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PRM48JH480T250A00 Datasheet(PDF) 1 Page - Vicor Corporation |
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PRM48JH480T250A00 Datasheet(HTML) 1 Page - Vicor Corporation |
1 / 44 page Features • Optimized for Post PFC operation with 48 V holdup capacitance • 48.0 V nominal input non-isolated ZVS buck-boost regulator • T ransient operation down to 30.0 V for extended holdup during line dropout • 20.0 V to 55.0 V adjustable output range • 250 W output power in 0.57 in2 footprint • 96.7% typical efficiency, at full load • 1676 W/in3 (102 W/cm3) Power Density • 5.29 MHrs MTBF (MIL-HDBK-217 Plus Parts Count) • Pin selectable operating mode Adaptive Loop Remote Sense / Slave • Half VI Chip® Package 22.0mm x 16.5mm x 6.73mm • Optimized for use with PFM based Isolated AC-48 V DC Converters Typical Applications • High Density Power Supply AC-DC rail outputs • High Density ATE system AC-DC power • Telecom NPU and ASIC core power • Communications Systems • Non-isolated and isolated power converters Product Description The VI Chip® PRMTM Regulator is a high e ciency converter, operating from a 45.0 to 55.0 Vdc input to generate a regulated 20.0 to 55.0 Vdc output. The ZVS buck-boost topology enables high switching frequency (~1.03 MHz) operation with high conversion e ciency. High switching frequency reduces the size of reactive components enabling power density up to 1676 W/in3. The Half VI Chip® package is compatible with standard pick- and-place and surface mount assembly processes with a planar thermal interface area and superior thermal conductivity. In a Factorized Power Architecture™ system, the PRM and downstream VTM current multiplier minimize distribution and conversion losses in a high power solution, providing an isolated, regulated output voltage. The PRM48JH480x250A00 has two selectable modes of regulation depending on the application requirements. In Adaptive Loop Operation, the PRM48JH480x250A00 utilizes a unique feed-forward scheme that enables precise regulation of an isolated POL voltage without the need for remote sensing and voltage feedback. In Remote Sense Operation, the internal regulation circuitry is disabled, and an external control loop and current sensor maintain regulation. This a ords flexibility in the design of both voltage and current compensation loops to optimize performance in the end application. PRMTM Regulator Rev 1.2 Page 1 of 44 11/2015 vicorpower.com 800 927.9474 High Efficiency Converter S NRTL C US PRMTM Regulator for Post PFC Operation PRM48JH480x250A00 Product Ratings VIN = 45.0 V to 55.0 V POUT = 250 W VOUT = 48.0 V IOUT = 5.21 A (20.0 V to 55.0 V Trim) |
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