Advanced transition-mode PFC controller The L6563A 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:** 85 V to 265 V (AC)
- **Output Voltage Regulation:** Adjustable (typically up to 400 V DC)
- **Switching Frequency:** Up to 300 kHz
- **Operating Supply Voltage (VCC):** 10.5 V to 22 V
- **Quiescent Current:** 3 mA (typical)
- **Start-up Current:** 60 µA (typical)
- **Maximum Duty Cycle:** 94%
- **Zero Current Detection (ZCD) Threshold:** -0.8 V
- **Overvoltage Protection (OVP) Threshold:** 1.08 V (adjustable)
- **Operating Temperature Range:** -40°C to +125°C
- **Package:** SO-8
### **Descriptions:**
- The **L6563A** is an enhanced transition-mode (boundary conduction mode) Power Factor Correction (PFC) controller.
- It is designed for boost PFC pre-regulators in AC-DC adapters, LED drivers, and SMPS applications.
- The device ensures near-unity power factor and low harmonic distortion.
- It includes features like precise output voltage regulation, overvoltage protection, and a disable function.
### **Features:**
- **Transition-Mode Operation:** Ensures high efficiency and low EMI.
- **Multiplier Output Clamping:** Limits maximum current during transient conditions.
- **Internal Start-up Timer:** Prevents excessive start-up time.
- **Disable Function:** Allows remote ON/OFF control.
- **Low Standby Power Consumption:** Suitable for energy-efficient designs.
- **Enhanced Line Feedforward:** Ensures constant output power across input voltage variations.
- **Protections:** Includes Overvoltage Protection (OVP) and brownout protection.
This information is based solely on the manufacturer's datasheet and technical documentation.
