The LM5070MTC-50 is a 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 80V, 400mA line connection switch and associated control for a fully IEEE 802.3af compliant interface with a full featured current-mode pulse width modulator dc-dc converter. All power sequencing requirements between the controller interface and switch mode power supply (SMPS) are integrated into the IC.
Fully compliant 802.3af Power interface port
Programmable inrush current limit
Detection resistor disconnect function
Programmable classification current
Programmable under-voltage lockout with programmable hysteresis
Thermal shutdown protection
Current mode pulse width modulator
Supports both isolated and non-isolated applications
Error amplifier and reference for non-isolated applications
(EN)
