IC Phoenix logo

Home ›  L  › L4 > L6571BD

L6571BD from STM,ST Microelectronics

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

L6571BD

Manufacturer: STM

HIGH VOLTAGE HALF BRIDGE DRIVER WITH OSCILLATOR

Partnumber Manufacturer Quantity Availability
L6571BD STM 17500 In Stock

Description and Introduction

HIGH VOLTAGE HALF BRIDGE DRIVER WITH OSCILLATOR The L6571BD is a high-voltage resonant controller manufactured by STMicroelectronics (STM). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Descriptions:**  
- The L6571BD is designed for resonant half-bridge topologies, providing advanced control for high-efficiency power supplies.  
- It integrates a high-voltage gate driver and a resonant controller, enabling zero-voltage switching (ZVS) in LLC resonant converters.  
- Suitable for applications such as AC-DC adapters, LED drivers, and industrial power supplies.  

### **Key Features:**  
- **High-Voltage Startup:** Built-in high-voltage startup circuit (up to 600V).  
- **Frequency Control:** Adjustable switching frequency for resonant mode operation.  
- **Soft-Start:** Programmable soft-start for smooth power-up.  
- **Protections:**  
  - Overcurrent protection (OCP) with adjustable threshold.  
  - Overvoltage protection (OVP).  
  - Undervoltage lockout (UVLO).  
- **Gate Drivers:** High-current gate drivers for external MOSFETs (up to 0.5A source/sink).  
- **Operating Frequency Range:** Typically up to 500kHz.  
- **Package:** SO-16 (L6571BD).  

### **Specifications:**  
- **Input Voltage Range (VCC):** 8.7V to 16V (operating), up to 20V (absolute max).  
- **High-Voltage Startup Current:** ~1mA (typical).  
- **Gate Drive Output Voltage:** 12V (typical).  
- **Operating Temperature Range:** -40°C to +125°C.  

This information is based solely on STMicroelectronics' official documentation for the L6571BD.

Application Scenarios & Design Considerations

HIGH VOLTAGE HALF BRIDGE DRIVER WITH OSCILLATOR
Partnumber Manufacturer Quantity Availability
L6571BD ST 1180 In Stock

Description and Introduction

HIGH VOLTAGE HALF BRIDGE DRIVER WITH OSCILLATOR The L6571BD is a high-voltage resonant controller manufactured by STMicroelectronics. Below are the factual specifications, descriptions, and features from the official knowledge base:

### **Manufacturer:**  
STMicroelectronics  

### **Description:**  
The L6571BD is a high-voltage resonant controller designed for half-bridge topologies in resonant converters. It integrates advanced control functions for efficient power conversion in applications such as LCD/LED TV power supplies, adapters, and industrial power systems.  

### **Key Features:**  
- **Operating Voltage Range:**  
  - VCC supply voltage: 8.6V to 16V  
  - High-voltage startup circuit (up to 500V)  

- **Frequency Control:**  
  - Adjustable switching frequency for resonant operation  
  - Soft-start and frequency shift for smooth startup  

- **Protection Features:**  
  - Overvoltage protection (OVP)  
  - Overcurrent protection (OCP)  
  - Undervoltage lockout (UVLO)  
  - Thermal shutdown  

- **Gate Drive Outputs:**  
  - High-side and low-side gate drivers with 0.5A source/sink capability  
  - Adaptive dead-time control for optimized efficiency  

- **Package:**  
  - SO-16 (Small Outline) package  

- **Applications:**  
  - Resonant half-bridge converters  
  - LCD/LED TV power supplies  
  - Adapters and industrial power systems  

This information is based on STMicroelectronics' official documentation for the L6571BD.

Application Scenarios & Design Considerations

HIGH VOLTAGE HALF BRIDGE DRIVER WITH OSCILLATOR

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips