L6563/L6563A is a high-performance PFC controller from ST, with very precise adjustable output overvoltage protection, tracking boost function, feedback loop failure protection, cascaded converter's PWM controller interface, input voltage feedforward (1/V2), inductor saturation detection, remote ON/OFF control, etc., and is used in high-end AC-DC adapters/chargers, desktop PCs, servers, WEB servers, and other power supplies.
The L6563 and L6563A are current‑mode PFC controllers operating in Transition Mode, offering precise voltage regulation, low THD and a range of protection features such as over‑voltage protection and feedback‑loop failure detection. The device includes an interface for cascaded PWM controllers, remote ON/OFF control and optional tracking‑boost functionality.
The datasheet provides detailed pin descriptions, absolute maximum ratings, thermal data, electrical characteristics and application information for designing high‑efficiency AC‑DC adapters, SMPS and other power‑factor‑corrected supplies.
| Supply voltage range | 10.3 V – 22 V |
|---|---|
| Start‑up current | 50 µA – 90 µA |
| Quiescent current | 3 mA – 5 mA |
| Maximum thermal resistance (junction‑ambient) | 120 °C/W |
The device can operate from –25 °C to +150 °C (junction temperature).