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Wide input flyback converter features 5V at 2.6A output

Posted: 22 Jul 2011 ?? ?Print Version ?Bookmark and Share

Keywords:flyback? powered device? PWM converters? power over Ethernet?

Here's a reference design is for a flyback, 5V Class 3 powered device (PD) with a wide 9V to 57V auxiliary input. The design features the MAX5969B as its controller. The design also uses the MAX5974D, which controls current-mode PWM converters and provides frequency foldback for both the auxiliary input and power over Ethernet (PoE) applications. Using these devices, this reference design is IEEE 802.3af/at compliant. It ican also be used for a Class 3 PD. The design can also support the auxiliary-input voltage range to provide 10W output power.

View the PDF document for more information.

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