VTM Current Multiplier VTM48Ex040y050B00 S CUNRTL S High-Efficiency Sine Amplitude Converter Features & Benefits Product Ratings 48V to 4V 50A current multiplier DC DC V = 26 55V I = 50A (Nominal) IN OUT Operating from standard 48V or 24V PRM Regulators V = 2.2 4.6V (No Load) K = 1/12 OUT High efficiency (>94%) reduces system power consumption Product Description 3 High density (170A/in ) The VI Chip current multiplier is a high-efficiency (>94%) Full Chip VI Chip package enables surface mount, Sine Amplitude Converter (SAC) operating from a 26 to 55V DC low-impedance interconnect to system board primary bus to deliver an isolated output. The Sine Amplitude Contains built-in protection features against: Converter offers a low AC impedance beyond the bandwidth of most downstream regulators therefore capacitance normally at the Overvoltage Lockout load can be located at the input to the Sine Amplitude Converter. Overcurrent Since the K factor of the VTM48EF040T050B00 is 1/12, the Short Circuit capacitance value can be reduced by a factor of 144, resulting in Overtemperature savings of board area, materials and total system cost. Provides enable / disable control, The VTM48EF040T050B00 is provided in a VI Chip package internal temperature monitoring compatible with standard pick-and-place and surface mount assembly processes. The co-molded VI Chip package provides ZVS / ZCS resonant Sine Amplitude Converter topology enhanced thermal management due to a large thermal interface area and superior thermal conductivity. The high conversion Less than 50C temperature rise at full load efficiency of the VTM48EF040T050B00 increases overall in typical applications system efficiency and lowers operating costs compared to conventional approaches. Typical Applications The VTM48EF040T050B00 enables the utilization of Factorized Power Architecture which provides efficiency and size benefits High-End Computing Systems by lowering conversion and distribution losses and promoting Automated Test Equipment high-density point-of-load conversion. High-Density Power Supplies Part Numbering Communications Systems Product Number Package Style (x) Product Grade (y) F = J-Lead T = 40 to 125C VTM48Ex040y050B00 T = Through hole M = 55 to 125C For Storage and Operating Temperatures see General Characteristics Section Typical Application Regulator Voltage Transformer VC TM PR SG VC OS PC PC CD L TM (See Application Note AN:024) IL VTM PRM O Transformer Regulator A +OUT +OUT +IN +IN D V IN -OUT -OUT -IN -IN TM Factorized Power Architecture VTM Current Multiplier Rev 1.2 Page 1 of 19 03/2019VTM48Ex040y050B00 Absolute Maximum Ratings The absolute maximum ratings below are stress ratings only. Operation at or beyond these maximum ratings can cause permanent damage to the device. Parameter Comments Min Max Unit +IN to IN 1.0 60 V DC PC to IN 0.3 20 V DC TM to IN 0.3 7 V DC VC to IN 0.3 20 V DC +IN / IN to +OUT / OUT (hipot) 2250 V DC +OUT to OUT 1.0 10 V DC Electrical Specifications Specifications apply over all line and load conditions unless otherwise noted boldface specifications apply over the temperature range of 40C < T < 125C (T-Grade). All other specifications are at T = 25C unless otherwise noted. J J Attribute Symbol Conditions / Notes Min Typ Max Unit Powertrain No external VC applied 26 55 Input Voltage Range V V IN DC VC applied 0 55 V Slew Rate dV / dt 1 V / s IN IN Module latched shutdown, No external VC applied, V UV Turn Off V 24 26 V IN IN UV I = 50A OUT V = 48V 1.5 10.0 IN V = 26 55V 12 IN No Load Power Dissipation P W NL V = 48V, T = 25C 4.7 6.3 IN C V = 26 55V, T = 25C 8 IN C VC enable, V = 48V, C = 9100F, IN OUT Inrush Current Peak I 10 20 A INRP R = 78m LOAD DC Input Current I 4.5 A IN DC Transfer Ratio K K = V / V , I = 0A 1/12 V / V OUT IN OUT Output Voltage V V = V K I R V OUT OUT IN OUT OUT Output Current (Average) I 50 A OUT AVG Output Current (Peak) I t < 10ms, I 50A 75 A OUT PK PEAK OUT AVG Output Power (Average) P I 50A 230 W OUT AVG OUT AVG V = 48V, I = 50A 93.1 94.0 IN OUT Efficiency (Ambient) V = 26 55V, I = 50A 90.2 % AMB IN OUT V = 48V, I = 25A 92.4 93.5 IN OUT Efficiency (Hot) T % V = 48V, = 100C, I = 50A 93.0 94.0 HOT C IN OUT Efficiency (Over Load Range) % 10A < I < 50A 80.0 20% OUT VTM Current Multiplier Rev 1.2 Page 2 of 19 03/2019