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LT1243CS8#PBF from LINEAR

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LT1243CS8#PBF

Manufacturer: LINEAR

High Speed Current Mode Pulse Width Modulators

Partnumber Manufacturer Quantity Availability
LT1243CS8#PBF LINEAR 766 In Stock

Description and Introduction

High Speed Current Mode Pulse Width Modulators The LT1243CS8#PBF is a power factor correction (PFC) controller manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** LINEAR (Linear Technology)
- **Package:** SOIC-8
- **Input Voltage Range:** 4.5V to 30V
- **Operating Frequency:** Up to 300kHz (adjustable)
- **Output Drive Current:** ±500mA
- **Power Factor Correction:** >0.99
- **Operating Temperature Range:** 0°C to 70°C
- **Control Method:** Average current mode control
- **Start-Up Current:** <100µA
- **Shutdown Current:** <50µA

### **Descriptions:**
- The LT1243CS8#PBF is designed for high-performance power factor correction in AC/DC power supplies.
- It provides precise control of input current to match the input voltage waveform, improving power factor.
- Suitable for boost, flyback, and buck-boost PFC applications.
- Features low power consumption and high efficiency.

### **Features:**
- **Average Current Mode Control:** Ensures low distortion and high power factor.
- **Programmable Frequency:** Adjustable up to 300kHz.
- **Low Start-Up and Shutdown Current:** Enhances energy efficiency.
- **Overvoltage Protection (OVP):** Safeguards against output overvoltage.
- **Undervoltage Lockout (UVLO):** Ensures proper operation within voltage range.
- **Soft-Start Function:** Reduces inrush current during startup.
- **High Drive Current:** Supports fast switching of external MOSFETs.

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

High Speed Current Mode Pulse Width Modulators

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