ON Semiconductor – PoE interface and power converter supplies up to 40W

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The NCP1081, a member of ON Semiconductor’s HIPOTM Power- over-Ethernet Powered Device (PoE-PD) product family, provides a robust, flexible and highly integrated way to power wireless access points over Ethernet without an external power adaptor.

The NCP1081 combines in a single unit an enhanced PoE-PD interface which is fully compliant with the IEEE802.3af and IEEE802.3at specifications, and a flexible and configurable DC-DC converter. It can supply up to 40W in proprietary PoE applications.

The NCP1081 is fabricated in a robust, high-voltage process and integrates a rugged vertical N-channel MOSFET with a low-loss current- sense technique suitable for the most demanding applications. It can withstand harsh environments such as hot-swap and cable ESD events.

• 150°C maximum junction temperature
• Tolerates cable ESD strikes up to 3kV

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