Multi-output power supplies for 1U applications

19 October 2005 Power Electronics / Power Management

Power-One has expanded its BLP55 Series by adding the BLP55-3000 and the BLP55-3300 triple-output AC-DC power supplies. These products are ideal for 1U 'pizza-box' applications as they are cost effective and can provide enhanced flexibility in the physical layout and power distribution architecture of the host system.

Host-system physical-layout flexibility is enhanced by reduced airflow requirements (eliminating the need to be directly adjacent to a cooling fan) and a low 32 mm height that reduces airflow shadowing to improve cooling of downstream devices. Power-distribution architecture flexibility is enhanced by the availability of 3,3 and 5 V outputs, suitable for any desired combination of bus voltage and/or direct-power usage.

Both models accept a wide-range 85 to 264 V a.c. input, and only need 10 CFM of cooling to provide full-rated power. The BLP55-3000 delivers +5 V @ 5 A, +12 V @ 2,5 A, and -12 V @ 0,7 A. The BLP55-3300 provides +3,3 V @ 5 A, +5 V @ 2,5 A, and +12 V @ 0,7 A. Additional features include a compact 76,2 x 127,0 x 31,8 mm package that is compatible with industry-standard footprints and connectors, remote sense, and output overvoltage protection.

Regulatory agency approvals include UL and TUV recognition. Onboard EMI filtering provides FCC compliance.

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