PD64012GH Datasheet PDF - Microsemi Corporation

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PD64012GH
Microsemi Corporation

Part Number PD64012GH
Description 12-PORT HPoE PSE MANAGER
Page 1 Pages


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PD64012GH
® 12-PORT HPoE PSE MANAGER
TM
DESCRIPTION
PD64012GH is a twelve-port, mixed-signal, high-voltage High 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. It also supports pre-standard IEEE802.3at devices consuming up to 59.5W. 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 PD64012GH has two possible working configurations: a low-cost implementation, supporting up to
571mA and a fully IEEE802.3at-ready one. Both maintain the PD64012G Enhanced mode features, for
extended functions and added flexibility with the presence of the PD63000G MCU.
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BENEFITS
IEEE 802.3af-2003 and IEEE802.3at-ready
ƒ Compliant with standard and pre-standard IEEE
802.3af PD’s and IEEE802.3at PD’s
ƒ 12-ports standalone PoE control for IEEE802.3af
and PD’s of up to 25W
ƒ 6-ports PoE control for IEEE802.3at PD’s
ƒ Power classification with bypass option
ƒ AC disconnect
ƒ DC disconnect with DC modulation
ƒ Supports RFC3621
ARCHITECTURE
ƒ I2C or UART host interface
ƒ 7-bit I2C address selectability
ƒ Opto-coupler compatible communication lines
ƒ Up to 96 ports operating autonomously
TECHNOLOGY
ƒ Best-in-industry integration
ƒ Single operating voltage source (44 to 57V)
ƒ 80V SmartMOS8 technology
ƒ -20oC to +70oC operating ambient temperature
ƒ LQFP-64 package, ROHS compliant
SYSTEM ENHANCEMENT
ƒ Per-IC soft start mechanism
ƒ System-wide inrush protection
ƒ Internal voltages monitoring and auto reset
mechanism (Power-On Reset)
ƒ Over-voltage and under-voltage protection/lock-out
ƒ IEEE802.3at Layer 2 classification support
ƒ Dynamic Power Management
ƒ Emergency Power Management
ƒ Support for 4-pairs High power architecture
ƒ Maskeable Interrupt
ƒ Programmable port matrix
ƒ LED streaming
ƒ Temperature sense/monitoring
ƒ Freedom to power all PoE PD’s including
Cisco’s inline power
ƒ Highest integration on the market, enabling the
lowest real-estate occupation
ƒ Enables building IEEE802.3at-ready solutions
or low-cost 25W solutions
ƒ Reliable and simple AC implementation
ƒ Supports low power devices
ƒ Enables integration in Managed Switches
ƒ Backwards compatible with all PD64008-based
message based user interface
ƒ Up to 1536 ports on a switch
ƒ Can be used with PD64004A
ƒ Minimum per port external components
ƒ No need for external DC/DC converter
ƒ Power, high-voltage analog and high-density
digital logic functions
ƒ Fit for commercial applications
ƒ Minimal power supply stress and EMI noises
ƒ Power management based on power allocation
and priority map, on class value or on both,
provides full flexibility and optimal power supply
usage
ƒ Prioritization of ports in case of power reduction
ƒ Used for power supply failure conditions
ƒ Capable of powering of up to 59W over 4-pairs
ƒ Logical to physical port map
ƒ User can receive interrupts on status or have
automatic LED driving
ƒ Enables system monitoring
ƒ Per port thermal protection, including PCB
protection
Copyright © 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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