STMicroelectronics | L6563

The L6563 device is a current-mode PFC controller operating in Transition Mode (TM). Based on the core of a standard TM PFC controller, it offers improved performance and additional functions.

The highly linear multiplier, along with a special correction circuit that reduces crossover distortion of the mains current, allows wide-range-mains operation with an extremely low THD even over a large load range.

Features:

• Very precise adjustable output overvoltage protection
• Tracking boost function
• Protection against feedback loop failure (Latched shutdown)
• Interface for cascaded converter's PWM controller
• Input voltage feedforward (1/V2)
• Inductor saturation detection (L6563 only)
• Remote ON/OFF control
• Low (≤ 90μA) start-up current
• 5mA max. quiescent current
• 1.5% (@ TJ = 25°C) internal reference voltage
• -600/+800 mA totem pole gate driver with active pull-down during UVLO
• SO14 package

Applications:

• PFC pre-regulators for:
• HI-END AC-DC adapter/charger
• Desktop PC, server, WEB server
• IEC61000-3-2 OR JEIDA-MITI compliant SMPS, in excess of 350W

View the Complete family of L656 Power Controller