L6562D

Overview

The L6562D is a current-mode Power Factor Correction (PFC) controller operating in Transition Mode (TM), manufactured by STMicroelectronics. It utilizes BCD technology and features an extended IC supply voltage range of 10.3V to 22V with a maximum operating temperature of +150°C. The device includes a -600/+800mA totem pole gate driver, ultra-low startup current (≤70µA), and low quiescent current (≤4mA). It offers precise adjustable output overvoltage protection and a proprietary multiplier design for minimum AC input current THD.

Feature Summary

• Proprietary multiplier design ensures minimum total harmonic distortion (THD) of AC input current across wide load ranges.
• Integrated on-chip filter on the current sense pin reduces external component requirements.
• Precise adjustable output overvoltage protection handles transient conditions during startup or load disconnection.
• Totem pole gate driver provides high peak currents suitable for driving large MOSFETs or IGBTs.

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
• Single-stage PFC flyback LED drivers

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status as per the latest datasheet revision. Check for end-of-life notifications or recommended new designations if applicable. Ensure ordering codes match the required temperature grade and packaging format.

Selection Notes

Select this component for applications requiring transition mode control with high efficiency and low standby power consumption. The extended supply voltage range supports various auxiliary winding configurations. The integrated disable function facilitates compliance with energy-saving standards such as Blue Angel and EnergyStar. Verify thermal management requirements given the 150°C junction temperature limit.

Part Context

The L6562D is part of STMicroelectronics' L656x family of PFC controllers. It serves as a pin-to-pin compatible successor to the L6561, offering improved performance characteristics including lower startup current and enhanced linearity. The device is designed for cost-effective solutions in power factor correction pre-regulators.

Replacement Considerations

The L6561 is documented as the predecessor with pin-to-pin compatibility. Verify functional equivalence and performance improvements before substitution. No other direct substitute part numbers are confirmed in the provided source material.