LM5070 Datasheet (National Semiconductor) - Integrated Power Over Ethernet PD Interface and PWM Controller

LM5070, Integrated Power Over Ethernet PD Interface and PWM Controller

The LM5070 power interface port and pulse width modulation (PWM) controller provides a complete integrated solution for Powered Devices (PD) that connect into Power over Ethernet (PoE) systems.

The LM5070 integrates a 76V, 400mA line connection switch and associated control for a fully IEEE 802.3af

LM5070 Features

* n Fully Compliant 802.3af Power Interface Port n 76V, 1Ω, 400 mA Internal MOSFET n Programmable Inrush Current Limit n Detection Resistor Disconnect Function n Programmable Classification Current n Programmable Under-voltage Lockout with Programmable Hysteresis n Thermal Shutdown Protection n Curre