Maxim Integrated Products
This application note provides a reference design for an IEEE 802.3af-compliant, 12.95W adjustable-output powered-device module. Assembled on a 12cm2 printed circuit board (PCB), the module is based on the MAX5941B PWM controller and includes hot-swap power switching, a DC-DC converter, and a pair of ORing diode bridges for compatibility with an external 12V adapter. This application note details the performance of the module and provides a schematic, a PCB layout, and a components list for the design.
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