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LT1241CS8 from LT

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LT1241CS8

Manufacturer: LT

High Speed Current Mode Pulse Width Modulators

Partnumber Manufacturer Quantity Availability
LT1241CS8 LT 290 In Stock

Description and Introduction

High Speed Current Mode Pulse Width Modulators The LT1241CS8 is a high-speed power factor correction (PFC) controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Manufacturer:** Linear Technology (LT)  
- **Package:** 8-Lead SOIC (Small Outline Integrated Circuit)  
- **Input Voltage Range:** Up to 500V  
- **Operating Frequency:** Up to 300kHz  
- **Supply Voltage (VCC):** 10V to 22V  
- **Quiescent Current:** 3mA (typical)  
- **Peak Output Current:** ±1A  
- **Operating Temperature Range:** 0°C to 70°C  

### **Descriptions:**  
The LT1241CS8 is designed for power factor correction in AC/DC power supplies. It uses a fixed-frequency, average current mode control technique to achieve near-unity power factor. It is suitable for boost, flyback, and buck-boost PFC applications.  

### **Features:**  
- **Average Current Mode Control** for precise PFC  
- **Fixed-Frequency Operation** (up to 300kHz)  
- **Low Distortion, High Power Factor** (typically >0.99)  
- **Programmable Soft-Start**  
- **Overvoltage Protection (OVP)**  
- **Undervoltage Lockout (UVLO)**  
- **Low Start-Up Current**  
- **Single-Pin Error Amplifier and PWM Comparator**  

This IC is commonly used in power supply designs requiring compliance with harmonic distortion standards such as IEC 1000-3-2.

Application Scenarios & Design Considerations

High Speed Current Mode Pulse Width Modulators

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