LTC9111RMSE#PBF

LTC9111RMSE#PBF is the powered device (PD) controller of Analog Devices' single-pair Power over Ethernet (SPoE) chipset, supplied in the 12-lead MSOP exposed-pad (MSE) package. It sits at the field-device end of a 10BASE-T1L link and handles IEEE 802.3cg classification through the Serial Communication Classification Protocol (SCCP), supporting both SPoE and Power over Data Line (PoDL) variants across the 802.3cg power classes. Integrated polarity correction means the device powers up correctly regardless of how the pair is wired, which removes a common installation failure in retrofitted buildings and plants. The wide 2.3 V to 60 V operating input range and a junction temperature range extending to +150 degrees C suit harsh industrial placements, enabling endpoints such as sensors, actuators and condition monitors to draw both data and up to 52 W-class power over one twisted pair at reaches up to one kilometre, with no local supply or battery. Selection advice: pair this PD controller with an LTC4296-1 PSE at the sourcing end for a fully 802.3cg-compliant link, and order the RMSE code when the MSOP exposed-pad package matches your layout. Parameters verified against Analog Devices documentation.