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L6563S from ST,ST Microelectronics

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L6563S

Manufacturer: ST

Enhanced transition-mode PFC controller

Partnumber Manufacturer Quantity Availability
L6563S ST 2500 In Stock

Description and Introduction

Enhanced transition-mode PFC controller The L6563S is a current-mode PFC controller manufactured by STMicroelectronics. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 85V to 265V (AC)  
- **Operating Frequency:** Up to 300 kHz  
- **Start-Up Current:** < 50 µA  
- **Quiescent Current:** < 5 mA  
- **Output Voltage Regulation Accuracy:** ±1%  
- **Maximum Duty Cycle:** 97%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SO-8  

### **Descriptions:**  
The L6563S is a transition-mode (boundary conduction mode) power factor correction (PFC) controller designed for boost pre-converters. It ensures high power factor and low total harmonic distortion (THD) in AC-DC power supplies. The IC features a multiplier for sinusoidal input current shaping and an error amplifier for output voltage regulation.  

### **Features:**  
- **Transition-Mode Operation:** Ensures high efficiency and low EMI.  
- **Zero Current Detection (ZCD):** Enables boundary conduction mode operation.  
- **Overvoltage Protection (OVP):** Protects against output overvoltage.  
- **Undervoltage Lockout (UVLO):** Ensures proper start-up and shutdown.  
- **Soft-Start:** Reduces inrush current during start-up.  
- **Multiplier with Input Voltage Feedforward:** Improves THD performance.  
- **Low Standby Power Consumption:** Suitable for energy-efficient applications.  

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

Application Scenarios & Design Considerations

Enhanced transition-mode PFC controller

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