L6563TR

Overview

The L6563TR is a surface-mount Power Factor Correction (PFC) controller manufactured by STMicroelectronics, housed in a 14-SOIC package. It operates as a current-mode Transition Mode (TM) PFC controller with a switching frequency of 70 kHz. The device supports a supply voltage range from 10.3V to 22.5V and functions within an operating temperature range of -25°C to +150°C. Key electrical parameters include a startup supply current of 50 µA and a running current of 5 mA. The component features zero-power detection and is designed for wide-range mains operation with low total harmonic distortion.

Feature Summary

• Operates in Transition Mode (TM) using current-mode control architecture
• Includes highly linear multiplier with crossover distortion correction circuitry
• Features internal voltage feedforward function for improved loop stability
• Provides interface capability with downstream PWM controllers

Applications

• AC/DC power supplies with PFC pre-regulators
• Offline Switch-Mode Power Supplies (SMPS)
• Systems requiring compliance with energy saving norms such as Blue Angel or EnergyStar

Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and functional variations. Ensure the 14-SOIC package dimensions match the target PCB footprint. Confirm that the operating temperature range meets the environmental requirements of the final assembly. Cross-reference the manufacturer part number with authorized distributor catalogs to ensure authenticity and traceability.

Selection Notes

Select this component for designs requiring transition mode PFC control with low standby consumption. Consider the 14-pin SOIC package constraints during layout planning. Evaluate the need for the specific protection features available in this variant compared to other members of the L6563 family. Ensure compatibility with the intended boost inductor and output voltage settings.

Part Context

The L6563 belongs to a family of advanced transition-mode PFC controllers from STMicroelectronics. It is engineered to provide high efficiency and low electromagnetic interference across a wide load range. The device integrates precise error amplifiers and protection mechanisms to ensure reliable operation in standard AC/DC conversion applications.

Replacement Considerations

The L6563STR and L6563ATR are related variants within the same product family. Verify functional equivalence and pin compatibility before substitution. Note that differences may exist regarding specific protection features or operating temperature ranges between these part numbers.