BCM Bus Converter BCM384y120x800AC1 S CUNRTLS C US Fixed Ratio DC-DC Converter Features Product Ratings Up to 800 W continuous output power 3 1177 W/in power density V = 384 V ( 260 410 V) POUT = up to 800 W IN 97.3 % peak efficiency V = 12 V ( 8.13 12.81 V) OUT 4242 Vdc isolation K = 1/32 (NO LOAD) Parallel operation for multi-kW arrays OV, OC, UV, short circuit and thermal protection Product Description 2361 through-hole ChiP package n 2.402 x 0.990 x 0.286 The VI Chip Bus Converter (BCM) is a high efficiency Sine ( 61.00 mm x 25.14 mm x 7.26 mm) Amplitude Converter (SAC), operating from a 260 to 410 VDC TM primary bus to deliver an isolated ratiometric output from PMBus management interface* 8.13 to 12.81 VDC. The BCM384y120x800AC1 offers low noise, fast transient response, and industry leading efficiency and power density. In Typical Applications addition, it provides an AC impedance beyond the bandwidth of most downstream regulators, allowing input capacitance 380 DC Power Distribution normally located at the input of a POL regulator to be located at High End Computing Systems the input of the BCM module. With a K factor of 1/32 , that capacitance value can be reduced by a factor of 1024 x, resulting Automated Test Equipment in savings of board area, material and total system cost. Industrial Systems The BCM384y120x800AC1 , combined with the D44TL1A0 High Density Power Supplies Digital Supervisor and I13TL1A0 Digital Isolator, provide a Communications Systems secondary referenced PMBus compatible telemetry and Transportation control interface. This interface provides access to the BCMs internal controller conguration, fault monitoring, and other telemetry functions. Leveraging the thermal and density benets of Vicors ChiP packaging technology, the BCM module offers exible thermal management options with very low top and bottom side thermal impedances. Thermally-adept ChiP-based power components, enable customers to achieve low cost power system solutions with previously unattainable system size, weight and efficiency attributes, quickly and predictably. *When used with D44TL1A0 and I13TL1A0 chipset BCM Bus Converter Rev 1.2 vicorpower.com 800 927.9474 Page 1 of 23 05/2015 BCM384y120x800AC1 Typical Application BCM SER-OUT SER-OUT EN SER-IN enable/disable switch SER-IN FUSE +IN +OUT V C POL IN I BCM ELEC IN OUT PRIMARY SECONDARY SOURCE RTN ISOLATION BOUNDRY Digital Isolator Host C NC PRI OUT A SEC IN A VDDB t SER-IN + V EXT TXD VDD PRI OUT B SEC IN B Digital SER-OUT Supervisor SGND PRI IN C SEC OUT C RXD PRI COM SEC COM SGND PMBus PMBus SGND SGND SGND BCM384y120x800AC1 + PRM + VTM, Adaptive Loop Configuration BCM Bus Converter Rev 1.2 vicorpower.com 800 927.9474 Page 2 of 23 05/2015