>0.99)**  
- **Programmable Switching Frequency**  
- **Peak Current Limiting**  
- **Soft-Start Function**  
- **Undervoltage Lockout (UVLO)**  
- **Low Startup Current (<150µA)**  

This IC is commonly used in applications such as offline power supplies, LED drivers, and industrial power systems.  

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

Application Scenarios & Design Considerations

High Speed Current Mode Pulse Width Modulators
Partnumber Manufacturer Quantity Availability
LT1244IN8 LINEAR 19 In Stock

Description and Introduction

High Speed Current Mode Pulse Width Modulators The LT1244IN8 is a high-speed power factor correction (PFC) controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 15V  
- **Operating Frequency:** Up to 500kHz  
- **Supply Current:** 3.5mA (typical)  
- **Output Drive Current:** ±1A (peak)  
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LT1244IN8 is designed for active power factor correction in AC/DC power supplies. It features a high-speed multiplier/divider circuit, a precision reference, and a transconductance error amplifier. The controller operates in continuous conduction mode (CCM) and includes protection features such as soft-start and overvoltage protection.  

### **Features:**  
- **Power Factor Correction (PFC) Controller**  
- **Low Distortion, High Power Factor**  
- **Programmable Oscillator Frequency**  
- **Precision 2.5V Reference**  
- **Soft-Start Function**  
- **Overvoltage Protection (OVP)**  
- **Low Start-Up Current**  

The LT1244IN8 is commonly used in offline power supplies, industrial equipment, and lighting applications requiring high power factor correction efficiency.

Application Scenarios & Design Considerations

High Speed Current Mode Pulse Width Modulators

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