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L6567D

Manufacturer: ST

HIGH VOLTAGE DRIVER FOR CFL

Partnumber Manufacturer Quantity Availability
L6567D ST 341 In Stock

Description and Introduction

HIGH VOLTAGE DRIVER FOR CFL The L6567D is a transition mode PFC controller manufactured by STMicroelectronics. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Input Voltage Range:** 85V to 265V AC  
- **Output Voltage Regulation:** Adjustable (typically up to 400V DC)  
- **Switching Frequency:** Transition mode (variable frequency)  
- **Operating Frequency Range:** Up to 300 kHz  
- **Start-Up Current:** < 50 µA  
- **Quiescent Current:** < 4 mA  
- **Maximum Duty Cycle:** 94%  
- **Driver Output Current (Source/Sink):** ±400 mA  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SO-8  

### **Description:**  
The L6567D is a high-performance power factor correction (PFC) controller designed for transition mode (boundary conduction mode) operation. It is optimized for pre-regulators in AC-DC converters, ensuring high power factor and low harmonic distortion.  

### **Features:**  
- **Transition Mode Operation:** Ensures high efficiency and reduced switching losses.  
- **Low Distortion & High PF:** Achieves near-unity power factor (PF > 0.99).  
- **Overvoltage Protection (OVP):** Prevents excessive output voltage.  
- **Undervoltage Lockout (UVLO):** Ensures proper start-up and shutdown.  
- **Zero-Current Detection (ZCD):** Enables boundary conduction mode operation.  
- **Adjustable Output Voltage:** Via external resistor divider.  
- **Low Standby Power Consumption:** Suitable for energy-efficient applications.  
- **Enhanced EMI Performance:** Due to quasi-resonant operation.  

This information is strictly factual and derived from the manufacturer's datasheet. Let me know if you need further details.

Application Scenarios & Design Considerations

HIGH VOLTAGE DRIVER FOR CFL

Alternative Part Number

  • NCP1607BDR2G --: Critical-conduction-mode PFC controller with similar function and pinout, widely available and cost-effective replacement for PFC applications.
  • UCC28051DR --: Transition-mode PFC controller offering comparable performance and protection features, suitable drop-in for many L6567D designs.
  • FAN7527BMX --: Boundary-conduction-mode PFC controller with similar control scheme and electrical characteristics, usable as an alternative with minor circuit adjustments.
  • UCC28070D --: Interleaved PFC controller in SOIC package, similar function to the L6567D PFC controller and widely used as a cross-vendor alternative.
  • NCP1654DR2G --: Continuous conduction mode PFC controller in SOIC-8, comparable PFC control function and pin-compatible class replacement.
  • FAN7930CMX --: Critical conduction mode PFC controller in SOIC-8, suitable functional substitute for PFC applications when the ST part is unavailable.

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