BCM Bus Converter BCM48Bx240y300A00 S CUNRTL S C US Isolated Fixed Ratio DC-DC Converter Features & Benefits Product Ratings 48V 24.0V 300W Bus Converter V = 48V (38 55V) P = up to 300W DC DC IN OUT High efficiency (>94%) reduces system power consumption V = 24V (19.0 27.5V) OUT K = 1/2 (no load ) 3 High power density (>1022W/in ) reduces power system footprint by > 40% Description Contains built-in protection features: The VI Chip bus converter is a high efficiency (>94%) Sine Undervoltage Amplitude Converter (SAC) operating from a 38 to 55V DC Overvoltage Lockout primary bus to deliver an isolated, ratiometric output voltage from Overcurrent Protection 19.0 to 27.5V . The Sine Amplitude Converter offers a low AC DC Short circuit Protection impedance beyond the bandwidth of most downstream regulators Overtemperature Protection therefore capacitance normally at the load can be located at the input to the Sine Amplitude Converter. Since the transformation Provides enable/disable control, ratio of the BCM48Bx240y300A00 is 1/2, the capacitance value internal temperature monitoring can be reduced by a factor of 4x, resulting in savings of board area, Can be paralleled to create multi-kW arrays materials and total system cost. The BCM48BF240y300A00 is provided in a VI Chip package Typical Applications compatible with standard pick-and-place and surface mount assembly processes. The co-molded VI Chip package provides High-End Computing Systems enhanced thermal management due to a large thermal interface area and superior thermal conductivity. The high conversion Automated Test Equipment efficiency of the BCM48Bx240y300A00 increases overall system efficiency and lowers operating costs compared to High-Density Power Supplies conventional approaches. Communications Systems Part Numbering Product Number Package Style (x) Product Grade (y) F = J-Lead T = 40 to 125C BCM48Bx240y300A00 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 1.5 Page 1 of 21 01/2021BCM48Bx240y300A00 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 1.5 Page 2 of 21 01/2021