LC5523D

Overview

The LC5523D is a single-stage power factor corrected off-line switching controller from the LC5500 series, manufactured by Sanken Electric. It functions as a hybrid IC designed for high-performance power factor correction applications. The component utilizes current-mode control with pulse width modulation technology to optimize efficiency and reduce harmonic distortion in off-line power supplies.

Feature Summary

• Integrates power factor correction and switching control in a single stage
• Employs current-mode control architecture for stable regulation
• Utilizes pulse width modulation for precise output management

Applications

• Off-line power supply systems requiring power factor correction
• Industrial equipment power management circuits
• High-efficiency AC-DC conversion modules

Procurement Notes

Verify availability status carefully as this product may be obsolete or discontinued. Confirm exact package type and pin configuration against official Sanken Electric documentation before integration. Ensure compatibility with existing thermal management solutions given the hybrid IC nature of the component.

Selection Notes

Select this component for designs requiring integrated PFC and switching control without external controllers. Evaluate thermal requirements for the TO-220F package if applicable. Consider the 18kHz maximum switching frequency when designing magnetic components. Verify input voltage ranges match specific application needs.

Part Context

Part of the LC5500 series offering single-stage PFC solutions. Designed for industrial and commercial power applications where size and efficiency are critical. Represents Sanken Electric's expertise in hybrid IC technology for power management.

Replacement Considerations

Check for direct substitutes within the LC55xx series family. Consult Sanken Electric for updated alternatives if this part is discontinued. Ensure replacement maintains equivalent control topology and package dimensions.