AD-PS3803-RD

AD-PS3803-RD is a power converter reference design board capable of harnessing any IEEE802.3at (PoE+, Type 2)-compliant downstream power over Ethernet (PoE) supply to provide a galvanically isolated DC power. At the core of this solution is the LT8306 60V No-Opto Flyback controller, stepping down the 37V to 57V PoE input voltage to a 12V, 24W DC output. The on-board LT4275 LTPoE++/PoE+/PoE power delivery (PD) controller handles interfacing and power delivery to any PoE supply. The LT4321 ideal diode bridge controller is used for improved end-to-end power delivery efficiency and eased thermal design by utilizing low RDS(ON) N-Channel FETs, replacing the eight-diode configuration typically found in passive PoE rectifier bridge. Suitable for industrial automation, surveillance camera systems, VoIP phones, payment terminal systems and wireless access points.

• AD-PS3803-RD also has auxiliary DC power support for a wide input range of 37V to 57V
• Galvanically isolated 12V flyback DC output with up to 24W of output power capability
• No transformer third winding or opto-isolator for output regulation