On Semi Poe-pd Devices Support 40w Apps

摘要

industry's high power integrated PoE power device (PoE-PD) supporting extended power ranges up to 40W of regulated power delivered to the application load in a 2-pair configuration. Both NCP1082 and NCP1083 fully support the IEEE 802.3af standard. Typical applications targeted by NCP1082 and NCP1083 include VoIP phones, wireless access points, industrial Ethernet I/ O modules, programmable logic controllers (PLCs), pan-tilt-zoom (PTZ) and dome security cameras, and other applications that require an auxiliary supply. The NCP1082/3 support normal PoE operation when power is available on the Ethernet cable. In the event Ethernet power is not available, the device accepts an auxiliary supply input to power the application. This approach eliminates the need for a second DC-DC converter and therefore drastically reduces the bill of materials. The new devices support a wide range of external input voltages from 9V to 57V.