NCP1081DER2G

NCP1081DER2G is an integrated high-power PoE-PD interface and DC-DC converter controller. It is a member of ON Semiconductor’s high-power HIPO Power over Ethernet Powered Device (PoE-PD) product family and represents a robust, flexible, and highly integrated solution targeting demanding medium and high-power Ethernet applications. It combines in a single unit an enhanced PoE-PD interface supporting the IEEE802.3af and the 802.3at standard and a flexible and configurable DC-DC converter controller. It is an exceptional capabilities that offer new opportunities for the design of products powered directly over Ethernet lines, eliminating the need for local power adaptors or power supplies and drastically reducing the overall installation and maintenance cost. ON Semiconductor’s unique manufacturing process and design enhancements allow the NCP1081 to deliver up to 25.5W for the IEEE802.3at standard and up to 40W for proprietary high-power PoE applications.

• Supporting IEEE802.3af and 802.3at standard, supports IEEE802.3at two event layer 1 classification
• High power layer 1 classification indicator, extended power ranges up to 40W
• Programmable classification current, adjustable under voltage lock out
• Programmable operational current limit up to 1100mA for extended power ranges
• Over-temperature protection
• Pass-switch Rds-on is 0.6ohm typ (Max Ron specified at Tj = 130°C)
• Current mode control, supports isolated and non-isolated DC-DC converter applications
• Wide duty cycle range with internal slope compensation circuitry
• Programmable oscillator frequency, programmable soft-start time
• TSSOP-20 EP package, ambient temperature range from -40 to 85°C