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L6571 from 05+

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L6571

Manufacturer: 05+

HIGH VOLTAGE HALF BRIDGE DRIVER WITH OSCILLATOR

Partnumber Manufacturer Quantity Availability
L6571 05+ 32 In Stock

Description and Introduction

HIGH VOLTAGE HALF BRIDGE DRIVER WITH OSCILLATOR The L6571 is a high-voltage resonant controller manufactured by STMicroelectronics. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Manufacturer:**  
- **STMicroelectronics**  

### **Specifications (05+):**  
- **Input Voltage Range:** Up to 600V  
- **Operating Frequency Range:** Adjustable, typically up to 500kHz  
- **Driver Output Current:** ±400mA (source/sink)  
- **Supply Voltage (VCC):** 12V to 20V  
- **Soft-Start Function:** Adjustable  
- **Protection Features:**  
  - Overcurrent protection (OCP)  
  - Overvoltage protection (OVP)  
  - Undervoltage lockout (UVLO)  
  - Thermal shutdown  
- **Package:** SO-16  

### **Descriptions:**  
- The L6571 is designed for resonant half-bridge topologies, commonly used in power supply applications such as LCD/LED TV power supplies, adapters, and industrial power systems.  
- It integrates a high-voltage level shifter and a resonant controller with advanced protections.  

### **Features:**  
- **High-Voltage Startup Circuit:** Reduces external component count.  
- **Adaptive Dead-Time Control:** Ensures zero-voltage switching (ZVS) for improved efficiency.  
- **Programmable Operating Frequency:** Allows tuning for resonant operation.  
- **Burst Mode Operation:** Enhances light-load efficiency.  
- **Synchronization Capability:** Can be synchronized to an external clock.  

For exact datasheet details, refer to STMicroelectronics' official documentation.

Application Scenarios & Design Considerations

HIGH VOLTAGE HALF BRIDGE DRIVER WITH OSCILLATOR

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