The LM5073MH is a Powered Device (PD) Interface provides a high performance solution that is fully compliant to IEEE 802.3af for a PD connecting into Power over Ethernet (PoE) networks. The LM5073 provides the flexibility for the PD to also accept power from unregulated auxiliary sources such as AC adapters and solar cells in a variety of configurations. The low RDS(ON) PD interface hot swap MOSFET and programmable DC current limit extend the range of LM5073 applications up to twice the power level of IEEE 802.3af compliant devices. The 100V maximum voltage rating simplifies selection of the transient voltage suppressor that protects the PD from network transients. Control outputs for a separate DC to DC converter are provided to allow freedom to select the best DC to DC converter topology for the particular application.
Versatile auxiliary power options
13V Minimum front auxiliary power range
Programmable DC current limit up to 800mA
Integrated PD Signature resistor
Integrated PoE input UVLO
Inrush current limit
PD Classification capability
Thermal shutdown protection
Line over voltage protection
Complementary open drain outputs for controlling a DC to DC converter
Power good indicator
Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.