L6562AD

Overview

The L6562AD is a current-mode Power Factor Correction (PFC) controller operating in Transition Mode (TM). It features a proprietary multiplier design for minimum Total Harmonic Distortion (THD) of AC input current. The device includes an ultra-low start-up current of ≤70 μA and low quiescent current of ≤4 mA. It provides very precise adjustable output overvoltage protection and utilizes a -600/+800mA totem pole gate driver with UVLO pull-down and voltage clamp. The internal reference voltage has a tolerance of 1% at Tj = 25°C.

Feature Summary

• Transition-mode control of PFC pre-regulators
• Proprietary multiplier design for minimum THD of AC input current
• Very precise adjustable output overvoltage protection
• -600/+800mA totem pole gate driver with UVLO pull-down and voltage clamp

Applications

• IEC61000-3-2 compliant SMPS up to 300W
• High-end AC-DC adapter/charger
• Entry level server & web server

Procurement Notes

Verify the specific suffix 'AD' against official STMicroelectronics documentation, as standard datasheets typically list L6562 or L6562A. Confirm package type availability, such as DIP-8 or SO-8, and check for obsolete status indicators like NRND before procurement planning.

Selection Notes

Select this component for applications requiring transition-mode PFC control with low standby power consumption. Ensure compatibility with the required input voltage range and verify that the gate driver capabilities meet the MOSFET or IGBT drive requirements of the target power stage design.

Part Context

The L6562 series represents a family of current-mode PFC controllers developed by STMicroelectronics using BCD technology. It serves as a pin-to-pin compatible successor to the L6561, offering improved performance metrics including lower start-up current and enhanced accuracy in voltage regulation and protection circuits.

Replacement Considerations

L6561 is the predecessor model with pin-to-pin compatibility.