This document is the user guide for the FAN9612 400W 4-layer evaluation board, which provides an overview of the evaluation board, key features, specifications, test procedures, schematic, etc.
The document provides a user guide for the FAN9612 400W four-layer evaluation board designed for interleaved boundary-conduction mode power factor corrected supplies. The board features two parallel-connected boost power trains operating 180° out of phase to extend practical power levels and improve efficiency.
| Input Voltage Range | 85~265V ac |
|---|---|
| Output Voltage | 13Voc~18Voc |
| Efficiency (Low Line) | >96% down to 20% load |
| Power Factor | >0.98 at full load |
The non-latching output OVP trip point is set at 108% of the nominal output voltage.
The line UVLO trip point is set at 70Vac with a 10 Vac hysteresis.
Phase shedding occurs when the output power drops to around 150W.