PD64012G Datasheet | Microsemi

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 munication interface and a minimum of external ponents, 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 Po E 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 - - - - - - pliant with IEEE 802.3af and pre-standard PD’s 12-ports standalone Po E control Power classification with bypass option AC disconnect DC disconnect with DC modulation Supports RFC3621 BENEFITS - Freedom to power all Po E 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 patible munication lines Up to 96 ports operating autonomously - Backwards patible 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 Smart MOS8 technology -20o C to +85o C operating ambient temperature LQFP-64 package, ROHS pliant - Minimum per port external ponents - 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...