BCM Bus Converter BCM48Bx320y300A00 S CUNRTL S C US Isolated Fixed-Ratio DC-DC Converter Features & Benefits Product Ratings 48 32.0V 300W Bus Converter DC V = 48V (38 55V) P = up to 300W IN OUT High efficiency (>96%) reduces system power consumption V = 32.0V (25.3 36.7V) OUT K = 2/3 (No Load) 3 High power density (>1022W/in ) reduces power system footprint by >40% Product Description Contains built-in protection features: The VI Chip bus converter is a highefficiency (>96%) 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 25.3 to 36.7V . 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 BCM48Bx320y300A00 is 2/3, the capacitance value internal temperature monitoring can be reduced by a factor of 2.25x, resulting in savings of board Can be paralleled to create multi-kW arrays area, materials and total system cost. The BCM48BF320y300A00 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 BCM48Bx320y300A00 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 = JLead T = 40 to 125C BCM48Bx320y300A00 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 1.4 Page 1 of 20 10/2018BCM48Bx320y300A00 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, inputsider eferenced signal J1, J2 RSV NC No connect K1, K2 PC OUTPUT/INPUT Enable and disable control, inputside 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 1.4 Page 2 of 20 10/2018