PD64004AH

Product Details

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[ PowerDsine ]

**PD64004A is a four-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 PD64004A has three possible working configurations: an Automatic stand- alone mode, for basic PoE functions, the PoE+ Mode supporting legacy devices and autonomous operation with the PD33000G MCU and an Enhanced mode, for extended functions and added flexibility with the PD63000G and PD83000G MCU’s.

Features Benefits

IEEE 802.3af-2003
Compliant with IEEE 802.3af and pre-stand PD’s
4-ports standalone PoE control
Power classification with bypass option
AC disconnect
DC disconnect with DC modulation
Supports RFC3621
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 88 ports operating autonomously
Backwards compatible with all PD64008 based message based user interface
Up to 1528 ports on a switch
Can be used with PD64012G

Technology
Best-in-industry integration
Single operating voltage source (44 to 57V)
80V SmartMOS8 technology
-40 o C to +85 o C operating ambient temperature
QFN-48-PS 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
Programmable port matrix (Enhanced mode)
LED streaming (Enhanced) or driving (PoE+)
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/direct LED driving
Enables system monitoring
Per port thermal protection, including PCB protection