Highly-Integrated PoE Chips For IoT

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To meet increasing demand for new PoE+-enabled IoT products in residential, commercial and industrial environments, Silicon Labs has unveiled the new Power over Ethernet (PoE) Powered Device (PD) families including the Si3406x and Si3404. Applications include PoE+ connectivity in IP cameras, smart lighting luminaires, feature-rich video IP phones, advanced 802.11 wireless access points and smart home appliances. These devices include all necessary high-voltage discrete components on a single PD chip to help developers reduce system cost and time to market for high-power, high-efficiency PoE PD applications.

The new PD ICs support IEEE 802.3 at PoE+ power capabilities, flexible power conversion options exceeding 90 percent efficiency, robust sleep/wake/LED support modes and superior EMI immunity, according to the announcement.

“Silicon Labs’ PoE solutions deliver a wide range of power levels up to 30 watts to meet our customers’ demanding power supply needs,” said Ross Sabolcik, Vice President of power products at Silicon Labs. “Our PD portfolio brings industry-leading integration and advanced features to help developers simplify their designs while meeting their power and cost budgets. Addressing both ends of the Ethernet cable, Silicon Labs’ one-stop-shop PoE portfolio includes our new PD devices, as well as PSE controllers and PSE power management ICs.”

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Si3406x ICs

The Si3406x ICs integrate all power management and control functions required for a PoE+ PD application, converting the high voltage supplied over a 10/100/1000BASE-T Ethernet connection to a regulated, low-voltage output supply.

The chips are said to reduce printed circuit board (PCB) footprint and external BOM cost while maintaining high performance.

Si3404 IC

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Complementing the Si3406x family, the Si3404 IC offers cost-effective, 802.3 Type 1 compliant support for lower power 15 W PoE PD applications. The Si3404 includes all interface and control functions required for low-power PD applications in a very small footprint.

Samples and production quantities of the Si3406x ICs are available now in low-profile, 5 mm x 5 mm QFN packages, and the Si3404 device is available now in a low-profile, 4 mm x 4 mm QFN package.

Si3406x product pricing in 10,000-unit quantities begins at $1.34 (USD), and the Si3404 is priced at $1.02 (USD) in 10,000-unit quantities.

To help developers reduce development time and cost, Silicon Labs offers a range of isolated and non-isolated Class 2-4 evaluation kits for Si3406x and Si3404 devices with prices starting at $79 (USD MSRP).

More information:  www.silabs.com/poe-pd.

Press release: http://news.silabs.com/2018-03-05-IoT-Growth-Drives-Demand-for-Silicon-Labs-New-Highly-Integrated-Power-over-Ethernet-ICs

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