BCM48BH120M120B00 Vicor

BCM Bus Converter BCM48Bx120y120B00 S CUNRTL S C US Isolated Fixed Ratio DC-DC Converter Features & Benefits Product Ratings 48V 12V 120W Bus Converter V = 48V (38 55V) P = up to 120W DC DC IN OUT High efficiency (>95%) reduces V = 12V (9.5 13.75V) OUT K = 1/4 (no load ) system power consumption 3 High power density (801W/in ) reduces Description power system footprint by >50% Half Chip VI Chip package enables surface mount, The VI Chip Bus Converter is a high efficiency (>95%) Sine TM Amplitude ConverterTM (SAC ) operating from a 38 to 55V low impedance interconnect to system board DC primary bus to deliver an isolated ratiometric output voltage from Contains built-in protection features against: 9.5 to 13.75V . The SAC offers a low AC impedance beyond DC n Undervoltage the bandwidth of most downstream regulators, meaning that n Overvoltage input capacitance normally located at the input of a 12V regulator can be located at the input to the SAC. Since the K factor of n Overcurrent the BCM48Bx120y120B00 is 1/4, that capacitance value can be n Short Circuit reduced by a factor of 16x, resulting in savings of board area, n Overtemperature materials and total system cost. Provides enable/disable control, The BCM48BH120y120B00 is provided in a VI Chip package internal temperature monitoring compatible with standard pick-and-place and surface mount assembly processes. The VI Chip package provides flexible thermal ZVS/ZCS Resonant Sine Amplitude Converter topology management through its low junction-to-case and junction-to- Less than 50C temperature rise at full load board thermal resistance. With high conversion efficiency the in typical applications BCM48Bx120y120B00 increases overall system efficiency and lowers operating costs compared to conventional approaches. Typical Application Part Numbering High End Computing Systems Automated Test Equipment Product Number Package Style (x) Product Grade (y) Telecom Base Stations T = -40 to 125C BCM48Bx120y120B00 H = J-Lead High Density Power Supplies M = -55 to 125C Communication Systems For Storage and Operating Temperatures see Section 6.0 General Characteristics Typical Application POL enable / disable switch TM PC POL SW1 BCM F1 POL +IN +OUT 3.15A V V C1 10F IN OUT POL -IN -OUT BCM Bus Converter Rev 1.3 vicorpower.com Page 1 of 20 08/2016 800 927.9474BCM48Bx120y120B00 Pin Configuration 4 3 2 1 A +IN B +OUT C D NC E TM F J G NC H K PC -OUT L -IN M Bottom View Pin Descriptions Pin Number Signal Name Type Function A1-B1, A2-B2 +IN INPUT POWER Positive input power terminal INPUT POWER L1-M1, L2-M2 IN Negative input power terminal RETURN E1 NC NC No connect F2 TM OUTPUT Temperature monitor, input side referenced signal G1 NC NC No connect H2 PC OUTPUT/INPUT Enable and disable control, input side referenced signal A3-D3, A4-D4 +OUT OUTPUT POWER Positive output power terminal OUTPUT POWER J3-M3, J4-M4 OUT Negative output power terminal RETURN Control Pin Specifications See Using the Control Signals PC, TM for more information. PC (BCM Primary Control) TM (BCM Temperature Monitor) The PC pin can enable and disable the BCM module. When held The TM pin monitors the internal temperature of the BCM module below V the BCM shall be disabled. When allowed to PC DIS within an accuracy of 5C. It has a room temperature setpoint of float with an impedance to IN of greater than 60k the ~3.0V and an approximate gain of 10mV/C. It can source up to module will start. When connected to another BCM PC pin 100A and may also be used as a Power Good flag to verify that (either directly, or isolated through a diode), the BCM modules the BCM module is operating. will start simultaneously when enabled. The PC pin is capable of being either driven high by an external logic signal or internal pull up to 5V (operating). BCM Bus Converter Rev 1.3 vicorpower.com Page 2 of 20 08/2016 800 927.9474