News Release from: PowerDsine UK
Edited by the Electronicstalk Editorial Team on 5 January 2006

Power chip manages four PoE ports

PowerDsine has released a four-channel power over Ethernet manager IC, developed jointly with Freescale Semiconductor.

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PowerDsine has released a four-channel power over Ethernet manager IC, developed jointly with Freescale Semiconductor. The four-port PD64004A joins the 12-port PD64012 and the current PD64004, broadening PowerDsine's offering of PoE silicon solutions. Implemented using Freescale's SmartMOS8 technology, the next generation PD64004A is the most advanced PoE manager in today's market.

The new chip integrates power, analogue and advanced digital logic functions into one device.

It is optimised for use in low-port count Ethernet switches, small office home office (SOHO) routers and midspans, allowing next generation network devices to share power and data over the same cable.

'We believe that as Power over Ethernet penetrates the SOHO market and beyond into gateways and routers in the residential VoIP market, there will be a greater need for standalone solutions that will be cost effective and require minimum design efforts', said Madhu Rayabhari, VP Marketing of PowerDsine.

'In our view the PD64004A, with its automatic capabilities and ease of design, achieves these goals'.

The PD64004A four-port power over Ethernet manager is designed to minimise the number of required external components and to reduce overall system costs.

Capable of operating under a switch ambient temperature range of -40 to +85C, the PD64004A simplifies router and switch vendors' thermal design needs.

While significant for all end applications, this feature has particular benefit for systems targeted for industrial use.

Moving to 1ohm sense resistors, the PD64004A reduces the total thermal dissipation and eases system design.

'Capitalising on the vast experience gained in the low port density PoE market with our current PD64004 four-port manager, PowerDsine incorporated customers' requests for greater performance, and better system cost into the new PD64004A, to create the ideal low port PoE manager', said Rayabhari.

The PD64004A now supports fully automated operation and power management, eliminating the need for adding microcontrollers to control or configure and enabling cost effective PoE implementations with minimal effort on the part of the developer.

Special pins have been dedicated for total setup, in order to allow the device to be truly stand-alone.

Up to eight PD64004A managers can co-operate automatically to provide up to 32 ports of PoE at lowest implementation costs.

The PD64004A's increased thermal range and simplified implementation with automatic power management makes it ideal also for the emerging industrial PoE market.

The PD64004A can also be used together with the PD64012 in any combination, enabling switch manufacturers to create autonomous self-maintained PoE designs from four to 48 ports, with detection, real-time protection and AC or DC disconnection.

Samples of the PD64004A four-channel PoE manager are currently available.

Production for shipment is expected to commence in the first quarter of 2006.

The device is fully compliant with the IEEE802.3af-2003 standard and also works with prestandard proprietary solutions.

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