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5071MT - LM5071MT

Description

The LM5071 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.

Features

  • n Compatible with 12V ac adapters n Fully Compliant 802.3af Power Interface Port n 80V, 1Ω, 400 mA Internal MOSFET Packages n TSSOP-16 Block Diagram 20168401 © 2005 National Semiconductor Corporation DS201684 www. national. com LM5071 Block Diagram (Continued) www. DataSheet4U. com 20168402 FIGURE 1. Simplified Block Diagram Connection Diagram 20168403 16 Lead TSSOP Ordering Information Order Number LM5071MT-50 LM5071MTX-50 LM5071MT-80 LM5071MTX-80.

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Full PDF Text Transcription

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November 2005 www.DataSheet4U.com LM5071 Power Over Ethernet PD Controller with Auxiliary Power Interface LM5071 Power Over Ethernet PD Controller with Auxiliary Power Interface General Description The LM5071 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 LM5071 is specifically designed for the PD that must accept power from auxiliary sources such as ac adapters. The auxiliary power interface of the LM5071 activates the PWM controller when the ac adapter is connected to power the PD when PoE network power is unavailable. The LM5071 integrates an 80V, 400mA line connection switch and associated control for a fully IEEE 802.
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