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| PD64012G (R) TM 12-PORT PoE PSE MANAGER DESCRIPTION PD64012G is a twelve-port, mixed-signal, high-voltage Power over Ethernet PSE Manager. The IC allows the detection of IEEE 802.3af-2003 powered devices, ensuring safe power feeding and removal over Ethernet ports. With full digital control via a serial communication interface and a minimum of external components, the IC integrates in multi-port and highly populated Ethernet switches. The PD64012G has two possible working configurations: an Automatic stand-alone mode, for basic PoE functions, and an Enhanced mode, for extended functions and added flexibility with the presence of the PD63000G and PD83000G MCU's. FEATURES IEEE 802.3af-2003 and IEEE802.3at-ready Compliant with IEEE 802.3af and pre-standard PD's 12-ports standalone PoE control Power classification with bypass option AC disconnect DC disconnect with DC modulation Supports RFC3621 BENEFITS Freedom to power all PoE PD's including Cisco's inline power Highest integration on the market, enabling the lowest real-estate occupation Reliable and simple AC implementation Supports low power devices Enables integration in Managed Switches ARCHITECTURE I2C or UART host interface 7-bit I2C address selectability Opto-coupler compatible communication lines Up to 96 ports operating autonomously Backwards compatible with all PD64008-based message based user interface Up to 1536 ports on a switch Can be used with PD64004A TECHNOLOGY Best-in-industry integration Single operating voltage source (44 to 57V) 80V SmartMOS8 technology -20oC to +85oC operating ambient temperature LQFP-64 package, ROHS compliant Minimum per port external components No need for external DC/DC converter Power, high-voltage analog and high-density digital logic functions Fit for industrial applications SYSTEM ENHANCEMENT Per-IC soft start mechanism System-wide inrush protection Internal voltages monitoring and auto reset mechanism (Power-On_Reset) Over-voltage and under-voltage protection/lock-out Dynamic Power Management Emergency Power Management (Enhanced Mode) Support for 4-pairs High power architecture (Enhanced Mode) Maskeable Interrupt (Enhanced mode) Programmable port matrix (Enhanced mode) LED streaming (Enhanced mode) Temperature sense/monitoring Minimal power supply stress and EMI noises Power management based on power allocation and priority map, on class value or on both, provides full flexibility and optimal power supply usage Prioritization of ports in case of power reduction Used for power supply failure conditions Capable of powering of up to 31W over 4-pairs Logical to physical port map User can receive interrupts on status or have automatic LED driving Enables system monitoring Per port thermal protection, including PCB protection PD64012G Copyright (c) Microsemi 2007 Rev. April 2007 Microsemi Corporation Analog Mixed Signal Group Information in this document is subject to change without prior notice. This document contains information that is proprietary to Microsemi. As such, it is confidential and its disclosure is strictly prohibited by applicable law. If you and/or your company and Microsemi have executed a Non-Disclosure Agreement, then this document is being provided in connection with the Agreement, and the information contained herein is covered by the Agreement and under its terms |
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