L6562AN

Overview

The L6562AN is a current-mode Power Factor Correction (PFC) controller manufactured by STMicroelectronics, designed for Transition Mode (TM) operation. It is housed in an 8-pin PDIP package and operates within a temperature range of -40°C to +150°C. The device features a proprietary multiplier design for minimum Total Harmonic Distortion (THD), an ultra-low start-up current of ≤70μA, and a low quiescent current of ≤4mA. It includes a disable function, on-chip current sense filtering, and a totem-pole gate driver capable of sourcing 600mA and sinking 800mA.

Feature Summary

• Transition Mode control with proprietary multiplier for minimal AC input current distortion
• Ultra-low start-up and operating currents for enhanced energy efficiency
• Totem-pole gate driver with UVLO pull-down and voltage clamp capabilities
• Precise adjustable output overvoltage protection mechanism

Applications

• IEC61000-3-2 compliant SMPS for TVs, desktop PCs, and monitors up to 300W
• High-end AC-DC adapters and chargers
• Entry-level server and web server power supplies

Procurement Notes

Verify the specific suffix 'AN' corresponds to the PDIP-8 package variant when ordering. Confirm that the component status is acceptable for new designs, as some L6562 variants may carry Not Recommended for New Designation (NRND) status. Ensure compatibility with existing PCB footprints for DIP-8 packages during procurement planning.

Selection Notes

Select the L6562AN for applications requiring pin-to-pin compatibility with the L6561 while benefiting from improved performance characteristics. It is suitable for designs needing low standby power consumption due to its ultra-low start-up current. Consider the extended supply voltage range and robust gate driver strength for driving high-current MOSFETs or IGBTs in PFC pre-regulator topologies.

Part Context

The L6562 series represents an evolution of the L6561 PFC controller, offering enhanced linearity and lower harmonic distortion. Manufactured using BCD technology, it provides a cost-effective solution for compliance with international electromagnetic interference standards. The family supports both standard Transition Mode and Fixed-Off-Time control methods.

Replacement Considerations

The L6562AN is pin-to-pin compatible with the L6561 and other L6562 variants such as L6562D and L6562A. Verify package type differences; the 'N' suffix indicates PDIP packaging, whereas 'D' indicates SOIC. Functionally equivalent, but ensure thermal and mechanical constraints align with the DIP-8 form factor.