Microsemi Unveils Industry's First 95W Front-end Solution
Microsemi Corporation has revealed new advanced front-end power device (PD) interface controllers (ICs) for high-power HDBase-T and four-pair Power-over-Ethernet (PoE) applications.
The firm says its PD70210/PD70211 represents the only solution available in the market that is compliant with Power-over-HDBaseT (PoH) and receives up to 95 W using an internal field-effect transistor. The device enables wider reach for PoE communications applications including outdoor IP cameras, small cells, thin clients and monitors.
The PD70210/PD70211 PoE PD IC offers a solution particularly suited for high power applications in the growing broadband market. According to market research firm Infonetics, the small cell market is expected to reach $331 million by the end of 2012, with an expected compound annual growth rate of 62 percent to $2.3 billion in 2016. Microsemi's new device is compatible with its PD-960x midspan family to provide a complete end-to-end HDBaseT solution.
"Microsemi's front-end PD interface controllers offer the communications market the highest levels of power available today for PoH applications and increase our end-to-end solutions to a growing high end segment of the market," says Amir Asvadi , vice president and general manager of the Analogue Mixed Signal Group at Microsemi. "With this new solution, our customers can now use PoE technology in a much wider array of applications - both for today's latest power devices, as well as for next-generation products that will demand increased levels of power."
Unlike the non-standard alternatives, PoH has the same safety mechanisms of IEEE802.3at-2009, with detection performed separately on data and spare pairs, ensuring interoperability. Microsemi's front-end PD IC is compliant with IEEE802.3af, IEEE802.3at and HDBaseT standards and power is provided using HDBaseT or other two-pair/four-pair configurations. As the first solution of its kind, the device supports 95W in one IC with internal FET and operates at high efficiency levels.
Other key features include:
Advanced classification block supporting two-event, three-event, four-event and six-event classifications
Integrated 0.3 Ω isolating switch and inrush current limiter
Identification of which pairs of cable are receiving power
DC/DC input cap for fast discharge
On-chip thermal protection
Internal surge protection
Suitable for both indoor and outdoor PoE and PoH applications
Built-in synchronous current mode PWM controller (PD70211)
The PD70210 is offered in a Pb-free DFN-16 package and the PD70211 is offered in a QFN-36 package. Samples are available to qualified customers now.
