Converter exceeds 1000 W/in3, suits Power-over-Ethernet (PoE) applications

The latest member of Vicor's V-I Chip Bus Converter Module (BCM) family, the B048K480T30, provides 2,250 Vdc primary-to-secondary isolation with a unity transformation ratio (K = 1) over the input range of 38 to 55 Vdc. Rated for 300W and with an efficiency of 97%, the device is best suited for Power-over-Ethernet (PoE) and Voice-over-IP (VoIP) applications.

The V-I Chip BCM is based on Vicor's Factorized Power Architecture (FPA) which separates the three classic converter functions - regulation, voltage transformation and isolation - into two power building blocks. The Pre-Regulator Module (PRM) provides regulation. It is upstream of the Voltage Transformation Module (VTM), which provides voltage transformation and isolation. This architecture can be flexibly deployed to allow a designer to combine both PRM and VTM.

Offering a power density at 1,167 W/in3, designers can surface-mount the device with a profile as low as 0.16" for an effective power density of 1,750 W/in3. The device is available in BGA or J-leads. The B048K480T30 BCM is priced at less than 11 cents/Watt in OEM quantities. Sample quantities are available now.

N.S. Manjunath

Vicor
Fax 978-475-6715
www.vicorpower.com