Akros AS1854 GreenEdge PoE PD Passes First PoEPlus Plugfest

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Sunnyvale, Calif.  Sept 28, 2009  Akros Silicon announces its AS1854 Power-over-Ethernet (PoE) Powered-Device System-on-Chip (PD SoC) has successfully demonstrated compliance with IEEE 802.3at and IEE802.3af standards and multi-vendor interoperability. Results were announced following tests conducted by the New Hampshire InterOperability Laboratory.

The UNH-IOL۪s first Power-over-Ethernet plugfest to include PoEPlus equipment was held in conjunction with the IEEE۪s recent ratification of the PoEPlus standard (IEEE802.3at).  Releasedearlier this year, the AS1854 is the only PD solution in the industry to integrate on-chip digital isolation technology. Akros۪ patented GreenEdge digital isolation technology eliminates low-speed, bulky opto-couplers and integrates functionality of up to nine separate ICs used in current solutions, including a third-generation IEEE 802.3at/af digital PD controller and quad-output digital power DC-DC converters.

“PoEPlus interoperability testing by UNH-IOL is an important milestone for the industry,” said Amit Gattani, Network Power Business Unit Director for Akros. “It sends a strong message to our customer base that standards-compliant and interoperable equipment is available from multiple vendors, and that customers can deploy PoEPlus appliances without concern. Akros has led the industry effort to create the PoEPlus standard and bring advanced and cost-effective silicon solutions to marketsuch as the AS1854 product family, which fully utilizes the PoEPlus standard۪s dynamic power management capability.”

The AS1854 architecture is uniquely designed to provide intelligent and real-time power data from the high-voltage network side to the system micro-controller and software across AS1854۪s internal 2kV isolation boundary. This data can be used by the PD appliance to communicate real-time power consumption and demand needs to any power sourcing equipment (PSE) utilizing IEEE802.3at standard-defined data-link-layer packets. By enabling dynamic and intelligent allocation of power over the Ethernet networks, tremendous enterprise energy savings are realized.

The Power-over-Ethernet Consortium uses both IEEE802.3at and IEEE802.3af-compliant power sourcing equipment to test PoE products and software from both an interoperability and conformance perspective. The AS1854 Powered Device interoperability testing, for example, was conducted using PSEs from leading industry suppliers including Cisco, HP, Broadcom, Silicon Labs, Panasonic, Phihong and MicroSemi.

About Akros Silicon

Headquartered in Silicon Valley, Akros Silicon provides leading-edge, intelligent energy management ICs. Akros۪ disruptive silicon technology makes it possible to integrate multiple ICs, high-voltage isolation and discrete components into a single device, thus enabling electronic OEMs to develop cost-effective and energy-efficient solutions.

Integrated Digital Isolation drives Intelligent Power – Electronic Products, Power Supplement

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The advent of Power over Ethernet (PoE) has enabled powering network devices via the same Ethernet cable used for data. This sharing capability eliminates the need to provide a wall-wart power cube and power outlet for each device, thereby consolidating network power at the power-sourcing equipment (PSE). While the new IEEE 802.3at standard is best known for its increased power maximum (from 13 to 25.5 W), perhaps its most enterprise-friendly feature is the added control functionality that allows for dynamic allocation of per-port power device (PD) power by the PSE. Power can now be allocated much as data bandwidth is today.

Read more…

Digital power SoC integrates 2kV isolation – EEProductCenter.com

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Sunnyvale, Calif.Akros Silicon Inc. has introduced a 2kV-isolated, quad-output digital power SoC that can be used in a wide range of industrial, datacom, automotive, medical, residential gateway, display…

Read more…

Integrated Digital Isolation Delivers Enterprise Energy Efficiency Benefits – Bodo’s Power, July 2009

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Power over Ethernet (PoE) standards have made it possible to deliver power to networkdevices along the same Ethernet cable used for data, liminating the need to provide awall wart۪ power cube for each device.

Network power is thereby consolidated at the Power Sourcing Equipment (PSE) in the data-center, which has tremendous benefits of lowering cost, simplifying infrastructure and providing backup power management.

Overall power management has been crudely addressed in previous-generation PoE clients via power classification, but these have largely been limited and static solutions.

Bodo’s Power Systems recognizes AS1854 as “Green Product of the Month” – June 2009

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First PoE Powered Device Platform with Integrated GreenEdge 2kV Isolation.

The AS1854 is a highly efficient, integrated and cost-effective Power SoC solution that
enables network- based energy management features for green enterprise.

Visit Bodo’s Power Systems for article archives

Akros Silicon Introduces Industry’s First PoE Powered Device Platform with Integrated GreenEdge 2kV Isolation

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Sunnyvale, Calif. May 18, 2009 – Akros Silicon Inc. today announced the AS1854, the industry۪s first Power over Ethernet (PoE), Power System-on-a-Chip (Power SoC) with 2kV integrated isolation for the next generation of IP appliances such as IP phones, IP cameras, wireless access points (WAP), Thin Client terminals, and WiMAX CPEs. Built around Akros۪ patented GreenEdge digital isolation technology, the AS1854 eliminates low-speed, bulky opto-couplers and integrates functionality of up to nine separate ICs used in current solutions, including a third-generation IEEE 802.3af/at PD controller and quad-output digital power DC-DC converters. The result is a cost-effective PoE and power management solution in a single package that substantially reduces design footprint and bill-of-material. It delivers superior DC-DC efficiency and enables direct digital management of both isolated primary-side power and secondary-side system power for real-time, end-to-end green power applications.

The AS1854 features cross-isolation DC-DC timing management and digital power control that delivers higher DC-DC efficiency across the range of light- to full-load conditions. With seamless communication between the primary and secondary power domains,the AS1854 implements many advance diagnostic features and high-voltage telemetry features. This enables remote power management and IT servicing of devices, therefore reducing IT truck rolls and service costs for end customers. Now OEMs can design a wide range of cost-effective and value-added products to capitalize on energy-efficiency market trends.

“Energy management plays an increasingly integral role in IT services, with a tremendous demand from enterprises to reduce energy consumption and to extend intelligence of remote network management to power subsystems,” said Parviz Ghaffaripour, CEO of Akros Silicon. “The new AS1854۪s GreenEdge isolation technology enables complete remote monitoring and control of IP appliance power subsystems, making network-based energy management a practical reality. The AS18x4 products allow our customers to create a value-added and differentiated feature set in a cost-effective mannerand to pass on the recurring energy-saving benefits to their end customers.”

The AS1854 is part of the AS18x4 product family, which includes the AS1854, AS1844, AS1834 and AS1824. These devices offer a complete range of high-end to low-end and high-power (PoE Plus, IEEE802.3at-pre) to low-power (IEEE 802.3af) products that meet diverse product line requirements and provide substantial cost savings. AS18x4 products are available in footprint-compatible, 64-pin 9×9 QFN, Reduction of Hazardous Substance (RoHS)-compliant packages. Akros offers complete reference designs, evaluation boards, graphical user interface (GUI) evaluation software and design documentation. AS18x4 products are shipping in pre-production quantities to early access customers. Device pricing is available upon request. To contact a local manufacturing representative and to order samples.

About Akros Silicon

Headquartered in Silicon Valley, Akros Silicon is a provider of leading edge, intelligent energy management ICs that enable practical implementation of global green power management initiatives.  Akros۪ disruptive silicon technology makes it possible to integrate multiple ICs and discrete components into a single device, thus enabling electronic OEMs to develop cost-effective and energy-efficient solutions.  Akros ICs enable low-cost and large-scale deployment of the latest-generation of network-powered appliances, creating large-scale managed power networks.

Akros Announces Industry۪s First Integrated Powered Device Controller Supporting 2-Event Physical Layer Classification per Upcoming IEEE?802.3at Power-Over-Ethernet Standard

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Folsom, Calif. March 17, 2008 – Akros Silicon Inc., a leader in Power-over-Ethernet (PoE) mixed-signal ICs, today announced the industry۪s first Powered Device (PD) Controller, implementing the 2-Event Physical Layer Classification functionality of the IEEE 802.3at standard (Draft 2.0). This upcoming PoE standard raises the maximum available PD input power to 30W from the previously specified level of 13W in the existing 802.3af standard. The new 30W power level opens up a range of new applications for PoE, including IP Security Cameras with Power, Tilt and Zoom (PTZ) capability, new multi-radio 802.11n Wireless Access Points, WiMax Customer Premise Equipment, SOHO Ethernet Switches, Thin Clients and LCD Displays.

The 2-Event Classification allows the PD to recognize whether it is connected to a Type 1 (802.3af/13W) or Type 2 (802.3at/30W) Power Sourcing Equipment (PSE), and vice-versa. The 2-event Classification informs the IEEE 802.3at compliant PSE that it is safe to increase power delivered to the PD from 13W to 30W. Use of this classification protocol between Type 2 PSE and Type 2 PD enables dynamic negotiation and allocation of power, leading to more efficient system power management.

“While many silicon vendors have been developing and announcing controllers suitable for high power applications for some time, as the first to include support for 2-Event classification in its PD Controller, Akros Silicon has demonstrated its commitment to this growing market,” said Brian Greenberg, senior analyst at VDC, who tracks the PoE and Power Management markets.

Akros Silicon has also successfully completed testing the interoperability of the new AS1135 PD Controller with Microsemi۪s recently released PD64001 PSE Power Manager, in accordance with the IEEE 802.3at-Draft2.0 standard an important milestone for the industry, as it allows customers to effortlessly implement both ends of the PoE link (both PSE and PD).

The AS1135 controller is an extension of Akros۪ highly successful and field-proven AS1100 family, supporting many new features in the same small 5×5 20pin QFN package. The part provides AT Detect functionality on a logic output pin, indicating successful PoE connection to Type 2 PSE. This hardware feature can be used by the system micro-controller to self-configure the networked appliance based on the power delivery capability of the network. The AS1135 is also capable of operating with local power input as low as 10V.

“There are many instances where it is beneficial to provide Ethernet appliances that can operate from the power supplied by either the PoE line or a local power source,” said Amit Gattani, director of marketing, Akros Silicon. “For instance, manufacturers of IP cameras may want to provide the local power option to allow their product to be used in a network that has not yet been upgraded to PoE. This feature allows system designers to benefit from the use of commonly available, low-cost 12V power adapters for auxiliary power.”

Another new feature is the capability to externally set the switching frequency of the integrated DC-DC controller in the 100kHz – 500kHz range. This gives designers added flexibility to optimize the system for parameters like EMI, power consumption and component sizes. Lower switching frequencies can be beneficial in controlling EMI and improving no-load efficiency. Designers may also use higher switching frequencies to reduce the size of components used in the power converter output stage. These features are additions to standard features found in the AS1100 product family like integrated surge protection and low emissions DC-DC controller, to enable EMC ready system designs.

Pricing and Availability

Akros offers reference designs and evaluation boards to help evaluate the performance of the AS1135. The AS1135 is available in a 20-pin 5×5 QFN with a Reduction of Hazardous Substance (RoHS) compliant package. The device is priced at $1.66 for 1kU quantity. To find a local manufacturing representative and order samples, visit http://www.AkrosSilicon.com.

Summary of Features

The AS1135 is fully integrated and designed to provide the following features at a system level:

  • Full support of the IEEE Std. 802.3af-2005 and pre-standard IEEE Std. 802.3at (Draft 2.0) power requirements
  • Support of the 2-event Physical Layer Classification (per 802.3at Draft 2.0 standard), with hardware AT-Detect output
  • Meets the IEC 61000-4-2/3/4/5/6 and IEC 60950 requirements for Surge, EMI and Isolation
  • Integrated surge protection for board level surge meets > 15kV Air Discharge (IEC61000-4-2), > 8kV Contact
  • Discharge (IEC61000-4-2) and > 6kV Surge (IEC61000-4-5)
  • Integrated DC-DC converter with reduced EM emission for CISPR22/FCC part 15 Class B applications
  • Programmable DC current limit up to 800mA
  • Provides seamless support for local power down to 10V
  • Programmable frequency 100kHz to 500kHz
  • Low on resistance Hot Swap FET (0.8? typ)
  • Over temperature protection

About Akros Silicon

Headquartered in Folsom, California, Akros Silicon (Akros is a Greek word for edge) is a leading provider of highly differentiated system-level integrated circuits that provide advanced power management to the edge of the network. Akros Silicon۪s disruptive silicon technology enables large scale deployment of network-attached appliances, such as VoIP phones, wireless LAN access points, RFID tag readers, point-of-sale terminals, networked cameras, remote access and home-networked systemsaccelerating the convergence of data, audio, and video applications.

Akros Announces World’s First Family of Active EMI Suppression Devices with ESD Protection for Ethernet Applications

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Folsom, Calif. December 3, 2007 – Akros Silicon, Inc. today announced the availability of the AS1602 that provides an unparalleled combination of system level EMC compliance and surge protection for Ethernet applications, without impacting data transmission speeds. The device integrates unique active chokes that provide 10dB of additional common mode (CM) noise suppression over the entire Ethernet bandwidth (1MHz to 125MHz), allowing designers to meet Class B compliance (FCC Part 15 or CISPR22) effectively Designing for EMC۝ from early in the design process. Additionally, the AS1602 provides an unprecedented level of ESD protection by enabling the system to exceed +/- 25kV air discharge (IEC 61000-4-2 specifications) and +/-12kV cable discharge event (CDE).

“With the AS1602 featuring active EMI & ESD suppression for Ethernet applications, Akros Silicon is addressing protection requirements for any equipment that connects to LANs,” said Jag Bolaria, senior analyst with the Linley Group. “This product is uniquely positioned in the market as an industry-first due to it being an active device, which provides customers with a system-level protection solution.”

Alternative solutions meet EMI and system ESD requirements through the use of external passive components e.g. diodes/TVS or magnetic chokes. These passive components add significant parasitics that degrade the Ethernet performance requiring multiple design turns to meet the toughest EMC requirements with little margin. In some cases the designs go through a complete re-design in order to meet the tough EMC requirements. By comparison, Akros۪ AS1602 allows designers to solve both EMC and ESD suppression using a single, compact IC, enabling them to get products to market earlier by eliminating the EMC tweaking required in the past.

“EMC compliance is one of the major challenges faced by system designers,” said Ven Shan, vice president of marketing, Akros Silicon. “The AS1602 will help to reduce the arduous hours of debug efforts in the lab and limit or eliminate multiple board spins so customers can avoid product launch delays.”

The AS1602 is placed between the Ethernet PHY and the line transformer. This preserves the integrity of the Ethernet signals by providing very low common mode impedance while maintaining high differential impedance and low differential capacitive loading. It suppresses CM noise in both directions – ingress and egress. This increases the system۪s immunity to CM noise coming from the Ethernet cable, and prevents emission of CM noise to the same cable by compensating for many variables that are the source of noise in Ethernet systems. These variables include: CM noise from Ethernet PHY DACs and drivers, variations in Ethernet line signals caused by Ethernet transformer and passive component mismatches as well as variations in PC board designs and different vendor PHYs.

The AS1602 device enables customers who have already achieved Class A compliance to easily migrate to Class B (CISPR22 and FCC Part 15, Class B requirements for Radiated and Conducted Emissions) or to achieve consistent margin over the entire Ethernet signal bandwidth of 1MHz to 125MHz in 10Base-T/100Base-TX/1000Base-T applications. Additional EMC margin enables customers to address varying global compliance requirements with one product design for global markets.

10/100 Ethernet applications will use a single AS1602 while Gigabit Ethernet applications will use two AS1602s. The AS1601 is a companion product that provides EMI suppression only. Both products are suitable for a wide range of Ethernet applications including voice over IP (VoIP) phones, security cameras, wireless access points (WAP), set top boxes, networked printers and appliances, desktop and laptop computers.

Key Features of AS1602:

EMI Performance:

  • CISPR22 and FCC Part 15, Class B requirements for Radiated and Conducted Emissions
  • IEC 61000-4-3/6 requirements for Radiated and Conducted Immunity

ESD performance:

  • Robust built-in ESD protection provides additional protection for PHY and improves system
  • IEC 61000-4-2 (air discharge) +/- 25kV (AS1602 only)
  • Cable Discharge Event (CDE) +/- 12kV (AS1602 only)
  • JESD22-A114, ESD, HBM +/- 8kV (AS1602 only)
  • JESD22-A114, ESD, HBM +/- 2kV (AS1601 only)

Other Key Features:

  • Does not degrade Ethernet performance: Passes Gigabit Ethernet return loss with margin
  • Single supply operation (3.3V or 2.5V)
  • Typical power consumption of 90mW, Low power mode of 55mW
  • Industrial temperature range (-40?C to 85?C)
  • Tiny 16-pin QSOP RoHS compliant package
  • The AS1602 is priced at $1.60 for 1K quantity. The AS1601 is priced at $1.23 for 1K quantity.

About Akros Silicon

Headquartered in Folsom, California, Akros Silicon (Akros is a Greek word for edge) is a leading provider of highly differentiated system-level integrated circuits that provide advanced power management to the edge of the network. Akros Silicon۪s disruptive silicon technology enables large scale deployment of network-attached appliances, such as VoIP phones, wireless LAN access points, RFID tag readers, point-of-sale terminals, networked cameras, remote access and home-networked systemsaccelerating the convergence of data, audio, and video applications.

Akros Announces an Integrated 30W Powered Device (PD) PWM Controller for the Emerging PoE Plus Applications

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Folsom, Calif. October 2, 2007 – Akros Silicon, Inc. today announced the availability of its AS1130 device, an extension to its family of Power over Ethernet (PoE) Powered Device (PD) controllers. The AS1130 provides the same small footprint and high integration as its predecessors, the AS1113 and AS1124. In addition, the new device provides up to 30W power delivery on the network cable, allowing for the deployment of high-end security cameras and wireless LAN access points.

The first version of the POE specification, IEEE 802.3af, was released in 2003 and provides sufficient power delivery on the network cable to realize Voice over IP (VoIP) phones, basic security cameras and wireless access points (WAP). The success of this first PoE standard has set the stage for remotely powering more sophisticated applications. Pan, Tilt, Zoom (PTZ) Video security cameras, 802.11n wireless LAN access points and remotely powered and controlled switching and routing appliances require higher power than the 13W offered by the 802.3af standard. This prompted the IEEE to develop the 802.3at standard, which is due for letter ballot approval in 2008. The 802.3at standard defines power delivery of up to 30W on an Ethernet Unshielded Twisted Pair (UTP) cable. The AS1130 has been designed to deliver these power levels and meet the emerging 802.3at standards requirements.

“Despite the 802.3at standard being at least a year from final ratification, our research indicates that OEMs are already evaluating and introducing designs based on some version of high powered PoE. By making the AS1130 available to the broader market, Akros has positioned itself to take advantage of the growing number of OEMs not willing to wait for 802.3at ratification,” said Brian Greenberg, senior analyst at Venture Development Corporation (VDC). “The availability of enabling PoE technologies like the AS1130 will open the doors to applications such as multi-band WAPs, RFID readers and other devices that were not previously able to exist in an 802.3af PoE environment.”

Akros۪ innovative silicon solutions, built on standard HV CMOS technology allows for a highly integrated design that includes the PoE PD controller, low Rds hot swap MOSFET and a DC-DC controller.  This level of integration removes approximately 18 external components from the application circuit. The low part count provides for a greater than 50 percent reduction it the PCB layout footprint and a significant BOM cost savings compared to competing solutions. The short interconnect to the RJ-45 jack and the controlled Pulse Width Modulated (PWM) output waveform on the DC-DC controller are both key in reducing radiated emissions and meeting industry Electromagnetic Compliance (EMC) requirements.

The AS1130۪s high level of integration provides significant reliability, protection advantages and simplifies the PoE PD design. The device provides seamless support for local power and over temperature protection. Additionally, pin compatibility between the AS1113, AS1124 and AS1130 allows the designer to support multiple power levels without a complete redesign of the system PCB. Integrating these components also substantially reduces board-to-board variation and increases overall manufacturability and provides the customer with time to market advantage.

The AS1130 also provides advanced power management through integration of a hot-swap switch with a programmable maximum current limit of 800 mA. The DC-DC architecture is a current mode converter which can be configured with external component changes for either fly-back, forward, or buck topologies to support non-isolated or isolated switching topologies. The AS1130 device includes a series of platform tested circuit capabilities to assist system designers in providing solutions that meet or exceed the current regulatory and extreme environmental usages. Specifically, the device supports the two finger classification and is backward compatible to current 802.3af customer needs. Akros offers optimized yet flexible silicon solution enabling its customers to bring to market higher performance PoE PD products with low cost and small footprint.

The AS1130 is fully integrated and architected at a system level to provide the following features:

  • Fully supports IEEE Std. 802.3af-2003 and supports pre-standard IEEE  Std. 802.3at-2006 power needs
  • Meets IEC 61000-4-2/3/4/5/6 and IEC 60950 requirements for Surge, EMI and Isolation
  • Integrated surge protection for board level surge meets > 16.5kV air discharge (IEC61000-4-2), > 8kV contact discharge (IEC61000-4-2) and > 6kV       Surge (IEC61000-4-5)
  • Integrated DC-DC converter with reduced EM emission for CISPR22/FCC part 15 Class B applications
  • Programmable DC current limit up to 800mA
  • Provides extended classification levels for higher power PD applications (pre 802.3at compliant)
  • Provides seamless support for local power
  • Over temperature protection

In its most recent 5-year forecast, Dell’Oro Group predicts that PoE shipments will grow from 32M ports in 2006 to 145M ports in 2011.

“The AS1130 is the industry۪s first footprint compatible, fully scalable and thermally robust PD/PWM controller to address the entire range of networked applications to 30W. This compact, highly integrated PD/PWM controller is footprint compatible with AS1113 and AS1124 meets 802.3af and pre-802.3at standards,” said Ven Shan, vice president of marketing, Akros Silicon. “The device۪s flexible current mode architecture allows multiple AS1130۪s ICs to be synchronized for load sharing enabling much higher power levels to 60W to address the needs of fast growing high power Ethernet appliances that are powered by the networks.”

AS1130 is available in a 20-pin QFN, Reduction of Hazardous Substance (RoHS) compliant, and package. The device is priced at $1.66 for 1kU quantity.

About Akros Silicon

Headquartered in Folsom, California, Akros Silicon (Akros is a Greek word for edge)  is a leading provider of highly differentiated system-level integrated circuits that provide advanced power management to the edge of the network. Akros Silicon۪s disruptive silicon technology enables large scale deployment of network-attached appliances, such as VoIP phones, wireless LAN access points, RFID tag readers, point-of-sale terminals, networked cameras, remote access and home-networked systemsaccelerating the convergence of data, audio, and video applications.

Akros Releases World۪s Smallest Footprint Power over Ethernet Powered Device Family

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Folsom, Calif. May 22, 2007 – Akros Silicon, Inc. today announced the availability of its AS1100 family of devices offering the smallest footprint and highest integration for Power over Ethernet (PoE) Powered Device (PD) applications. The AS1100 family enables customers to bring to market higher performance products including VoIP phones, IP security cameras and wireless LAN access points.

With video surveillance rapidly migrating to IP networks, Mark Kirstein, vice president of multimedia content at iSuppli, commented, “Semiconductors enabling video surveillance equipment such as, cameras, DVRs and IP video servers, will grow to an estimated $2 billion in revenue by 2011. Companies that are able to innovate and capitalize on this next-generation of semiconductor solutions – by networking the equipment – will capture a strong portion of the market in this rapidly growing industry.”

The AS1100 family includes the AS1113 device for IEEE® 802.3af-2003 specification power levels and the AS1124 device for either 802.3af or 802.3at pre-standard power levels. The innovative silicon solutions, built on standard HV CMOS technology, include system-level circuitry for lower EMI emissions and robust surge protection in addition to the PD controller functionality.

The AS1113 and AS1124 devices include a series of platform tested circuit capabilities to assist system designers in providing solutions that meet or exceed the current regulatory and extreme environmental usages. The AS1113 for 13W applications includes the current 802.3af PD standard. The AS1124 for 24W applications encompasses the pre-802.3at standard with two finger classification and is backward compatible to current 802.3af customer needs.

The AS1100 family combines rectification and protection circuitry with a PD controller and a DC-DC controller. This high level of integration provides significant reliability and protection advantages, as well as simplifies the PoE PD design. The devices provide seamless support for local power and over temperature protection. Additionally, the pin compatibility between the AS1113 and AS1124 allows the designer to use the same PCB for higher power applications, often without the need for a complete redesign.

The AS1100 family also provides advanced power management through integration of a hot-swap switch and a DC-DC controller that operates from a switched input voltage and includes soft-start and current limiting functions. The DC-DC architecture is a current mode converter, which can be configured with external component changes for either fly-back, forward, or buck topologies to support non-isolated or isolated switching topologies. The dual switch architecture minimizes noise, maximizes efficiency and reduces the switch breakdown requirements for a lower cost solution. Akros offers optimized yet flexible silicon solutions, enabling its customers to bring to market higher performance PoE PD products with low cost and small footprint.

The AS1100 is fully integrated and architected at a system level to provide the following features:

  • Fully supports IEEE  Std. 802.3af-2003 and supports pre-standard IEEE  Std. 802.3at-2006 power needs
  • Meets IEC 61000-4-2/3/4/5/6 and IEC 60950 requirements for Surge, EMI and Isolation
  • Integrated rectification and protection for board level surge meets > 16.5kV air discharge (IEC61000-4-2), > 8kV contact discharge (IEC61000-4-2) and > 6kV Surge (IEC61000-4-5)
  • Integrated DC-DC converter with reduced EM emission for CISPR22/FCC part 15 Class B applications
  • Programmable DC current limit up to 800mA
  • Provides extended classification levels for higher power PD applications (pre 802.3at compliant)
  • Provides seamless support for local power
  • Over temperature protection

In its most recent 5-year forecast, Dell’Oro Group predicts that PoE shipments will grow from 32M ports in 2006 to 145M ports in 2011.

“The AS1100 family of devices is the industry۪s first highly integrated PD family that addresses the needs of the high growth PoE market,” said Ven Shan, vice president of marketing, Akros Silicon. The customer response we have seen indicates that Akros engineers have set a new bar in PD solution excellence that will be well received by the entire PoE eco-system. The AS1100 family is unique in addressing EMI and surge resilience,  offering a superior level of integration that allows PoE PD manufacturers to take advantage of the industry۪s smallest footprint while saving overall system cost and maximizing system efficiency.

A key requirement of POE systems is immunity to overvoltage and surge events. Integrating the diode bridge and protection circuitry significantly increases the reaction time of protection devices and PHY immunity to over-voltage stress events. Integrating these components also substantially reduces board-to-board variation and increases overall manufacturability providing the customer with time to market advantage.

AS1113 and AS1124 devices are available in a 20-pin QFN Reduction of Hazardous Substance (RoHS) compliant packages. The AS1113 and AS1124 are priced at $1.33 and $1.46 for 1kU quantity respectively.

About Akros Silicon

Headquartered in Folsom, California, Akros Silicon (Akros is a Greek word for edge) is a leading provider of highly differentiated system-level integrated circuits that provide advanced power management to the edge of the network. Akros Silicon۪s disruptive silicon technology enables large scale deployment of network-attached appliances, such as VoIP phones, wireless LAN access points, RFID tag readers, point-of-sale terminals, networked cameras, remote access and home-networked systems accelerating the convergence of data, audio, and video applications.