BCM Bus Converter BCM48Bx040y200B00 S CUNRTL S C US Isolated Fixed Ratio DC-DC Converter Features & Benefits Product Ratings 48V 4V 200W Bus Converter V = 48V (38 55V) P = up to 200W DC DC IN OUT High efficiency (>94%) reduces system V = 4V (3.2 4.6V) OUT K = 1/12 (no load ) power consumption 3 High power density (>681W/in ) Description reduces power system footprint by >40% Contains built-in protection features: The VI Chip bus converter is a high efficiency (>94%) Sine n Undervoltage Amplitude Converter (SAC) operating from a 38 to 55V DC primary bus to deliver an isolated, ratiometric output voltage from n Overvoltage Lockout 3.2 to 4.6V . The Sine Amplitude Converter offers a low AC DC n Overcurrent Protection impedance beyond the bandwidth of most downstream regulators n Short circuit Protection therefore capacitance normally at the load can be located at the n Overtemperature Protection input to the Sine Amplitude Converter. Since the transformation ratio of the BCM48Bx040y200B00 is 1/12, the capacitance value Provides enable/disable control, can be reduced by a factor of 144x, resulting in savings of board internal temperature monitoring area, materials and total system cost. Can be paralleled to create multi-kW arrays The BCM48BF040y200B00 is provided in a VI Chip package compatible with standard pick-and-place and surface mount assembly processes. The co-molded VI Chip package provides Typical Applications enhanced thermal management due to a large thermal interface area and superior thermal conductivity. The high conversion High End Computing Systems efficiency of the BCM48Bx040y200B00 increases overall system efficiency and lowers operating costs compared to conventional Automated Test Equipment approaches. High Density Power Supplies Communications Systems Part Numbering Product Number Package Style (x) Product Grade (y) F = J-Lead T = -40 to 125C BCM48Bx040y200B00 T = Through hole M = -55 to 125C For Storage and Operating Temperatures see General Characteristics Typical Application PC enable / disable TM L switch BCM SW1 O Bus Converter F1 A +IN +OUT V D IN -IN -OUT BCM Bus Converter Rev 1.3 vicorpower.com Page 1 of 20 08/2016 800 927.9474BCM48Bx040y200B00 Pin Configuration 43 21 A A B B +OUT +IN C C D D E E F -OUT G TM H H J RSV J K K PC +OUT L L M M N N -IN P P R -OUT R T T Bottom View Pin Descriptions Pin Number Signal Name Type Function A1-E1, A2-E2 +IN INPUT POWER Positive input power terminal INPUT POWER L1-T1, L2-T2 IN Negative input power terminal RETURN H1, H2 TM OUTPUT Temperature monitor, input side referenced signal J1, J2 RSV NC No connect K1, K2 PC OUTPUT/INPUT Enable and disable control, input side referenced signal A3-D3, A4-D4, +OUT OUTPUT POWER Positive output power terminal J3-M3, J4-M4 E3-H3, E4-H4, OUTPUT POWER OUT Negative output power terminal N3-T3, N4-T4 RETURN BCM Bus Converter Rev 1.3 vicorpower.com Page 2 of 20 08/2016 800 927.9474