L6562DTR

Overview

The L6562DTR is a current-mode Power Factor Correction (PFC) controller operating in Transition Mode (TM), manufactured by STMicroelectronics. It is the tape-and-reel variant of the L6562, housed in an SO-8 package. The device features a proprietary multiplier design for minimum Total Harmonic Distortion (THD) of AC input current and includes an on-chip filter on the current sense pin. Key electrical characteristics include a 1% internal reference voltage accuracy at Tj = 25 °C, an ultra-low start-up current of ≤70 μA, and a low quiescent current of ≤4 mA. It supports an extended IC supply voltage range and provides a -600/+800mA totem pole gate driver with UVLO pull-down and voltage clamp capabilities.

Feature Summary

• Transition-mode control of PFC pre-regulators with proprietary multiplier design for minimum THD
• Ultra-low start-up current and low quiescent current for efficient power management
• Very precise adjustable output overvoltage protection
• -600/+800mA totem pole gate driver with UVLO pull-down and voltage clamp

Applications

• PFC pre-regulators for IEC61000-3-2 compliant SMPS (TV, desktop PC, monitor) up to 300W
• High-end AC-DC adapter/charger
• Entry-level server & web server power supplies

Procurement Notes

Verify that the suffix 'DTR' corresponds to the Tape and Reel packaging format, distinct from the tube packaging of the standard L6562D. Confirm the component grade is Industrial. Check for End-of-Life or Not Recommended for New Design (NRND) status, as older revisions may be discontinued. Ensure RoHS compliance matches ECOPACK standards if environmental regulations apply to the specific manufacturing batch.

Selection Notes

Select this component when Transition Mode operation is required for cost-effective PFC solutions up to 300W. It is suitable for designs needing low standby power due to its ultra-low start-up current. The SO-8 package limits thermal dissipation compared to larger packages, so ensure adequate PCB layout for heat management. Verify compatibility with existing BCD technology designs if migrating from predecessors like the L6561.

Part Context

The L6562 series represents STMicroelectronics' solution for transition-mode PFC controllers. The L6562DTR is the surface-mount, tape-and-reel version of the L6562, offering pin-to-pin compatibility with the L6561. It is part of the broader PMIC category, specifically designed for power factor correction applications in consumer electronics and IT equipment.

Replacement Considerations

The L6561 is the direct predecessor with pin-to-pin compatibility. The L6562AT is a related variant with improved performance and different packaging options. Verify functional equivalence before substitution, particularly regarding gate driver strength and multiplier linearity.