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LT1243IN8 from LINEAR

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LT1243IN8

Manufacturer: LINEAR

High Speed Current Mode Pulse Width Modulators

Partnumber Manufacturer Quantity Availability
LT1243IN8 LINEAR 13 In Stock

Description and Introduction

High Speed Current Mode Pulse Width Modulators The LT1243IN8 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 300kHz  
- **Output Drive Current:** ±1A (peak)  
- **Power Factor Correction:** Near unity  
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LT1243IN8 is designed for high-performance power factor correction in AC/DC power supplies. It uses a boost converter topology to shape the input current waveform, ensuring compliance with harmonic distortion standards.  

### **Features:**  
- **Average Current Mode Control:** Ensures low distortion input current.  
- **Programmable Oscillator Frequency:** Adjustable up to 300kHz.  
- **Soft-Start Function:** Reduces inrush current.  
- **Overvoltage Protection (OVP):** Safeguards against output overvoltage.  
- **Low Power Consumption:** Optimized for efficiency.  
- **Wide Supply Voltage Range:** Supports various applications.  

For detailed electrical characteristics, refer to the official datasheet.

Application Scenarios & Design Considerations

High Speed Current Mode Pulse Width Modulators
Partnumber Manufacturer Quantity Availability
LT1243IN8 40 In Stock

Description and Introduction

High Speed Current Mode Pulse Width Modulators The LT1243IN8 is a 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 250kHz  
- **Peak Output Current:** 1.5A  
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)  
- **Control Method:** Average Current Mode  
- **Power Factor Correction:** >0.99  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LT1243IN8 is designed for high-efficiency power factor correction in AC/DC power supplies. It uses average current mode control to regulate input current, ensuring low harmonic distortion and high power factor.  

### **Features:**  
- **Precision Reference Voltage:** 2.5V ±1%  
- **Low Start-Up Current:** <150µA  
- **Programmable Soft-Start**  
- **Undervoltage Lockout (UVLO)**  
- **Overvoltage Protection (OVP)**  
- **Zero Current Detection**  
- **Low Distortion, High Power Factor Operation**  

This IC is commonly used in power supplies, LED drivers, and industrial applications requiring compliance with power quality standards.

Application Scenarios & Design Considerations

High Speed Current Mode Pulse Width Modulators
Partnumber Manufacturer Quantity Availability
LT1243IN8 LT 200 In Stock

Description and Introduction

High Speed Current Mode Pulse Width Modulators The LT1243IN8 is a power factor correction (PFC) controller manufactured by Linear Technology (now part of Analog Devices).  

### **Key Specifications:**  
- **Input Voltage Range:** 4.5V to 30V  
- **Operating Frequency:** Up to 300kHz  
- **Output Drive Current:** ±1A (peak)  
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions and Features:**  
- Designed for **active power factor correction** in AC/DC power supplies.  
- Uses **average current mode control** for precise input current shaping.  
- Features **low distortion, high power factor (>0.99), and low harmonic content**.  
- Includes **overvoltage protection (OVP), undervoltage lockout (UVLO), and soft-start**.  
- Compatible with **boost converter topologies**.  
- Suitable for **offline power supplies, LED drivers, and industrial applications**.  

For detailed electrical characteristics, refer to the official datasheet from Analog Devices.

Application Scenarios & Design Considerations

High Speed Current Mode Pulse Width Modulators

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