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L6564D

L6564D Description

The L6564D from STMicroelectronics is a transition-mode Power Factor Correction (PFC) controller IC, designed for high-efficiency AC-DC power supplies. Operating within a 10.3V to 22.5V supply range, it features a discontinuous conduction mode (DCM) with transition-mode control, ensuring optimal power factor correction and low harmonic distortion. Packaged in a 10SSOP surface-mount form factor, it is RoHS3 compliant and suitable for industrial and consumer applications requiring compliance with energy efficiency standards. With a low startup current of 90 µA, it minimizes power losses during initialization.

L6564D Features

• Transition-Mode PFC Control: Ensures high power factor (>0.99) and low THD (Total Harmonic Distortion).
• Wide Supply Voltage Range (10.3V–22.5V): Supports flexible design integration.
• Low Startup Current (90 µA): Reduces standby power consumption.
• Surface-Mount 10SSOP Package: Compact and suitable for space-constrained PCB designs.
• Discontinuous Conduction Mode (DCM): Improves efficiency at light loads.
• Active Clamp Circuitry: Enhances reliability by limiting voltage spikes.
• RoHS3 & REACH Compliant: Meets environmental and regulatory standards.

L6564D Applications

• Switch-Mode Power Supplies (SMPS): For servers, telecom, and industrial equipment.
• LED Drivers: High-efficiency PFC stage in LED lighting systems.
• Consumer Electronics: Adapters, TVs, and appliances requiring compliance with IEC 61000-3-2.
• Renewable Energy Systems: Solar inverters and energy storage solutions.
• Industrial Power Units: Where stable, high-power-factor AC-DC conversion is critical.

Conclusion of L6564D

The L6564D stands out as a high-performance PFC controller with low standby consumption, robust transition-mode operation, and compact packaging. Its ability to deliver near-unity power factor makes it ideal for energy-efficient power supplies in industrial, consumer, and renewable energy applications. Compared to similar models, it offers better light-load efficiency and simplified design integration, making it a preferred choice for engineers prioritizing performance and compliance.