IC Phoenix logo

Home ›  L  › L4 > L6566B

L6566B from ST,ST Microelectronics

Fast Delivery, Competitive Price @IC-phoenix

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

0.000ms

L6566B

Manufacturer: ST

Multi-mode controller for SMPS

Partnumber Manufacturer Quantity Availability
L6566B ST 60 In Stock

Description and Introduction

Multi-mode controller for SMPS The L6566B is a current-mode primary controller IC manufactured by STMicroelectronics. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range (VCC):** 8.5V to 21V  
- **Operating Frequency:** Adjustable up to 300kHz  
- **Maximum Duty Cycle:** 50%  
- **Start-up Current:** 50µA (typical)  
- **Quiescent Current:** 3mA (typical)  
- **Output Drive Capability:** ±500mA (source/sink)  
- **Protection Features:**  
  - Overvoltage Protection (OVP)  
  - Overload Protection (OLP)  
  - Undervoltage Lockout (UVLO)  
  - Thermal Shutdown  

### **Description:**  
The L6566B is a high-performance, fixed-frequency current-mode PWM controller designed for offline flyback converters. It is optimized for applications requiring high efficiency and low standby power, such as AC-DC adapters and LED drivers. The IC integrates multiple protection features and operates in quasi-resonant mode for improved efficiency.

### **Features:**  
- **Quasi-Resonant Operation:** Reduces switching losses for higher efficiency.  
- **Adjustable Frequency:** Up to 300kHz for flexibility in design.  
- **Current-Mode Control:** Ensures stable operation and fast transient response.  
- **Low Standby Power:** Supports energy-saving applications.  
- **Integrated Protections:** Includes OVP, OLP, UVLO, and thermal shutdown.  
- **Soft-Start:** Minimizes inrush current during startup.  
- **Latch or Auto-Recovery Mode:** Configurable fault management.  

This information is based solely on the manufacturer's datasheet for the L6566B.

Partnumber Manufacturer Quantity Availability
L6566B STM 7200 In Stock

Description and Introduction

Multi-mode controller for SMPS The L6566B is a high-voltage resonant controller manufactured by STMicroelectronics (STM). Below are its key specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Input Voltage Range:** 8.6V to 21V (VCC)  
- **High-Voltage Startup Circuit:** Up to 500V  
- **Operating Frequency Range:** 20kHz to 300kHz  
- **Output Drive Capability:** 400mA source / 800mA sink  
- **Standby Power Consumption:** < 100mW  
- **Protection Features:** Overvoltage (OVP), Overcurrent (OCP), Undervoltage Lockout (UVLO), and Latch-off for fault conditions  
- **Package Options:** SO-16  

### **Descriptions:**  
The L6566B is a resonant-mode controller designed for LLC half-bridge converters, commonly used in power supply applications such as LED drivers, AC-DC adapters, and industrial power systems. It integrates a high-voltage startup circuit, reducing external component count. The device ensures efficient zero-voltage switching (ZVS) operation for improved performance.  

### **Features:**  
- **Resonant Mode Control:** Optimized for LLC topologies.  
- **Adjustable Dead Time:** Ensures ZVS operation.  
- **Frequency Modulation:** For output regulation.  
- **Soft-Start Function:** Reduces inrush current.  
- **Burst Mode Operation:** Enhances light-load efficiency.  
- **Protections:** Includes OVP, OCP, UVLO, and thermal shutdown.  
- **High-Voltage Startup:** Eliminates need for auxiliary supply.  

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

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