STMicroelectronics | L6563STR

The L6563STR is a 22.5 V transition-mode PFC controller and is available in SOIC-14 package.

This device is suitable for remote ON/OFF control both in systems where the PFC pre-regulator works as a master and in those where it works as a slave.

Features:

• Tracking boost function
• Fast “bidirectional” input voltage feedforward (1/V2correction)
• Interface for cascaded converter's PWM controller
• Remote ON/OFF control
• Accurate adjustable output overvoltage protection
• Protection against feedback loop disconnection (latched shutdown)
• Inductor saturation protection
• Low (≤ 100 μA) start-up current
• 6 mA max. operating bias current
• 1% (@ TJ= 25 °C) internal reference voltage
• -600/+800 mA totem pole gate driver with active pull-down during UVLO

Applications:

• PFC pre-regulators for:
• High-end AC-DC adapter/charger
• Desktop PC, server, Web server
• IEC61000-3-2 or JEITA-MITI compliant SMPS, in excess of 400 W