L6563/L6563A is an advanced transition-mode PFC controller with very precise adjustable output overvoltage protection, tracking boost function, protection against feedback loop failure, interface for cascaded converter's PWM controller, input voltage feedforward, inductor saturation detection, remote ON/OFF control.
The L6563 and L6563A are current‑mode PFC controllers operating in Transition Mode, offering precise voltage regulation, low THD, and functions such as over‑voltage protection, feedback‑failure protection, and (for L6563) inductor‑saturation detection. They support tracking‑boost operation, remote ON/OFF control, and can drive high‑current MOSFETs or IGBTs with a totem‑pole output stage.
The document provides a complete pin description, absolute maximum ratings, thermal data, and detailed electrical characteristics, along with application guidance for AC‑DC adapters, desktop PCs, servers, and high‑power SMPS designs.
| Supply voltage operating 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 operates with a supply voltage between 10.3 V and 22 V.
The start‑up current is specified as 50 µA to 90 µA.